Answer:
E
Step-by-step explanation:
50 × 2 =100 cevap 120 olucak ve 4 fazla o zaman 120 +4 =124 ediyor yani 16 daha eklememiz lazım cevap E
A shopkeeper has $680 in the denominations of $50, $20, $10 and $5 notes. The number of notes of each denomination is equal. What is the total number of notes?
The total number of notes is 32
The number of notes
Let the number of notes be x
$50 = x
$20 = x
$10 = x
$5 = x
Total number of notes = 4x
Let's find 'x'
50x + 20x + 10x + 5x = 680
85x = 680
x = 680/ 85
x = 8
We know that;
Total number of notes = 4x = 4 × 8 = 32 notes
Thus, the total number of notes is 32
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Solve for x in the equation: 8a = 2xy + b.
Step-by-step explanation:
Simplifying 8a = 2xy + b
Reorder the terms: 8a = b + 2xy
Solving 8a = b + 2xy
Solving for variable 'a'. Move all terms containing a to the left, all other terms to the right.
Divide each side by '8'. a = 0.125b + 0.25xy
Simplifying a = 0.125b + 0.25xy
 i need help putting it in expanded form and solving it
Answer:
4x^04x^04x^04x^1 which equals 256
Step-by-step explanation:
The 4 outside of the parentheses says take what you have outside of the parentheses and multiply it by itself that may times.
x raised to the zero is 1, so you are just left with 4x4x4x4 or 256
find the value in the figure
Which function has the domain as y=2 square root of x
Using it's concept, any function with domain [tex]x \geq 0[/tex] has the same domain as [tex]y = 2\sqrt{x}[/tex].
What is the domain of a function?The domain of a function is the set that contains all possible input values for the function.
Function [tex]y = 2\sqrt{x}[/tex] is defined for [tex]x \geq 0[/tex], hence any function with domain [tex]x \geq 0[/tex] has the same domain as [tex]y = 2\sqrt{x}[/tex].
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a) Three angles on a straight line at a point are in the ratio 3 : 2:5. Find the difference between the largest and the smallest angle.
Answer:
54°
Step-by-step explanation:
The ratio values can be used to find the angles, then the desired difference can be found. Alternatively, the desired difference can be figured in terms of the ratio units given.
Ratio of difference to wholeThe number of ratio units representing the largest angle is 5. The number of ratio units representing the smallest angle is 2. The difference of these is 5 -2 = 3.
The total number of ratio units is 3 +2 +5 = 10. This is the number of ratio units representing the straight angle, 180°.
The difference is 3 of those 10 ratio units:
3/10 × 180° = 54° . . . . . . largest - smallest difference
Find the angles
There are 10 ratio units in total (3+2+5=10), so each represents 180°/10 = 18°. Multiplying the given ratios by 18° gives the angle values:
3×18° : 2×18° : 5×18° = 54° : 36° : 90°
The difference between the largest and smallest is ...
90° -36° = 54° . . . . . . largest - smallest difference
Manufacturers were subdivided into groups by volume of sales. Those with more than $100 million in sales were classified as large; those from $50 to $100 million as medium size; and those between $25 and $50 million, and so on. Samples were then selected from each of these groups. What is this type of sampling called
Stratified random sampling is used to subdivided into groups by volume of sales.
According to the statements
Manufacturers are subdivided into groups by volume of sales. and for this Stratified random sampling is used.
Stratified random sampling is the technique used divide the population can be partitioned into subpopulations.
Thus, Stratified random sampling is used to subdivided into groups by volume of sales.
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Surface area=
Help me please thanks so much
The Surface Area of the sphere is 1017.16 unit^2.
what is the surface area of the sphere?
The surface area of the sphere is 4*pi*r^2.
where, r is the radius
Calculation :
given radius is 9 units
putting value in the formula of the sphere
S(area)=4*pi*r^2
=4*3.14*9^2
=4*3.14*81
=1017.16 UNIT^2
The Surface Area of the sphere is 1017.16 unit^2.
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The Surface Area of the sphere is 1017.16 unit^2.
The surface area of the sphere is 4*pi*r^2.
where, r is the radius
Calculation :
given radius is 9 units
putting value in the formula of the sphere
S(area)=4*pi*r^2
=4*3.14*9^2
=1017.16 UNIT^2
The Surface Area of the sphere is 1017.16 unit^2.
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Which explains how to show that
X=-8/3
is a root of
9×^2+48×+64=0?
a. Graph
9x^2 + 48x + 64 = 0
to show that
x=-8/3
is where the parabola crosses the y axis.
b. Graph
9x^2 + 48x +64 = 0
to show that the parabola's vertex is just above the value
x=-8/3
c. Substitute
x=-8/3
back into
9x^2 + 48x + 64 =0
and simplify to show that a true statement
results.
d. Substitute
x=-8/3
back into
9x^2 + 48x + 64 = 0
and simplify to show the values of
a
c
remain perfect squares.
Answer:
c. Substitute
Step-by-step explanation:
A graph of the function on the left shows the parabola touches the x-axis at x = -8/3. That is, the vertex is on the x-axis. It crosses the y-axis at y = 64.
Show a value is a rootA given solution to an equation can be verified by substituting that value into the equation an showing the result is a true statement. Here, the value x=-8/3 is a root of the given equation because that value makes the equation true.
[tex]9\left(-\dfrac{8}{3}\right)^2+48\left(-\dfrac{8}{3}\right)+64=0\\\\9\left(\dfrac{64}{9}\right)-\left(\dfrac{48\cdot8}{3}\right)+64=0\\\\64-\dfrac{3\cdot2\cdot8\cdot8}{3}+64=0\\\\64-2\cdot64+64=0\\\\0=0\qquad\text{True}[/tex]
Please help me solve this random answers will be removed
Answer:
AB-46 cm
Step-by-step explanation:
Use law of cosines
AB^2 = 24^2 + 26^2 - 2 (24)(26)cos 134
AB= 46 cm
20 PIONTSSS TO WHOEVER ANDWER THIS QUESTION !!!
Answer:
The answer would be 36cm².
Step-by-step explanation:
⇒ Two prisms are similar.
⇒ Scale factor = 3:8
⇒ The ratio of the surface area is 9:64.
⇒ So S₁ : S₂ = 9:64
⇒ S₁ : 256 = 9:64
⇒ S₁ = 36cm²
This would mean that the answer is 36 centimeters ² (squared).
Find the missing value so that the two points have a slope of 1/2.
(9, 1) and (3, y)
Please explain
Answer: -2
Step-by-step explanation:
Substituting into the slope formula,
[tex]\frac{y-1}{3-9}=\frac{1}{2}\\\\y-1=-3\\\\y=-2[/tex]
Need help with this,30 points, please help very soon, thanks
A small airplane makes a 2400 kilometer trip in 7.30 hours and makes the returned trip in six hours. If the plane travels at a constant speed wind blows at a constant rate, find the airplanes airspeed and the speed of the wind.
The speed of the airplane is 360 km/h while the speed of the wind is 40 km/h.
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Let a represent the speed of the airplane and b represent the speed of the wind, hence:
(a + b)6 = 2400
a + b = 400 (1)
Also:
(a - b)7.5 = 2400
a - b = 320 (2)
From eqn 1 and 2:
a = 360 km/h, b = 40 km/h
The speed of the airplane is 360 km/h while the speed of the wind is 40 km/h.
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help me please im in a rush
Answer:
The answers are in the image
Step-by-step explanation:
The solutions are in the image
To prove quadrilateral WXYZ is a parallelogram, Travis begins by proving △WZY ≅ △YXW by using the SAS congruency theorem.
Quadrilateral W X Y Z is shown. A diagonal is drawn from point W to point Y. Sides W Z and X Y are parallel and congruent.
Which reasons can Travis use to prove the two triangles are congruent? Check all that apply.
∠ZWY ≅ ∠XYW by the alternate interior ∠s theorem.
WY ≅ WY by the reflexive property.
∠ZWY ≅ ∠XWY by the corresponding ∠s theorem.
WX ≅ ZY by definition of a parallelogram.
WZ ≅ XY by the given.
The reasons Travis can use to prove both triangles are congruent by the SAS congruency theorem are:
∠ZWY ≅ ∠XYW by the alternate interior ∠s theorem.WY ≅ WY by the reflexive property.WZ ≅ XY by the given.What is the SAS Congruency Theorem?The SAS congruency theorem states that two triangles are congruent when they both have two pairs of corresponding congruent sides and a pair of corresponding congruent included angles.
Given the image below, we have the following proof with the statement and reasons in bracket:
WZ ≅ XY [given]
WY ≅ WY [reflexive property]
∠ZWY ≅ ∠XYW [by the alternate interior ∠s theorem]
△WZY ≅ △YXW [by the SAS congruency theorem]
Therefore, the reasons Travis can use are:
∠ZWY ≅ ∠XYW by the alternate interior ∠s theorem.WY ≅ WY by the reflexive property.WZ ≅ XY by the given.Learn more about the SAS congruency theorem on:
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Answer:
A. ∠ZWY ≅ ∠XYW by the alternate interior ∠s theorem;
B. WY ≅ WY by the reflexive property; & E. WZ ≅ XY by the given.
Step-by-step explanation: Trust Me! Answer is correct on Edge.
Good Luck! :)
Which reasons can Travis use to prove the two triangles are congruent? Check all that apply.
A. ∠ZWY ≅ ∠XYW by the alternate interior ∠s theorem B. WY ≅ WY by the reflexive property E. WZ ≅ XY by the given
Next, you will make a scatterplot. Name a point that will be on your scatterplot and describe what it represents.
The point (12, 190) means that the temperature after 12 hours is 190 degrees Celsius
How to make a scatter plot?To do this, we make use of the following points
(12, 190), (14, 201), (15, 301), (16, 305), (18, 350), (20, 40), (25, 450)
Where x represents the number of hours and y represents temperature
See attachment for the scatter plot.
The description of a pointTo do this, we make use of the point (12, 190)
This means that the temperature after 12 hours is 190 degrees Celsius
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C = 75h + 125
The equation above gives the amount C, in dollars, an electrician charges for a job that takes h hours. Ms. Sanchez and Mr. Roland each hired this electrician. The electrician worked 2 hours longer on Ms. Sanchez's job than on Mr. Roland's job. How much more did the electrician charge Ms. Sanchez than Mr. Roland?
Ms. Sanchez paid 150 dollars more than Mr. Roland.
How much more did the electrician charge Ms. Sanchez than Mr. Roland?Let's say that the electrician worked for x hours in Mr. Roland's home, then worked for (x + 2) hours in Ms. Sanchez home.
Then we need to find the difference between the linear equations:
C(x + 2) - C(x) = (75*(x + 2) + 125) - (75*x + 125)
If we simplify that, we get:
75*x + 75*2 + 125 - 75*x - 125
= 75*2 = 150
This means that Ms. Sanchez paid 150 dollars more than Mr. Roland.
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waheda purchased 8 textbooks each costing rupees 12 and 4 story books each question rupees 9 find the ratio of amounts she spent on the two types of books .
Answer:
8/3 or 2(2/3) Textbooks to storybooks
Step-by-step explanation:
Textbooks: (8 books)*(12 rupees/book) = 96 rupees
Storybooks: (4 books)*(9 rupees/book) = 36 rupees
Total is 132 rupees
Ratio: Textbook/Storybook = 96/36
96/36 = 8/3 or 2(2/3) Textbooks to storybooks
15 Points please me I'm in a rush
Using proportions, it is found that out of the next 1500 pizzas, she should expect 420 pan style pizzas.
What is a proportion?A proportion is a fraction of a total amount, and the measures are related using a rule of three.
The proportion of pan style pizzas is given as follows:
294/(284 + 313 + 159 + 294) = 0.28.
Hence, out of 1500 pizzas, this amount is equivalent to:
0.28 x 1500 = 420
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The graph of the function f(x) = (x +2)(x + 6) is shown below.
On a coordinate plane, a parabola opens up. It goes through (negative 6, 0), has a vertex at (negative 4, negative 4), and goes through (negative 2, 0).
What is true about the domain and range of the function?
The domain is all real numbers, and the range is all real numbers greater than or equal to –4.
The domain is all real numbers greater than or equal to
–4, and the r
Answer: The domain is all real numbers, and the range is all real numbers greater than or equal to –4.
Step-by-step explanation:
The domain is the set of inputs, and the range is the set of outputs.
Answer: Option A
Step-by-step explanation
The domain is the set of allowed x inputs of a function.
We can replace x with any number we want to get some output for y = f(x)
This tells us the domain is the set of all real numbers.
-----------
The range is the set of numbers y such that
In other words, we can have y = -4 or y > -4
This is because y = -4 is the lowest output possible, as indicated by the vertex point.
Abe raises sheep. In his flock, there are 42 males and 56 females. What is the ratio of males to females in simplest form?
Answer:
3:4
Step-by-step explanation:
It's males to females. so we make 42:56 simplify that we get 3:4
The diagram shows a hexagon inscribed in a circle.
Calculate the sum of the angles a, b and c.
Give a reason for your answer.
The sum of the angles, a, b and c is; 360° because, the sum measures 3 of all the equal angles in the regular hexagon.
What is the sum of all three angle Measures?It follows from the task content that the angle measures given in the task are a, b and c which are in a cyclic polygon (hexagon) in which case, the sum of all 6 angles in the hexagon is; 720.
Consequently, the sum of angle measures; a,b and c is; 720/2 = 360°.
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You are out to dinner with 10 friends (meaning there are 11 of you). The bill total is $110. You all want to split the bill evenly. How would you write this as an improper fraction?
A 110/10
B 10/111
C 11/110
D 110/11
Answer:
110/11
A
Step-by-step explanation:
divide the bill by 11 people.
Answer:
D. 110/11
Step-by-step explanation:
110 Dollars
11 people to split it with
110/11 to find the total for each person
I NEED HELP ASAP PLEASEEEE
Answer:
[tex](f-g)(x)=x^2-6x+5[/tex] dom: (-∞,∞)
[tex](\frac{f}{g})(x)=x-7+\frac{7}{x+2}[/tex] dom: (–∞,–2)u(–2,∞)
Step-by-step explanation:
[tex](f-g)(x)=f(x)-g(x)=(x^2-5x+7)-(x+2)[/tex] *distribute the negative sign into (x+2)!
[tex]x^2-5x+7-x-2\\x^2-6x+5[/tex]
a parabola (anything that begins with [tex]x^2[/tex]) will have a domain of (-∞,∞) or all real numbers!!
[tex](\frac{f}{g} )(x)= \frac{x^2-5x+7}{x+2}[/tex] use synthetic division to divide (the attached picture)
domain: Because the graph is not continuous, you have to write the domains on both sides of the asymptote which is (-∞,-2)u(-2,∞)
synthetic division:
1. take the divisor (x+2) and solve for x. x= –2 this goes in the top left corner
2. write the numbers AND their signs on the top row. if there is no number and just the variable (like [tex]x^2[/tex] ) just write 1.
3. the first number gets pulled down
4. multiply -2 by 1 and subtract it from –5. (-5-2= -7)
multiply -2 by -7 and add that to the next number in the top row which is -7. (-7 + 14=7)
5. the first number in the bottom row of numbers is the first number in the answer but with one less exponent than the dividend. **write 1 as x**
6. the last number in the bottom row, if it is not 0, is a remainder. write it as that number over the divisor. in this case the remainder is 7. so write it as [tex]\frac{7}{x+2}[/tex]
i need help again 100 pts
Answer:
1. Becky's rate of sales is 9 cups per hour
2. Mayisha's rate of sales is 10 cups per hour
3. Becky is selling 1 fewer cups per hour than Mayisha
4. Becky started with 2 fewer cups than Mayisha
Step-by-step explanation:
1. 30-12=18 18/2=9
2. 31-21=10 21-11=10
3. 10-9=1
4. 30+9=39 31+10=41 41-39=2
Answer:
Becky's rate of sales is [tex]\boxed{\sf 9}[/tex] cups per hour.
Mayisha's rate of sales is [tex]\boxed{\sf 10}[/tex] cups per hour.
Becky is selling [tex]\boxed{\sf 1\: fewer}[/tex] cup(s) per hour than Mayisha.
Becky started with [tex]\boxed{\sf 2}[/tex] fewer cups than Mayisha.
Step-by-step explanation:
Mayisha
[tex]\begin{array}{|c|c|c|c|}\cline{1-4} \sf Hours\:(x) & 1 & 2 & 3\\\cline{1-4} \sf Cups\: {left}\:(y) & 31 & 21 & 11\\\cline{1-4} \end{array}[/tex]
Becky
[tex]\begin{array}{|c|c|c|c|}\cline{1-4} \sf Hours\:(x) & 1 & 2 & 3\\\cline{1-4} \sf Cups\: {left}\:(y) & 30 & & 12\\\cline{1-4} \end{array}[/tex]
Selling at a steady rate.
To calculate the rate of sales, use the rate of change formula:
[tex]\sf Rate\:of\:change = \dfrac{change\:in\:y}{change\:in\:x}[/tex]
Therefore:
[tex]\textsf{Becky's rate of sales}=\dfrac{12-30}{3-1}=-9[/tex]
Therefore, as the number of cups reduces by 9 each hour, Becky's rate of sales is 9 cups per hour.
[tex]\textsf{Mayisha's rate of sales}=\dfrac{11-31}{3-1}=-10[/tex]
Therefore, as the number of cups reduces by 10 each hour, Mayisha's rate of sales is 10 cups per hour.
As 9 is one less than 10, Becky is selling 1 fewer cup(s) per hour than Mayisha.
As Becky had 30 cups left after 1 hour, and her rate of sales is 9 cups, then she started with 30 + 9 = 39 cups.
As Mayisha had 31 cups left after 1 hour, and her rate of sales is 10 cups, then she started with 31 + 10 = 41 cups.
As 39 is 2 less than 41, Becky started with 2 fewer cups than Mayisha.
If a line that passes through the
points (8, 10) and (4, -6) also passes through the point (b, 2b), then find the value of b?
find the area of the following
Answer:
24000 ft²
Step-by-step explanation:
Triangle PRS:b = base = PR = 240 ft
2AS = 240 ft
[tex]\sf AS = \dfrac{240}{2}\\\\ AS = 120 \ ft[/tex]
h = height = AS = 120 ft
[tex]\sf \boxed{\bf \ Area \ of \ triangle = \dfrac{1}{2}b*h}[/tex]
[tex]\sf =\dfrac{1}{2}*240*120\\\\ = 120 * 120\\\\ = 14400 \ ft^2[/tex]
Triangle PRQ:b = PR = 240 ft
3BQ = 240 ft
[tex]\sf BQ = \dfrac{240}{3}\\\\ BQ = 80 \ ft[/tex]
[tex]\sf Area \ of \ triangle \ PRQ = \dfrac{1}{2}*240*80[/tex]
= 120 * 80
= 9600 ft²
Area of the quadrilateral PQRS = area of ΔPRS + area of ΔPRQ
= 14400 + 9600
= 24000 ft²
Define the geometric sequence as a recursive function of the following five numbers.
The recursive definition of the geometric sequence is given as follows:
[tex]f(1) = \frac{1}{9}[/tex].f(n) = f(n-1) x 3.What is a geometric sequence?A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.
The nth term of a geometric sequence is given by:
[tex]a_n = a_1q^{n-1}[/tex]
In which [tex]a_1[/tex] is the first term.
The recursive definition of the geometric sequence is given as follows:
[tex]f(1) = a_1[/tex].f(n) = q x f(n - 1).For this sequence, the first term and common ratio are given as follows:
[tex]a_1 = \frac{1}{9}, q = 3[/tex].
Then the recursive definition is:
[tex]f(1) = \frac{1}{9}[/tex].f(n) = f(n-1) x 3.More can be learned about geometric sequences at https://brainly.com/question/11847927
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Simplify (5√3 − 2√5) the whole square
Answer:
95 - 20[tex]\sqrt{15}[/tex]
Step-by-step explanation:
(5[tex]\sqrt{3}[/tex] - 2[tex]\sqrt{5}[/tex] )²
= (5[tex]\sqrt{3}[/tex] - 2[tex]\sqrt{5}[/tex] )(5[tex]\sqrt{3}[/tex] - 2[tex]\sqrt{5}[/tex] )
each term in the second factor is multiplied by each term in the first factor, that is
5[tex]\sqrt{3}[/tex] (5[tex]\sqrt{3}[/tex] - 2[tex]\sqrt{5}[/tex] ) - 2[tex]\sqrt{5}[/tex] (5[tex]\sqrt{3}[/tex] - 2[tex]\sqrt{5}[/tex] ) ← distribute parenthesis
= 75 - 10[tex]\sqrt{15}[/tex] - 10[tex]\sqrt{15}[/tex] + 20 ← collect like terms
= 95 - 20[tex]\sqrt{15}[/tex]
Answer:
95 - 20√15
Step-by-step explanation:
I assume the expression is (5√3 − 2√5)^2 (?).
(5√3 − 2√5)*(5√3 − 2√5)
25√3^2 - 20√15 + 4√5^2
25*3 - 20√15 +4*5
75 - 20√15 +20
95 - 20√15
Which is the graph of the linear inequality 2x-3y < 12?
Answer:
First, transform the given equation into the slope-intercept form, y = mx + b.
2x - 3y < 12
3y > 2x - 12
y > [tex]\frac{2}{3}[/tex]x - 4
Since the equation is y > [tex]\frac{2}{3}[/tex]x - 4, first draw the graph of y = [tex]\frac{2}{3}[/tex]x - 4 with a dotted line (because it is >, not ≥) and shade the area above the dotted line.