Juanita opens a new account in the bank and deposits 7,500. The bank pays 1.2% interest compounded annually on the account. Laura makes no additional deposits or withdrawals.
We are required to find the account balance at the end of 5 years .Step 1: Calculate the compound interest earned for the first year. Interest for the first year will be: [tex]I = P × R × T= 7,500 × 1.2% × 1= 90[/tex]Step 2: Add the compound interest to the principal to find the new balance. Therefore, after the first year the balance will be 7,590. Step 3: Now, the balance of the account at the end of 5 years will be: Balance = [tex]P(1 + R/100)T= 7,500(1 + 1.2/100)5= 7,959.93.[/tex]Thus, 7,960.93 is the closest to the account balance at the end of 5 years. Therefore, option C is correct.
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PLEAS HELP I think I know the answer but im only 50% sure
x =x=x, equals
^\circ
∘
degrees
In the given diagram, the value of x is 90°
Calculating anglesFrom the question, we are to determine the value of x
In the given diagram,
Using the linear pair theorem, we can write that
x + 90° = 180°
x = 180° - 90°
x = 90°
Hence, the value of x is 90°
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A population has a mean of μ= 35 and a standard deviation of σ = 5. after 3 points are added to every score in the population, what are the new values for the mean and standard deviation?
The new values for the mean and the standard deviation are 38 and 5 respectively.
The mean of a population is given as [tex]\mu = \frac{\sum_{N}^{i}x_i}{N}[/tex] and its standard deviation is given as [tex]\sigma = \sqrt{\frac{\sum_{N}^{i}(x_i-\mu)^2}{N}}[/tex].
In the question, we are given that a population has a mean of μ = 35 and a standard deviation of σ = 5, and are asked for the new values for the mean and standard deviation when 3 points are added to every score in the population.
We let the new population formed be over the variable k.
Thus, [tex]k_i = x_i + 3[/tex], for all i from 1 to N.
Thus, the new mean can be calculated as:
[tex]\mu_k = \frac{\sum_{N}^{i}k_i}{N}\\\mu_k = \frac{\sum_{N}^{i}(x_i + 3)}{N}\\\mu_k = \frac{\sum_{N}^{i}x_i + 3N}{N}\\\mu_k = \frac{\sum_{N}^{i}x_i}{N} + 3\\\mu_k = \mu + 3\\\mu_k = 35 + 3 = 38 [Since, \mu = 35].[/tex]
Thus, the new mean is 38.
Thus, the new standard deviation can be calculated as:
[tex]\sigma_k = \sqrt{\frac{\sum_{N}^{i}(k_i-\mu_k)^2}{N}}\\\sigma_k = \sqrt{\frac{\sum_{N}^{i}(x_i + 3-38)^2}{N}}\\\sigma_k = \sqrt{\frac{\sum_{N}^{i}(x_i-35)^2}{N}}\\\sigma_k = \sqrt{\frac{\sum_{N}^{i}(x_i-\mu)^2}{N}} [Since, \mu = 35]\\\sigma_k = \sigma = 5.[/tex]
Thus, the new standard deviation is 5.
Thus, the new values for the mean and the standard deviation are 38 and 5 respectively.
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help!
Find the missing side lengths. Leave the answers as radicals in simplest form.
Answer:
b = 3.5
a = 7
Step-by-step explanation:
Hello!
This triangle is a 30°-60°-90° triangle, as the missing angle is 30° and the other two angles are 60° and 90°.
There are some important Rules:
The leg that is opposite to the 30° angle is half of the hypotenuse. The leg that is opposite to the 60° angle is the length of the leg opposite to the 30° multiplied by [tex]\sqrt3[/tex].We can first solve for the leg that is opposite to the 30° angle.
Since [tex]\frac{7\sqrt3}{2}[/tex] is [tex]b\sqrt3[/tex]:
[tex]\frac{7\sqrt3}{2} = b\sqrt3[/tex][tex]\frac72 = b[/tex]The length of b is 3.5.
We can multiply 3.5 by 2 to find the length of a.
[tex]\frac a2 = b[/tex][tex]\frac a2 = \frac72[/tex][tex]a = 7[/tex]The length of a is 7.
Three schools have a chess tournament. Four players come from each school. Each player plays three games against each player from the other schools, and plays one game against each other player from his or her own school. How many games of chess are played
Using combinations, the number of games of chess played are 312 if each player plays three games against each player plays three games against each player from the other schools, and plays one game against each other.
According to the questions,
Three schools have a chess tournament and four players come from each school. Each player plays against each other from his/her own school.
Formula for Combinations [tex]nC_{r}[/tex] = [tex]\frac{(n-r)!}{r!}[/tex]
[tex]4C_{2}[/tex] = [tex]\frac{4*3}{1*2}[/tex]
= 6
They are 6 ways to select two schools. Given those 2 schools they are
[tex]4^{2}[/tex] = 16 ways to pair up players 1 from each school. They are 3 games played by each of those 3 pairs.
The total number of games played against other school.
6×16×3 = 288.
Similarly using combinations we can find the number of games played against schoolmates. To find this 4 combinations of 2 is 6 ways to select a pair from the 4 people at given school. They are four schools and they play one game each.
6×4×1 = 24
Thus using combinations, the number of games played against schoolmates is 24.
In order to find the number of games of chess are played only if we add the total number of games played against other school and the total number of games played against schoolmates.
288+24 = 312
Hence, using combinations, the number of games of chess played are 312 if each player plays three games against each player plays three games against each player from the other schools, and plays one game against each other.
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Use the drop-down menus to complete the proof. by the unique line postulate, you can draw only one segment,
The reflection of BC over I is shown below.
What is reflection?A reflection is a mapping from a Euclidean space to itself that is an isometry with a hyperplane as a set of fixed points; this set is known as the reflection's axis (in dimension 2) or plane (in dimension 3). A figure's mirror image in the axis or plane of reflection is its image by reflection.See the attached figure for a better explanation:
1. By the unique line postulate, you can draw only one line segment: BC
Since only one line can be drawn between two distinct points.2. Using the definition of reflection, reflect BC over l.
To find the line segment which reflects BC over l, we will use the definition of reflection.3. By the definition of reflection, C is the image of itself and A is the image of B.
Definition of reflection says the figure about a line is transformed to form the mirror image. Now, the CD is the perpendicular bisector of AB so A and B are equidistant from D forming a mirror image of each other.4. Since reflections preserve length, AC = BC
In Reflection the figure is transformed to form a mirror image.Hence the length will be preserved in case of reflection.Therefore, the reflection of BC over I is shown.
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The question you are looking for is here:
C is a point on the perpendicular bisector, l, of AB. Prove: AC = BC Use the drop-down menus to complete the proof. By the unique line postulate, you can draw only one segment, Using the definition of, reflect BC over l. By the definition of reflection, C is the image of itself and is the image of B. Since reflections preserve , AC = BC.
A ball inside of a cube has a volume of 113 cubic inches. If each side of the cube measures 12.6 inches, what is the volume of air inside the cube
The volume of air inside the cube is 1887.376 cubic inches
What is Volume?The volume of a shape or an object is the amount of space in the object
How to determine the volume of air inside the cube?The given parameters are:
Volume of the ball = 113 cubic inchesThe side length of the cube = 12.6 inchesThe volume of the cube is calculated using
Volume = (Side length)^3
Substitute 12.6 for Side length
Volume = 12.6^3
Expand the exponent
Volume = 12.6 * 12.6 * 12.6
Evaluate the product
Volume = 2000.376
The volume of air inside the cube is calculated using
Volume of the air = Volume of the cube - Volume of the ball
So, we have
Air = 2000.376 - 113
Evaluate
Air = 1887.376
Hence, the volume of air inside the cube is 1887.376 cubic inches
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For a moving object, the force acting on the object varies directly with the object's acceleration. When a force of 10 N acts on a certain object, the acceleration of the object is 5 meters per second². If the acceleration of the object becomes 4 meters per second², what is the force?
Answer:
8
Step-by-step explanation:
F=ma
10=5m
4m=10*4/5
4m=8
So the answer is 8
Zoe keeps track of the miles per gallon her car gets per week. she has accumulated the following data: (1,24), (2,24,38), (3,24,76) (4,25,14) what is the common difference or ratio?
The common difference is (1,0.38).
An arithmetic progression (AP) is a sequence where the differences between every two consecutive terms are the same. In this type of progression, there is a possibility to derive a formula for the nth term of the AP. For example, the sequence 2, 6, 10, 14, … is an arithmetic progression (AP) because it follows a pattern where each number is obtained by adding 4 to the previous term.
x1 = 1 , y1 = 24
x2 = 2, y2 = 24.38
x3 = 3 , y3 = 24.76
x4 = 4 , y4 = 25.14
Thus the common difference equals :-
x2 - x1 = x3 - x2 = x4 - x3 = 1
y2 - y1 = y3 - y2 = y4 - y3 = 0.38.
Thus the common difference is (1,0.38).
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Becca's car engine has a capacity of 3.6 quarts and
contains 1.2 quarts of engine oil. One bottle of engine oil is
0.5 quart. Approximately how many bottles of engine oil
does Becca need to completely fill her car engine?
Becca needs approximately 5 bottles of engine oil to completely fill her car engine.
How to determine the number of bottles of engine oil?Since Becca's car engine has a capacity of 3.6 quarts and contains 1.2 quarts of engine oil, the remaining space left in her car engine is given by:
Space = 3.6 - 1.2
Space = 2.4 quarts.
By applying direct proportion, we have:
1 bottle = 0.5 quart.
x bottles = 2.4 quarts.
Cross-multiplying, we have:
0.5x = 2.4
x = 2.4/0.5
x = 4.8 ≈ 5 bottles.
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can someone explain?
Answer: K
Step-by-step explanation:
I. Correct. When t=0, h=c, so if you alter the value of c, the h-intercept changes.
II. Correct, the maximum value of [tex]-at^2 +bt[/tex] will stay the same, but you are changing c, which is the amount you are always adding to it, meaning the maximum will change.
III. Correct. If you plug into the quadratic formula setting h=0, it is easy to see changing the value of c will change the solutions.
The correct statement regarding the quadratic function is:
K. I, II and III.
What is a quadratic function?A quadratic function is given according to the following rule:
[tex]y = ax^2 + bx + c[/tex]
If a > 0, it has a maximum value, and if a < 0, it has a minimum value.
The extreme value is [tex](x_v,y_v)[/tex], in which:
[tex]x_v = -\frac{b}{2a}[/tex][tex]y_v = -\frac{\Delta}{4a}[/tex][tex]\Delta = b^2 - 4ac[/tex]The solutions are:
[tex]x_1 = \frac{-b + \sqrt{\Delta}}{2a}[/tex][tex]x_2 = \frac{-b - \sqrt{\Delta}}{2a}[/tex]In this problem, we have a function h(t). Changing the coefficient c, the h-intercept h(0) changes. Looking at the formulas in the bullet point, the value of [tex]\Delta[/tex] changes, meaning that both the maximum value [tex]y_v[/tex] and the t-intercepts [tex]t_1[/tex] and [tex]t_2[/tex] will change, so option K is correct.
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When calculating correlation and regression both sets of data must be __________
When calculating correlation and regression both sets of data must be Statistical.
According to the statement
we have to find the type of data when we calculate the correlation and regression both sets.
so, The difference between these two statistical measurements is that correlation measures the degree of a relationship between two variables (x and y), whereas regression is how one variable affects another.
And when we calculate both then data sets must be a statistical data. because correlation summarizing direct relationship between two variables and regression predict or explain numeric response. So, without statistical data this is not possible to calculate correlation and regression both sets.
so, When calculating correlation and regression both sets of data must be Statistical.
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What was the purpose of the coordinate graphing system described by Descartes in his book Discourse on Method?
O to use algebraic methods to solve geometric problems
O to prove the universe was Sun-centered
O to represent equations for the queen of Sweden
O to prove his own existence
The purpose of the coordinate graphing system described by Descartes in his book "Discourse on Method" is to use algebraic methods to solve geometric problems. That is option A.
What is coordinate graphing system?The coordinate graphing system is used on graphical systems to describe the relationship or location between two points on different axes such as X and y axis.
According to Descartes in his book "Discourse on Method" he developed a connection between Algebra and geometry.
Therefore, the main purpose for the coordinate graphing system is to use algebraic methods to solve geometric problems.
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Answer:
The answer that you are looking for is A.
Have a great day!
Step-by-step explanation:
Please mark me brainliest!
2 quick algebra 1 questions for 50 points!
Only answer if you know the answer, quick shout-out to Subtomex0, tysm for the help!
Answer:
t = 60/n
Step-by-step explanation:
The original equation we know is y = k/n
Since 12 people can assemble the set in 5 hours, when y is 5, n will be 12.
We can now input that value into the equation.
--> 5 = k/12
--> 5(12) = k/12 (12)
--> 60 = k
--> k = 60
The equation to represent the situation can be written as:
t = 60/n
and that is our final answer!
12 people can assemble in 5hours
So
y=k/x12=k/5k=60Equation
y=60/xOr
t=60/nslope intercept form of 3x+2y=7
Answer:
y = -1.5x + 3.5
Step-by-step explanation:
Slope intercept form is y=mx+b.
3x + 2y = 7
2y = -3x + 7
y = -1.5x + 3.5
Answer:
-3/2x+7/2=y
Step-by-step explanation:
Find the volume of the composite figure. Round to the nearest tenth if necessary.
The volume of the composite figure shown in the picture is equal to 375 cubic meters.
What is the volume of the composite figure?
The volume is the space occupied by a solid, the volume of the composite figure is sum of the volumes of the two elements, the one is a square prism and the other, a triangular prism. The volume of the entire figure is:
V = (5 m)² · (13 m) + (1/2) · (5 m)² · (4 m)
V = 375 m³
The volume of the composite figure shown in the picture is equal to 375 cubic meters.
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For every 5 employees there must be 3 supervisors. if there are a total company size of 160 people how many supervisors are needed
Answer:
Step-by-step explanation:
Solve the equation below by factorising.
2m? - 11m + 5 = 0
Answer:
m = [tex]\frac{1}{2}[/tex] , m = 5
Step-by-step explanation:
assuming you mean
2m² - 11m + 5 = 0
consider the product of the factors of the m² term and the constant term which sum to give the coefficient of the m- term
product = 2 × 5 = 10 and sum = - 11
the factors are - 10 and - 1
use these factors to split the m- term
2m² - 10m - m + 5 = 0 ( factor the first/second and third/fourth terms )
2m(m - 5) - 1(m - 5) = 0 ← factor out (m - 5) from each term
(m - 5)(2m - 1) = 0 ← in factored form
equate each factor to zero and solve for m
2m - 1 = 0 ⇒ 2m = 1 ⇒ m = [tex]\frac{1}{2}[/tex]
m - 5 = 0 ⇒ m = 5
Find the surface area of the prism. Round to the nearest tenth if necessary. please help!!
Answer:
72
Step-by-step explanation:
This shape is a prism; it's a 3-D shape with 6 sides. Basically, it's a box.
All 6 sides are rectangles.
Surface area means that we'll find the area of all 6 rectangles and add them up.
There's a front and back, left and right, and a top and bottom.
The area of a rectangle is length×width or base×height.
The front and back are identical.
Area = length×width
Area = 6×3 = 18
Since the front and back are the same, two of the rectangles have area = 18.
The left and right are the same:
Area = 3 × 2
Area = 6
Two faces have area = 6.
The top and bottom are the same.
Area = 6 × 2
Area = 12
Again, two faces have area = 12.
To find the total surface area, add up all 6 areas.
A =18+18+6+6+12+12
A = 72
Last-Minute Shopper #1 paid $102 for 3 gizmos and
6 thingamajigs. Last-Minute Shopper #2 paid $179
for 5 gizmos and 11 thingamajigs. Assume they both
shopped at the same store and bought the same
brands and model numbers, and then answer the
questions below.
a) How much did each gizmo cost?
b) How much did each thingamajig cost?
The cost of one gizmo is $18.
The cost of one thingamajigs is $9
What are the linear equations that represent the question?3g + 6t = 102 equation 1
5g + 11t = 179 equation 2
Where:
g = cost of one gizmo t = cost of one thingamajigs.What is the cost of one gizmo and thingamajigs?Multiply equation 1 by 5 and equation 2 by 3
15g + 30t = 510 equation 3
15g + 33t = 537 equation 4
Subtract equation 3 from equation 4
3t = 27
t = 27 / 3
t = $9
Substitute for t in equation 1
3g + 6(9) = 102
3g + 54 = 102
3g = 102 - 54
3g = 48
g = 48 / 3
g = $18
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Sheree’s brother gave samuel his collection of stamps when she left for college. at that time, the value of the collection was $420. eight years later, the stamp collection was worth $980. what is the rate of change?
The rate of change of stamp collection was $57.5 per year.
Rate is comparison of two related quantities.
Often the second quantity is time (per second, per hour, etc) but it can be anything.
Can be in the style "this per that" or as a single number calculated using division.
Example: Sam makes 3 pancakes every 6 minutes, that is a rate of:
• 3 pancakes per 6 minutes
• 0.5 pancakes per minute
• 30 pancakes per hour
• an hourly rate of 30
By formula the rate of change = Change in cost/ Time taken
=( $980 - $420)/ 8years
= $460/ 8 years
= $57.5 per year
Thus the rate of change of stamp collection was $57.5 per year.
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The edges of a cube increase at a rate of 3 cm/s. How fast is the volume changing when the length of each edge is 40 cm?
Answer:
14400 cm³/s
Step-by-step explanation:
Find the rate of change of volume in terms of edge length, and evaluate the expression for the given conditions.
Rate of change of volumeV = s³ . . . . volume in terms of edge length (s)
dV/dt = 3s²·ds/dt . . . . . . derivative of volume with respect to time
For the given values of s and ds/dt, this is ...
dV/dt = 3(40 cm)²(3 cm/s) = 14400 cm³/s
3. Find the missing side lengths. Leave the answers as radicals in simplest form.
Answer:
x = y = 6.5[tex]\sqrt{2}[/tex]
Step-by-step explanation:
the triangle is isosceles, both base angles are 45° then the 2 legs are congruent , that is x = y
using the sine ratio in the right triangle and the exact value
sin45° = [tex]\frac{\sqrt{2} }{2}[/tex] , then
sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{13}[/tex] = [tex]\frac{\sqrt{2} }{2}[/tex] ( cross- multiply )
2x = 13[tex]\sqrt{2}[/tex] ( divide both sides by 2 )
x = y = 6.5[tex]\sqrt{2}[/tex]
Create a coordinate proof to show that the two triangles are congruent by the SSS Triangle Congruence Theorem.
For a person to be able to create a coordinate proof to show that the two triangles are congruent by the SSS Triangle Congruence Theorem one can simply use the distance formula.
How can the distance formula prove SSS Triangle Congruence Theorem?Given that the distance formula =
[tex]\sqrt{(x_{2} -x_{1})^{2} + (y_{2} - y_{1}^{2} )}[/tex]
Let say that Angle ABC has the vertices of A (-4, -2), B (-5,1). C (0,2) and Angle DEF has the vertices of D (7, -4), E (4,-5), F (3,0)
So lets prove it:
AC = [tex]\sqrt{(x_{2} -x_{1})^{2} + (y_{2} - y_{1}^{2} )}[/tex]
=[tex]\sqrt{(-4-0)^2 + (-2-2)^2}[/tex]
=[tex]\sqrt{32}[/tex]
= 4[tex]\sqrt{2}[/tex]
Do the same for DF:
DF = [tex]\sqrt{(x_{2} -x_{1})^{2} + (y_{2} - y_{1}^{2} )}[/tex]
= [tex]\sqrt{(7-3)^2 + (-4-0)^2}[/tex]
=[tex]\sqrt{32}[/tex]
= 4[tex]\sqrt{2}[/tex]
Looking at the above, one can see the values are the same and as such this proves that AC is the same to DF. If you do the same for the other part of the angles, you will see that they are congruent.
Therefore, For a person to be able to create a coordinate proof to show that the two triangles are congruent by the SSS Triangle Congruence Theorem one can simply use the distance formula.
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Consider the series . what is the truncation error for s3? 0.002 0.008 0.992 0.998
The truncation error for s3 is 0.008
What is Truncation error?The truncation error serves as the difference between a truncated value as well as the actual value.
This truncated quantity can be a numeral having a fixed number of allowed digits.
Therefore the value of S_3=0.008
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[tex]\sqrt{x}[/tex][tex]\sqrt{x}[/tex]4-[tex]\sqrt{x}[/tex][tex]\sqrt{x}[/tex]7 -[tex]\sqrt{x}[/tex][tex]\sqrt{x}[/tex]4+[tex]\sqrt{x}[/tex]7 +[tex]\sqrt{x}[/tex]2
[tex]4x - 7x - 4x + 7 \sqrt{x} + \sqrt{x} [/tex]
[tex] - 7x + 8 \sqrt{x} [/tex]
what is the transformation happening
A. A 180 degree clockwise rotation about th origin follows by a translation 1 unit to right
B. A 180 degree clockwise rotation about the origin follows by a translation 1 unit to left
Answer:
A
Step-by-step explanation:
The rule for a 180 degree clockwise rotation is (-x, -y). After applying this to the figure, it must be translated one unit right to match the image.
x - 3y = 9, complete the ordered pair (12, ).
Answer:
(12,1)
Step-by-step explanation:
We know that ordered pairs are in the format of (x,y).
This means in that (12, __) 12 is our x coordinate. Plugging 12 into the equation as x we get:
[tex]12-3y=9\\-3y=9-12\\-3y=-3\\y=1[/tex]
Therefore our answer is (12,1) as we plug y back into our coordinate (x,y).
Answer:
(12,1)
Step-by-step explanation:
In the ordered pair, x=12
plug 12 back in the equation
12-3y=9
-3y=-3
3y=3
y=1
FIND THE SURFACE AREA PLSS
Answer:
BrainlyMidIsBusy Sucks
Working her way through college kathy works two part time jobs for a total of 22 hours a week. job a pays $6.20 per hour, and job b pays $6.50 per hour. how many hours did she work at each job the week that she made $140.60? (round to two decimal places if necessary.)
Using Algebraic equation, Kathy worked 22 hours at job A and 12 hours at job B, the week she made US $ 140.60.
Let's review all the information given for solving this question:
Rate per hour of Job A = US$ 6.20
Rate per hour of Job B = US$ 6.50
Earnings received by Kathy during the week = US$ 140.60
Total time worked by Kathy during the week = 22hours
Hours at job A = x
Hours at job B = 22 -x
In order to find how many hours Katy worked at each job: This is the Algebraic equation that we'll use:
6.20x + 6.50 (22 - x) = 140.60
6.20x + 143- 6.50x = 140.60
-0.3x = 140.60 - 143
-0.3x = - 2.4
x = -(2.4)/-(0.3)
x = 14.3/0.3 = 8 (Dividing by 0.3 at both sides)
Kathy worked 8 hours at job A.
Hours at job B = 22 - x. Put x = 11 we get
Hours at job B = 22 -11
= 11
Hence, using Algebraic equation Kathy worked 22 hours at job A and 12 hours at job B, the week she made US $ 140.60.
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Solve for x |2x+1|=-13
Answer:
no solution
Step-by-step explanation:
Your question is in the form:
absval of something
= a NEGATIVE number
The absolute value is always positive. So it can never be negative.
There are no values that x can be that will make this math sentence true.
It's not really a trick question, but the course/teacher/book/program just wants you to recognize that an absolute value CANNOT be negative.