The order from the greatest number of triangles to the smallest is: Condition A, Condition B, Condition C.
What is triangle inequality theorem?According to the Triangle Inequality Theorem, any two triangle sides' sums must be bigger than the length of the third side.
The triangle inequality theorem can be used to determine the order of the greatest to smallest triangle.
Condition A: Under this condition, we have two sides with lengths 5 and 6, and their angle is 50°. Using these requirements, we may create two separate triangles since 5 + 6 = 11, which is more than the third side.
Condition B: This condition results in a right triangle with a third angle that is 90° and two sharp angles that measure 40° and 50°. According to the Pythagorean theorem, the triangle's two legs must be 30 and 40 inches long, respectively, meaning that the hypotenuse must be 50 inches long. We can only create one triangle as a result.
Condition C: This condition provides us with three sides that are 4, 5, and 9 lengths long. Any two sides must have a length total larger than the third side in order for a triangle to be formed. The three sides provided, however, do not satisfy this since 4 + 5 = 9. Hence, under these circumstances, a triangle cannot be formed.
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For triangles ABC and DEF, ∠A ≅ ∠D and B ≅ ∠E. Based on this information, which statement is a reasonable conclusion?
a. ∠C ≅ ∠D because they are corresponding angles of congruent triangles.
b. CA ≅ FD because they are corresponding parts of congruent triangles.
c. ∠C ≅ ∠F because they are corresponding angles of similar triangles.
d. AB ≅ DE because they are corresponding parts of similar triangles.
the triangles are similar, corresponding parts of the triangles are equal in measure. Thus, it is reasonable to conclude that [tex]AB ≅ DE.[/tex]
It is reasonable to conclude that [tex]AB ≅ DE[/tex]because triangles ABC and DEF are similar.
This means that corresponding parts of the two triangles are equal in measure. Specifically, ∠A and ∠D are equal in measure, as are ∠B and ∠E.
Therefore, the corresponding sides AB and DE are equal in measure.
A way to show that the two triangles are similar is by using the AA Similarity Postulate.
This postulate states that if two angles of one triangle are equal in measure to two angles of a second triangle, then the two triangles are similar. In this case, [tex]∠A ≅ ∠D and B ≅ ∠E[/tex], which means the two triangles are similar.
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A solid square-based pyramid 1 is divided into two parts: a square-based pyramid 2 and a frustum 3.
Pyramid 1 has a base of side length 8 cm.
Pyramid 2 has a base of side length 2 cm.
The perpendicular height of pyramid 1 is 10 cm.
Frustum 3 is made from a material with a density of 4.2g/cm^3
Work out the mass of the frustum,
The mass of the frustum is 784kg
What is a frustum?Remember that a frustum is a unique 3D object that is derived by cutting the apex of a cone or a pyramid.
We should know that since pyramid 1 and pyramid 2 are similar,
The perpendicular height of pyramid 2 is 10*4/8 = 5cm
So the volume of [pyramid 1 is =V₁ = 1/3*8²*10 = 640/3 cm³
The voluume of pyramid 2 V₂ = 1/3*4²*5 = 40/3 cm³
So the volume of frustum is 640/3 cm³ - 40/3 cm³ = 560/3 cm³
Recall mass = density*volume
So the mass is = 560/3 * 42 = 784g
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Find the interest refund on a 35-month loan with interest of $2,802 if the loan is paid in full with 13 months remaining.
Answer: $1,071.54
Step-by-step explanation:
To find the interest refund, first we need to calculate the total interest charged on the loan. We can do this by multiplying the monthly interest by the number of months in the loan:
Monthly interest = Total interest / Number of months
Monthly interest = $2,802 / 35
Monthly interest = $80.06
Total interest charged on the loan = Monthly interest x Number of months
Total interest charged on the loan = $80.06 x 35
Total interest charged on the loan = $2,802.10
Now we need to calculate the interest that would have been charged for the remaining 13 months of the loan:
Interest for remaining 13 months = Monthly interest x Remaining months
Interest for remaining 13 months = $80.06 x 13
Interest for remaining 13 months = $1,040.78
Finally, we can find the interest refund by subtracting the interest for the remaining 13 months from the total interest charged on the loan:
Interest refund = Total interest charged - Interest for remaining months
Interest refund = $2,802.10 - $1,040.78
Interest refund = $1,074.32
Therefore, the interest refund on the loan is $1,074.30.
Classify the following linear differential equations according to whether they are time- variable or time-invariant. Indicate any time-variable terms. a. + 2y = 0 dtz d b. (t²y) = 0 dt C. (+)²+(+) y = - t+1 d²y d. + (cost)y = 0 dt² y = 0 ECO
a. Time-invariant (no time-variable terms)
b. Time-variable (t² is time-variable)
c. Time-invariant (no time-variable terms)
d. Time-invariant (no time-variable terms)
e. Time-invariant (no time-variable terms)
A linear differential equation is one that involves only linear combinations of the dependent variable and its derivatives, as well as any coefficients that are functions of the independent variable (time in this case).
In the first equation, +2y=0, there are no terms that involve the independent variable, so this is a time-invariant equation.
In the second equation, (t²y)'=0, there is a term involving the independent variable t, specifically t². Therefore, this equation is time-variable.
In the third equation, y''+y'=-t+1, there are two terms involving the independent variable, namely -t and 1. Therefore, this equation is time-variable.
In the fourth equation, (cos(t)y)'=0, there is a term involving the independent variable t, specifically cos(t). Therefore, this equation is time-variable.
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The spinner above is used in a game. What is the theoretical probability of the given event with one spin?
P (5)
Answer:
B
Step-by-step explanation
so there is 8 numbers so when you spin you have a 1/8 chance of spinning the numberWrite a quadratic equation that goes through the points (0,5), (2,1), and (1,2). y = ax^2 + bx + c
D
(1) Bought a Box of 100 Phone X
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Find the surface area of the box shown.
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Therefore , the solution of the given problem of surface area comes out to be the box's surface size is 304 in².
What precisely is a surface area?Its total size can be determined by figuring out how much room would be required to completely cover the outside. When choosing comparable substance with a rectangular shape, the surroundings are taken into account. Something's total dimensions are determined by its surface area. The volume of water that a cuboid can contain depends on the number of edges that are present in the region between its four trapezoidal angles.
Here,
Six faces make up the box: the top, bottom, two sides, and both extremities. Given that both the top and lower faces are rectangles with 10 by 8-inch measurements, the area of each face is:
=> 80 in²= 10 in * 8 in
The region of each side face is thus:
=> 10 in * 4 in = 40 in²
=> 8 in * 4 in = 32 in²
As a result, the box's surface area equals the total of the areas of its six faces:
=> Surface area = 2(80 in²) + 2(40 in²) + 2(32 in²)
=> Surface area = 160 in² + 80 in² + 64 in²
=> Surface area = 304 in²
Consequently, the box's surface size is 304 in².
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How do you find the volume under the surface and above the rectangle?
To find the volume under a surface and above a rectangle, use a double integral. Integrate the surface function over the rectangle and approximate using Riemann sums or numerical methods to obtain an estimate of the volume
To find the volume under a surface and above a rectangle in three-dimensional space using a double integral, we can follow these steps:
Determine the limits of integration for x and y based on the rectangle R. Write the function f(x,y) that defines the surface. Set up the double integral with the limits of integration and the function f(x,y). Evaluate the integral using appropriate integration techniques.To learn more about volume of three-dimensional space:
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Region R is bounded by the curves y = 4x2 and y = 4. A solid has base R, and cross sections perpendicular to the y-axis are semicircles with the diameter lying in R. The volume of this solid is.
For a bounded region, R between the curves y = 4x² and y = 4 and the volume of a solid has base R, and cross sections perpendicular to the y-axis is equals to the π square units.
We have a region R is bounded by the curves y = 4x² and y = 4. Solid has base R and cross sections perpendicular to the y-axis are semicircles with the diameter lying in region R. When solving the volume using slicing method we use the basic formula which is the area times the length V = A×l, where A is the area of the cross-section. Also, the formula for the area of cross section for semicircle
= (1/2)π(d/2)²
= (π/8)d², where d is the diameter
Based on the graph the volume of a single semicircle strip is, dV = (π/8)x²dy
=> dV = (π/8) (y/4) dy ( since, y = 4x² , x²
= y/4 )
=> dV = (π/32)4y dy
=> dV = (π/8)ydy --(1)
Now, the limits are, y = 0, 4
Integrating equation (1), with limits 0 to 4.
[tex]∫dV = \frac{π}{8} ∫_{0}^{4}y dy[/tex]
[tex]V= \frac{π}{8} [ \frac{y^{2} }{2} ]_{0}^{4} [/tex]
[tex]V = \frac{π}{8} [ \frac{16}{2} - 0] = 8(\frac{π}{8}) = π[/tex]
Hence, the required volume is π square units.
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a reaseacher tests the null hypothesis that the mean body temperature of residents in a nursing home is 98.6 f. which statistical test could the researcher use?
The statistical test that a researcher could use to test the null hypothesis that the mean body temperature of residents in a nursing home is 98.6°F is a one-sample t-test.
What is a statistical test?A statistical test is a method that enables the comparison of the collected data with the assumed distribution of the data. A statistical test aids in determining if the outcomes of the experiment or research are caused by the treatment or if they are due to the random variation in the data.
A null hypothesis is a type of hypothesis that predicts the absence of a relationship between variables or groups. The null hypothesis claims that no difference exists between two variables or groups, and that any observed differences are due to chance.
Alternative hypotheses are used to reject null hypotheses, as they predict the presence of a relationship between variables or groups.
The significance level, which is the probability of committing a Type I error, is often used to set the null hypothesis. The statistical test that a researcher could use to test the null hypothesis that the mean body temperature of residents in a nursing home is 98.6°F is a one-sample t-test.
The t-test will aid in determining if the difference between the mean body temperature of residents in the nursing home and 98.6°F is statistically significant.
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A square yellow rug has a orange square in the center. The side length of the orange square is x inches. The width of the yellow band that surrounds the orange square is 5 in. What is the area of the yellow band?
The yellow band has a surface area of 20x + 100 square inches.
The area of the yellow band is the difference between the area of the yellow square and the area of the orange square.
The yellow square has a side length of (x + 10) inches, where 10 inches is the sum of the widths of the two yellow bands that border the orange square.
So the area of the yellow square is:
A_ yellow = (x + 10)²
The orange square has a side length of x inches, so its area is:
A_ orange = x²
The area of the yellow band is the difference between these two areas:
A_ band = A_ yellow - A_ orange
= (x + 10)² - x²
= x² + 20x + 100 - x²
= 20x + 100
Therefore, the area of the yellow band is 20x + 100 square inches.
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Amanda ran for president of the chess club, and she received 42 votes. There were 56 members in the club. What percentage of the club members voted for Amanda?
A rectangle A with length 10 centimeters and width 5 centimeters is similar to another rectangle B whose length is 30 centimeters. Find the area of rectangle B.
A. 450 centimeters squared
B. 350 centimeters squared
C. 750 centimeters squared
D. 650 centimeters squared
The area of rectangle B is 450 centimeters squared.
How to find the area of rectangle B?
The area of rectangle B can be found by using the property of similar rectangles: the ratio of their corresponding lengths is equal to the ratio of their corresponding areas.
Therefore, the ratio of the lengths of rectangles A and B is 1:3.
Given:
Rectangle A
Length = 10 centimeters
Width = 5 centimeters
Then,
Rectangle B
Length = 30 centimeters
Width = (5 x 3) centimeters = 15 centimeters
Area of rectangle = Length x Width
Area of rectangle B = (30 x 15) centimeters
Area of rectangle B = 450 centimeters
Thus, the correct option is B. 450 centimeters squared.
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Suppose f is a continuous function defined on a rectangle R=[a,b]X[c,d]. What is the geometric interpretation of the double integral over R of f(X,y) if f(X,y)>0
If f(x,y) > 0 and is a continuous function defined over a rectangle R=[a,b]x[c,d], then the double integral over R of f(x,y) can be interpreted as the volume of a solid that lies in the first octant and under the graph of the function f(x,y) over the region R.
The geometric interpretation of the double integral over R of f(x,y) if f(x,y) > 0, where f is a continuous function defined on a rectangle R = [a,b] × [c,d] is given as follows:
The double integral of f(x,y) over R, if f(x,y) > 0, gives the volume under the graph of the function f(x,y) over the region R in the first octant.
Consider a point P (x, y, z) on the graph of f(x, y) that is over the region R, and let us say that z = f(x,y). If f(x,y) > 0, then P is in the first octant (i.e. all its coordinates are positive).
As a result, the volume of the solid that lies under the graph of f(x,y) over the region R in the first octant can be found by integrating the function f(x,y) over the rectangle R in the xy-plane, which yields the double integral.
The following formula represents the double integral over R of f(x,y) if f(x,y) > 0:
∬Rf(x,y)dydx
The geometric interpretation of the double integral over R of f(x,y) if f(x,y) > 0 is given by the volume of the solid that lies under the graph of the function f(x,y) over the region R in the first octant.
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Coffee pods are sold in three different sizes of box. A small box has 12 coffee pods and costs £4.08. A medium box has 20 coffee pods and costs £7.80. A large box has 35 coffee pods and costs £12.95. Work out which size of box gives the best value for money. O small box O medium box O large box.
we can see that the small box offers the best value for money with a cost of £0.34 per coffee pod. Therefore, the answer isThe small box gives the best value for money.
How to find the cost of pods?To determine the best value for money among the three sizes of coffee pod boxes, we need to calculate the cost per coffee pod for each size of the box.
For a small box with 12 coffee pods costing £4.08, the cost per coffee pod can be calculated as:
Cost per coffee pod = £4.08 ÷ 12 = £0.34
For a medium box with 20 coffee pods costing £7.80, the cost per coffee pod can be calculated as:
Cost per coffee pod = £7.80 ÷ 20 = £0.39
For a large box with 35 coffee pods costing £12.95, the cost per coffee pod can be calculated as:
Cost per coffee pod = £12.95 ÷ 35 = £0.37
Comparing the cost per coffee pod for each box size, we can see that the small box offers the best value for money with a cost of £0.34 per coffee pod. Therefore, the answer is:
The small box gives the best value for money.
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Write the linear equation of a line going through (-2,7) with a y-intercept of -3.
Answer:
y = -5x - 3
Step-by-step explanation:
A linear equation is y = mx + b
m = the slope
b = y-intercept
We know
Points (-2,7) (0,-3)
Slope = rise/run or (y2 - y1) / (x2 - x1)
We see the y decrease by 10 and the x increase by 2, so the slope is
m = -10/2 = -5
Y-intercept is located at (0, -3)
So, the equation is y = -5x - 3
Work out the value of x and the value of y in the simultaneous equations below. 4x + 7y = 40 - 4x + 4y = 4
The solution for the simultaneous of equations 4x + 7y = 40 and 4x + 4y = 4 by elimination are x = -11, y = 12
How to evaluate for the solutions of the equations by eliminationwe shall write the equations as:
4x + 7y = 40...(1)
4x + 4y = 4...(2)
subtract equation (2) from (1) to eliminate x
4x + 7y - 4x - 4y = 40 - 4
3y = 36
divide through by 3
y = 12
put the value 12 for y in equation (1) to get
4x + 7(12) = 40
4x + 84 = 40
4x = 40 - 84 {subtract 84 from both sides}
4x = -44
divide through by 4;
x = -11
Therefore, the solution for the simultaneous of equations 4x + 7y = 40 and 4x + 4y = 4 by elimination are x = -11, y = 12
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if we wanted to represent the decimal number 0.0009765625 as a binary floating point number with an 8-bit mantissa, what would the mantissa be?your answer should be some combination of exactly 8 0's or 1's. no spaces or other extra charcacters.
We can represent the decimal number 0.0009765625 as a binary floating point number with an 8-bit mantissa. The mantissa would be: 00000001
To represent the decimal number 0.0009765625 as a binary floating point number with an 8-bit mantissa, follow these steps:
Step 1: Convert the given decimal number into binary
[tex]0.0009765625 = 0.00000001111101000100100001111111[/tex] (approx.)
Step 2: Normalize the binary number and represent it in scientific notation
0.00000001111101000100100001111111 = 1.111101000100100001111111 x 2^-15
Step 3: Separate the sign, mantissa, and exponent. The sign will be 0, as the given number is positive. The exponent will be -15.
And the mantissa will be the 8 bits from the binary number (excluding the first bit, which is 1)1.11101000 (mantissa)
Step 4: Round the last bit of the mantissa if necessary, which is not needed here.
Hence the mantissa would be 00000001 (since we have to represent the mantissa with an 8-bit number).
Hence, the binary floating-point number with an 8-bit mantissa representing the decimal number 0.0009765625 is:
[tex]0 01111000 00000001[/tex]
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A population model assumes that the number of people living in Stoverton is increasing by x% each year.
The population is expected to increase by 60% in 6 years, work out the value of x.
Give your answer to 1 decimal place.
Around 9.49% more population increase live in Staverton every year.
What in mathematics is repeated percentage change?Calculating the overall percentage change as a result of multiple successive percentage changes is required for repeated percentage change questions.
Let P be the town's current population, and let r represent the growth rate in decimal form. In six years, the population can be stated as follows:
P * (1 + r)⁶
The problem states that this population is 60% more than the present population, or
P * (1 + 0.6) = 1.6P
Therefore:
1.6P = P * (1 + r)⁶
Dividing both sides by P:
1.6 = (1 + r)⁶
Taking the sixth root of both sides:
(1 + r) = 1.6(1/6)
Subtracting 1 from both sides:
r = 1.6(1/6) - 1
Using a calculator, we find that:
r ≈ 0.0949 or about 9.49%
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You have a circular loop of wire in the plane of the page with an initial radius of 0.40 m which expands to a radius of 1.00 m. It sits in a constant magnetic field B = 24 mT pointing into the page. Assume the transformation occurs over 1.0 second and no part of the wire exits the field. Also assume an internal resistance of 30 Ω. What average current is produced within the loop and in which direction? Express your answer with the appropriate units. Enter positive value if the current is clockwise and negative value if the current is counterclockwise. My INCORRECT work: emf = -BAcos(theta)/dt emf = -B*1*(dA/dt) emf = -B*pi*(2*(expansion rate/1)^2*t+2*r0*(expansion rate/1) Then V=IR so emf=IR so I=emf/R I = -[B*pi*(2*(expansion rate/1)^2*t+2*r0*(expansion rate/1)]/R I = -[24x10^-3*pi*(2*.6^2*1+2*.4*.6)]/30 I ~ -3.015928947x10^-3 I ~ -3.0x10^-3 Which is wrong.
In the given scenario, the average current produced within the loop is approximately 2.13 A.
We can begin by computing the change in magnetic flux across the loop as it expands to determine the average current generated within the loop.
The following equation provides the magnetic flux across a loop:
Φ = B * A * cos(θ)
ΔΦ = B * ΔA
ΔA = A₂ - A₁ = π * (1.00 m)² - π * (0.40 m)² = π * (1.00² - 0.40²) = π * (1.00 + 0.40)(1.00 - 0.40) = π * (1.40)(0.60) = 0.84π m²
So,
ΔΦ = B * ΔA = (24 mT) * (0.84π m²) = 20.25π m²·T
emf = ΔΦ / Δt = (20.25π m²·T) / (1.0 s) = 20.25π V
As:
emf = I * R
So, again
I = emf / R = (20.25π V) / (30 Ω) ≈ 2.13 A
Thus, the average current produced within the loop is approximately 2.13 A.
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Adam spent $25 for 5 pizzas how much money does he need to buy 7 pizzas
$35
He would need $35 to buy 7 pizzas because if you divide 25 and 5, you would get 5.
5+5+5+5+5+5+5=35
5x7=35
Answer:
$35
Step-by-step explanation:
So basically to find the unit price we need to craft an equation. Lets imagine one pizza is p.
We can craft this equation:
5p = 25
Divide both sides by 5
p = 5
How we just multiply that unit price by 7 to get 35, which is the answer
I put a lot of thought and effort into my answers, so I would really appreciate a Brainliest!
Need help on number 3
Answer:
20.25 m²
Step-by-step explanation:
Area of triangle = (1/2) · b · h
b = 9m
h = 4.5m
Let's solve
(1/2) · 9 · 4.5 = 20.25 m²
So, the triangle area is 20.25 m²
Two lines intersect. Find the value of b and c. Solution:
The value of b = 42° and the value of c = 138°
What is intersection of line?In geometry, the intersection of lines is the point where two or more lines cross each other. The intersection of two lines occurs when they have a common point, which satisfies both of their equations simultaneously.
b° = 42° (Vertically opposite angles)
c°:
42° + 42° + c° + c° = 360° (Sum of angles at a point)
84° + 2c° = 360°
2c° = 360° - 84° = 276°
∴ c° = 276° ÷ 2 = 138°
c° = 138°
The intersection of lines is an important concept in geometry and is used in various applications such as solving systems of linear equations, finding the point of collision of two moving objects, and more.
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Question
The average of three numbers is 16. If one of the numbers is 18, what is the sum of the other two
numbers?
12
14
20
30
If the average of three numbers is 16 and one of the numbers is 18, then the sum of the other two numbers is option (d) 30
Let's use algebra to solve this problem. Let x and y be the other two numbers we are looking for. We know that the average of the three numbers is 16, so we can write:
(18 + x + y) / 3 = 16
Multiplying both sides by 3, we get,
[(18 + x + y) / 3] × 3 = 16 ×3
18 + x + y = 48
Subtracting 18 from both sides, we get,
18 + x + y - 18 = 48
x + y = 30
Therefore, the correct option is (d) 30
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It is estimated that 20 patrons will attend an event for every $100 spent in advertising. If tickets cost $40, how much cana
promoter expect to increase sales if he spends $10,000 in advertising?
ОООО
a) $70,000
b) $80,000
c) $90.000
d) $100,000
The number of sales a promoter can expect if he spends $10,000 in advertising is $80,000 that is option B.
While going through a word problem like this, read it a few times to comprehend the context without focusing too much on the numbers..... Something along the lines of....
"If a promoter spends money on advertising, he will get more customers."
Short sentences should be used to summarise the content.
$10,000 is spent by the promoter.
"For every $100 spent, 20 new customers are drawn."
"Tickets are $40."
In one calculation this would be:
Using ratio of,
income/expenditure = 800/100 = income/10,000
= 10000 x 20 x 40 / 100
= 80,000
Therefore, the value of sale increase should be $80,000.
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Construct an isosceles triangle whose base is 6cm and altitude is 3cm. Then draw another triangle whose sides are 1 1/3times the corresponding sides of the isosceles triangle
Steps of Construction:
1. Draw a line segment BC = 6 cm.
2. Draw a perpendicular bisector of BC that intersects the line BC at Q.
3. Mark A on the line such that OA = 4 cm.
4. Join A to B and C.
5. Draw a ray BX making an acute angle with BC.
6. Mark four points B1,B2, B3, and B4 on the ray BX. such that BB1 = B1B2 = B2B3 = B3B4.
7. Join B4C. Draw a line parallel to B4C through B3 intersecting line segment AB at A'.
Hence ΔA'BC' is the required triangle.
An isosceles triangle is a type of triangle that has two equal sides and two equal angles. The third angle is called the base angle and is typically different from the other two angles. The equal sides are called legs, and the third side is called the base.
Isosceles triangles have some interesting properties. One of them is that the base angles are always equal. This means that if you know the measure of one of the base angles, you can find the measure of the other one by subtracting it from 180 degrees and dividing by 2. Another property is that the altitude from the apex (the point opposite the base) always bisects the base, meaning that it cuts the base into two equal parts.
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Complete Question:
Construct an isosceles triangle whose base is 6 cm and altitude 4 cm. Then construct another triangle with sides are 3/4 the corresponding sides of the isosceles triangle.
Find the area of this parallelogram.
Answer:
Let the height of the parallelogram be h
Sin 60=h/4h=4sin60From :the formula of finding Area of the parallelogram
A=b×hA=5×4sin60 A=20sin60A= 17.3205m^2Write the coordinates of the vertices after a reflection over the x-axis.
104
-10
-8
-6
8888
-4 -2
8-
in
6
-4
2
-2
& IN
H
-4
6
-8
-10
E
2
4
6 8
G
F
Ao
10
Answer:
A
Step-by-step explanation:
The coordinate of the vertices (x,y) after a reflection over the x-axis is (x, -y). It is also known as a rule.
What are coordinates?Coordinates are two numbers (Cartesian coordinates) or a letter and a number that point to a specific point on a grid known as a coordinate plane. A coordinate plane has four quadrants and two axes: x (horizontal) and y (vertical).
here, we have,
A reflection of a point, line, or figure in the x-axis entailed mirroring the image over the x-axis. In this case, the x-axis is referred to as the axis of reflection.
The rule for reflecting over the x-axis is to negate the value of each point's y-coordinate while keeping the x-value constant.
For instance, when point P with coordinates (7,3) is reflected across the x-axis and mapped onto point P', P"s coordinates are (7,-3). The x-coordinate for both points remained unchanged, but the y-coordinate changed from 3 to -3.
Hence, The coordinate of the vertices (x,y) after a reflection over the x-axis is (x, -y). It is also known as a rule.
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write the equation of a circle if the diameter has endpoints at (-5, -3) and (15, 11). enter like this: (x 5)^2 (y-3)^2
The equation of the circle is (x - 5)² + (y - 4)² = (24.4)².
To write the equation of a circle with endpoints, we need to determine the center and radius of the circle.
Step 1: Determine the center of the circle by using the endpoints of the diameter. The midpoint of the diameter is the center of the circle. The midpoint formula is as follows. (x1 + x2/2, y1 + y2/2) = (center)
Use the given endpoints to find the center of the circle. (-5 + 15)/2, (-3 + 11)/2 = (5, 4)
Thus, the center of the circle is (5, 4).
Step 2: Determine the radius of the circle. The radius of the circle is half of the diameter. The distance formula is used to determine the distance between the two endpoints of the diameter. √((x2 - x1)² + (y2 - y1)²) = radius
Use the given endpoints to find the radius.√((15 - (-5))² + (11 - (-3))²) = √(20² + 14²) = √(400 + 196) = √596 ≈ 24.4
Thus, the radius of the circle is ≈24.4.
Step 3: Use the center and radius to write the equation of the circle. (x - 5)² + (y - 4)² = (24.4)². Therefore, the equation of the circle is (x - 5)² + (y - 4)² = (24.4)².
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A line passes through the point (-4,4) and has a slope of -3
Answer:
y=-3x -8
Step-by-step explanation:
4= -3(-4) = b
b=4-12 = -8
y=-3x -8