Answer:
25
Step-by-step explanation:
j(k + 2)
5(3 + 2)
5(5)
25
When you were born, your parents opened an investment account in your name and deposited $500 into the account. The account has earned an average annual rate of return of 10 percent compounded monthly. Today, the account is valued at $36,911.22. How old are you? a. 46 years old b. 35 years old c. 32 years old d. 43 years old
\((36911.22/500) = 12x ln(1 + r)ln(36911.22/500) = 12x(0.0083333333)ln(36911.22/500) = 0\).0083333333x
Multiply both sides by 1000 and divide both sides by 0.0083333333 to get: x = 35.
Let x be the age of the person. When the person was born, their parents opened an investment account in their name and deposited $500 into the account.
Let A be the value of the investment account when the person is x years old.
The interest rate is 10% compounded monthly. Then, the monthly interest rate is
\(:r = (10/12)/100 = 0.0083333333\)
The account has earned interest for 12 * x months.
Hence, we have:
\(A = 500(1 + r)^(12x)\)
Now, we can solve for x.
A = 36911.22.
Hence:\(36911.22 = 500(1 + r)^(12x)\)
Take the natural logarithm of both sides to solve for x.
\(ln(36911.22/500) = 12x ln(1 + r)ln(36911.22/500) = 12x(0.0083333333)ln(36911.22/500) = 0.0083333333x\)
Multiply both sides by 1000 and divide both sides by 0.0083333333 to get: x = 35.
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Whats -4 + 3x=8x-9+3
Answer:
=2/5
Step-by-step explanation:
Find a.
Round to the nearest tenth:
2 cm
150
105
a = [? ]cm
Law of Sines: sin A sin B
sin C
b
Answer:
1.8 cm to the nearest tenth.
Step-by-step explanation:
The angle opposite side a = 180 - 105 - 15 = 60 degrees.
By the Sine Rule:
a / sin 60 = 2 / sin 105
a = 2 * sin60/ sin 105
= 1.79315
Find the slope and y-intercept of the line. 1 y = 5x - 9 1 o 3:9 و { 1 0 -9.5 059 9. 5
The line is given as
\(y=\frac{1}{5}x-9\)The slope is 1/5
The y-intercept is -9
Therefore, the first option is the correct one
Mina says triangle A with angles
measuring 34° and 57° is similar to
triangle B with angles measuring 57°
and 89º. Is Mina correct?
Answer:
Yes, Mina is correct
Step-by-step explanation:
Let the triangles be A and B
Given
Triangle A:
\(Angles = 34, 57\)
Triangle B:
\(Angles = 89, 57\)
Required
Is Mina's claim correct?
First, we calculate the third angle in both triangles.
For A:
\(Third\ Angle = 180 - 34 - 57\)
\(Third\ Angle = 89\)
For B:
\(Third\ Angle = 180- 89 - 57\)
\(Third\ Angle = 34\)
For triangle A, the angles are: 34, 57 and 89
For triangle B, the angles are: 34, 57 and 89
Since both triangles have the same angles, then by the postulate of AAA (Angle-Angle-Angle), the triangles are similar.
The local pizza placed has placed a new circular sign above the restaurant. The circumference of the sign is 37.68 feet, and the diameter is 12 feet. Which expression best represents the value of it? * The local pizza place has placed a new circular sign above the restaurant. The circumference of the sign is 37.68 feet, and the diameter is 12 feet. Which expression best represents the value of pi?
A.37.68/6
B.37.68/12
C.12/37.68
D.6/37.68
Answer:
B
Step-by-step explanation:
The circumference of a circle can be described as the linear distance round the circle
The circumference of a circle = 2πr or πD
π = 3.14
r = radius
d = diameter
the diameter is the straight line that passes through the centre of a circle and touches the two edges of the circle.
π = circumference / 2r or circumference / D
37.68 / 12
Anna invests $875 into an account and receives 4% simple interest for 24 months. How much simple interest will she earn??
Answer:
$70
Step-by-step explanation:
1. I = PRT
2. Sub in what you know into the equation:
I = $875 (principal amount) x 0.04 (4%) x 2 (24 months = 2 years)
3. 875 x 0.04 x 2 = 70
4. Anna will receive $70 in simple interest
Answer:
£70
Step-by-step explanation:
simple interest (I) is calculated as
I = \(\frac{PRT}{100}\)
where P is principal, R is rate of interest and T is time in years.
Note that 24 months = 2 years, thus
I = \(\frac{875(4)(2)}{100}\) = \(\frac{7000}{100}\) = £70
Graph the equation y=5-x
Answer:(1,4) (2,3) (3,2) (4,1) (5,0)
Step-by-step explanation:
Roberto' employer offer a liding paid vacation. When he tarted work, he wa given three paid day of vacation. For each ix-month period he tay at the job, hi vacation i increaed by two day. Let x repreent the number of 6-month period worked and y repreent the total number of paid vacation day. Write an equation that mode the relationhip between thee two variable
An equation that mode the relationship between thee two variable is y=2x+3 .
Let x represent the number of 6-month period worked
Let y represent the total number of paid vacation day
According to the question,
When he started work, he was given three paid day of vacation. For each six-month period he pay at the job, his vacation is increased by two day.
Each year has 2 six-month periods. After 4.4 years Roberto will have worked 8.8 six-month periods. He will have been given vacation days for each of the 8 whole working periods he has completed. x=8 y=2*8+3 y=19
An equation that mode the relationship between thee two variable is y=2x+3 (Total vacation time equals 2 days times x plus the 3 days he was given at the start).
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Find the Average Rate of Change between each pair of points.
1) (-10, 7), (6, 20)
Answer:
13/16
Step-by-step explanation:
Instincts are ________
learned over time
conditioned responses
planned ahead of time
inborn responses
Answer:
I hope they're not learned overtime haha (inborn responses)
Step-by-step explanation:
Save ProjectWhen we create a rectangle in ANSYS in the geometry step, we are not affecting the mathematical model.A) TrueB) FalseThere are three elements needed to define a boundary value problem:
1. Governing equations
2. Domain
3. Boundary conditions
The rectangle in ANSYS defines the domain. Hence we are affecting the boundary value problem (i.e. the mathematical model) when we create the rectangle in ANSYS.
A) True. When we create a rectangle in ANSYS in the geometry step, we are defining the domain of the problem, which is an essential component of the mathematical model.
A) True. When we create a rectangle in ANSYS in the geometry step, we are defining the domain of the problem, which is an essential component of the mathematical model. The geometry defines the shape and size of the domain, which directly affects the governing equations and boundary conditions that will be applied to that domain. Therefore, creating a rectangle in ANSYS geometry step will have an impact on the mathematical model.
As for the "Save project " part of the question, saving the project in ANSYS does not affect the mathematical model in any way. Saving the project simply stores the information about the simulation, including the geometry, materials, loads, and boundary conditions, among others, in a file that can be retrieved and modified later. It does not alter the mathematical model, and the same solution can be obtained from the saved project at a later time.
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Find the result of |x-1|=2
The absolute value of x minus one is equal to two. Therefore, x must be either one greater than two (x = 3) or one less than two (x = 1).
One less than x results in a value of two in absolute terms. As a result, x minus 1 has an absolute value of 2, which is a positive number. The separation of an integer from zero is its absolute value. As a result, x minus 1 is two units from zero in absolute terms. As x minus one has an absolute value of two, its real value must either be two or a negative two. That is to say, x must either be one more than two (x = 3) or one less than two (x = 1).In order to confirm this, let's look at a few examples. If x = 3, then |x - 1| = |2 - 1| = |1| = 1 which is not equal to two. Therefore, x = 3 is not the answer we are looking for. On the other hand, if x = 1, then |x - 1| = |1 - 1| = |0| = 0 which is not equal to two. Therefore, x = 1 is also not the answer we are looking for. The only two possible solutions for the equation |x - 1| = 2 are x = 3 and x = 1. Therefore, the result of |x - 1| = 2 is that x must be either one greater than two (x = 3) or one less than two (x = 1)
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factorise
10ax²+14a²x
Answer:
2ax(5x+7a) is your answer ☺️☺️☺️
i hope so it help you .........
awscalculate mse for each region. is the variability·around the fitted regression line approxi- mately the same for the four regions? discuss.
In order to calculate the Mean Squared Error (MSE) for each region, you will need to have a dataset with values for each region.
Once you have this dataset, you can calculate the MSE using the following formula:
MSE = 1/n x ∑(yi - ŷi)²
where n is the number of data points in the region, yi is the actual value for the ith data point, and ŷi is the predicted value for the ith data point. Once you have calculated the MSE for each region, you can compare the values to determine if the variability around the fitted regression line is approximately the same for each region.
If the MSE values are similar for each region, then the variability around the fitted regression line is approximately the same. If the MSE values are different for each region, then the variability around the fitted regression line is not the same for each region.
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A teacher interested in determining the effect of a new computer program on learning to read conducted a study. One hundred students were randomly assigned to one of tu
groups. The first group used the computer program while the second group did not. Both groups were tested to determine how much their reading levels improved. The results for the two groups were compared. What kind of study is this?
Answer:
This is an experiment because a treatment was applied to a group.
Step-by-step explanation:
There are two groups, The first group used the computer program while the second group did not therefore this is an experiment. An experiment involves changing an independent variable to see how it affects a dependent variable. The dependent variable in this case determining the effect of a new computer program on learning while the independent variables was testing with the computer program and not testing with the program.
PLEASE HELP ME, i'll mark brainlist (moderators: STOP DELETING MY STUFF BROS)
I'M DUM DUM SO PLEASE HELP BROSKI'S.
Answer:
Both angles are 51°
Step-by-step explanation:
By the Vertical Angles Theorem, both angles are congruent.
Step 1: Set up equation
68 - x = 3x
Step 2: Solve for x
68 = 4x
x = 17
Step 3: Find angles
68 - 17 = 51°
Answer:
4x=68
x=17
51°
Step-by-step explanation:
Parallel lines r and s are cut by two transversals, parallel lines t and u. How many angles are alternate interior angles with angle 9?
Answer:
3
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
4 - 5/3x - 7 = 4 please help solve
Step-by-step explanation:
multiply through by the LCM=3x-7
4(3x-7)-5=4(3x-7)
12x-28-5=12x-28
The integer coefficient of x on both sides of the equation=+12 so there's no integer solution for the equation
An uncooked gingerbread cookie is y centimeters long. After it is baked, the length of the
cookie increases by 25%. Which expression best represents the new length of the
cookie?
A. 0.25y
B. 0.75y
C. 1.25y
D. 12.5y
Answer:
I think the answer is C
Step-by-step explanation:
If you have a normal ginger bread cookie, its full size would be 100%. So, if you add the first 25%, 1.25%
The expression best describes the new length of the cookie will be 1.25y.
What is an expression?Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
Given that:-
An uncooked gingerbread cookie is y centimetres long. After it is baked, the length of the cookie increases by 25%.The initial length of the cookie is y after baking the length is increased by 25%
= y + 25%y
= y + ( 25 / 100 ) y
= y + 0.25 y
= 1.25 y
Therefore the expression best describes the new length of the cookie will be 1.25y.
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2n+3pm=7px solve for x
Answer:
x is being multiplied by 7p so to find x you need to have it alone on one side of the problem, so you could divide both sides by 7p, making it look like 2n+3pm/7p=x (simplify if needed)
Step-by-step explanation:
Claim: The standard deviation of pulse rates of adult males is more than 12 bpm. For a random sample of 141 adult males, the pulse rates have a standard deviation of 13.4 bpm. Find the value of the test statistic.
The value of the test statistic is 1.177.
What is test statistic?
A test statistic is a numerical summary of sample data that is used in hypothesis testing. It is used to assess the strength of evidence against a null hypothesis by comparing the observed data to what would be expected if the null hypothesis were true.
To find the value of the test statistic, we need to use the formula:
test statistic = (sample statistic - hypothesized parameter) / (standard error of the sample statistic)
In this case, the hypothesized parameter is the standard deviation of pulse rates of adult males, which is stated to be more than 12 bpm. So, we have:
hypothesized parameter: σ > 12 bpm
sample size: n = 141
sample standard deviation: s = 13.4 bpm
To calculate the standard error of the sample standard deviation, we use the formula:
standard error of s = σ / √n
Since we don't know the value of σ, we will use the sample standard deviation s as an estimate for it:
standard error of s = s / √n = 13.4 / √141 = 1.126
Now, we can plug in the values into the formula for the test statistic:
test statistic = (s - σ) / (standard error of s)
= (13.4 - 12) / 1.126
= 1.177
Therefore, the value of the test statistic is 1.177.
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Find the average quarterly loads for the rest of the years.
Find the quarterly seasonal indices by dividing the actual quarterly loads by the average quarterly loads for a year. For example, for Quarter 1, Year 1, the seasonal index is
To find the average quarterly loads for the rest of the years, you can use the formula below:
Average Quarterly Load = Total Annual Load 4 For example, let's say the total annual load for Year 1 is 800.
To find the average quarterly loads for Year 1, we would divide 800 by 4 to get an average quarterly load of 200. Then, you can use this average quarterly load to find the seasonal indices for each quarter of each year.To find the seasonal index for a given quarter and year, you would divide the actual quarterly load by the average quarterly load for that year.
For example, let's say the actual load for Quarter 1, Year 1 is 240. To find the seasonal index for this quarter and year, we would divide 240 by 200 to get a seasonal index of 1.2. You would repeat this process for each quarter and year to find the seasonal indices for all quarters and years.
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A football team scored a total of 50 points in one game. They scored 14 times. The scoring
was made up of touchdowns (6 points each), field goals (3 points each), and PATS (1 point
each). They had 3 more touchdowns than field goals. How many of each type of score did the
team have?
Answer:
Touchdowns: 6
Field goals: 3
PATS: 5
Step-by-step explanation:
6*6 = 36
3*3 = 9
5*1 = 5
9+5+36 = 50 points
6+3+5 = 14 scored times
Answers:
6 touchdowns (TD)
3 field goals (FG)
5 points after touchdown (PAT)
===============================================
Explanation:
Acronyms used in football
PAT = point after touchdownTD = touchdownFG = field goalDefine the following variables
x = number of TDsy = number of FGsz = number of PATs"They had 3 more touchdowns than field goals", so,
TD = FG + 3
x = y + 3
They scored 14 times which means we can say
x+y+z = 14
Let's look at the point breakdown per type of score
TDs give 6 points each. Scoring x of them gives 6x pointsFGs give 3 points each. Scoring y of them gives 3y pointsPATs give 1 point each. Scoring z of them gives 1z pointsThen we can add up those expressions to get us to 6x+3y+1z = 50 points total. This is the same as saying 6x+3y+z = 50.
--------------------------
Here's our system of equations
x = y+3
x+y+z = 14
6x+3y+z = 50
Let's replace each x with y+3 in the second equation. Then solve for z.
x+y+z = 14
y+3+y+z = 14
2y+z = 14-3
2y+z = 11
z = 11-2y
Now replace every x with y+3 in the third original equation
6x+3y+z = 50
6(y+3)+3y+z = 50
6y+18+3y+z = 50
9y+z = 50-18
9y+z = 32
Then plug in z = 11-2y and solve for y
9y+z = 32
9y+11-2y = 32
7y+11 = 32
7y = 32-11
7y = 21
y = 21/7
y = 3 is the number of FGs scored
Use this to find z
z = 11-2y
z = 11-2(3)
z = 11-6
z = 5 is the number of PATs scored
Now let's find x
x = y+3
x = 3+3
x = 6 is the number of TDs scored
--------------------------
Checking the answers:
x+y+z = 6+3+5 = 9+5 = 14 times they scored
6x+3y+z = 6*6+3*3+5 = 36+9+5 = 50 points scored
There are 3 more TDs than FGs since x = y+3 leads to 6 = 3+3 which is a true statement.
All three original equations we set up for the system of equations are true. Therefore, the final answers are confirmed.
An isosceles triangle has base 56 mm and
perpendicular height 45 mm
45 mm .
Work out the perimeter of the large triangle.
THE BASE OF THE LARGE TRIANGLE IS 168 Give your answer in mm.
Your final line should say, perimeter = ... m
Answer:
Step-by-step explanation:
Draw the altitude from the vertex angle to the base. You have two congruent, right triangles. The hypotenuse of each triangle is
√[(56/2)²+45²] = √[28²+45²] = √2809 = 53 mm
perimeter of larger triangle = 2×53 + 56 = 162 mm
PLEAS HELP ASAP 50 POINTS IF RIGHT: A landscaper is creating a bench for a pool deck. A model of the bench is shown in the image.
A rectangular prism with dimensions of 7 feet by 3 feet by 4.8 feet.
Part A: Find the total surface area of the bench. Show all work. (6 points)
Part B: The landscaper will cover the bench in ceramic tiles except for the bottom that is on the ground. If the tiles cost $0.89 per square foot, how much will it cost to cover the bench? Show all work. (6 points)
Part A: To find the total surface area of the rectangular prism, we need to calculate the areas of all six faces and then add them together.
Given dimensions:
Length = 7 feet
Width = 3 feet
Height = 4.8 feet
Surface Area of each face:
Front and back faces: Length * Height
= 7 feet * 4.8 feet
= 33.6 square feet
Top and bottom faces: Width * Length
= 3 feet * 7 feet
= 21 square feet
Side faces: Width * Height
= 3 feet * 4.8 feet
= 14.4 square feet
Total Surface Area:
2 * (Front and back faces) + 2 * (Top and bottom faces) + 2 * (Side faces)
= 2 * 33.6 square feet + 2 * 21 square feet + 2 * 14.4 square feet
= 67.2 square feet + 42 square feet + 28.8 square feet
= 137 square feet
Therefore, the total surface area of the bench is 137 square feet.
Part B: To calculate the cost of covering the bench with ceramic tiles, we need to multiply the total surface area by the cost per square foot.
Cost per square foot = $0.89
Total Surface Area = 137 square feet
Total cost to cover the bench:
= Cost per square foot * Total Surface Area
= $0.89 * 137 square feet
= $121.93
Therefore, it will cost $121.93 to cover the bench with ceramic tiles.
Find the best linear approximation, L(x), to f(x) = e' near x = 0. i.L(x) = x+1 ii. L(x) = x iii. LX) = c + 1
The best linear approximation to the function f(x) = e^x near x = 0 is L(x) = x + 1.
The given function is f(x) = e^x near x = 0.
To find the best linear approximation, L(x), we use the formula:
L(x) = f(a) + f'(a)(x-a),
where a is the point near which we are approximating.
Let a = 0, so that a is near the point x = 0.
f(a) = f(0) = e^0 = 1
f'(x) = d/dx (e^x) = e^x;
so f'(a) = f'(0) = e^0 = 1
Substituting these values into the formula: L(x) = 1 + 1(x-0) = x + 1
Therefore, the best linear approximation to f(x) = e^x near x = 0 is L(x) = x + 1.
For instance, linear approximation is used to approximate the change in a physical quantity due to a small change in another quantity that affects it.
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does 15/21 and 40/56 form a proportion
Answer:
No, 15/21 and 40/56 do not form a proportion.
Step-by-step explanation:
Simplify the algebraic expressions: 9(7x - 7)+(5x - 9)
Answer:
7x-7=0
5x-9=4x
4x(9)=36
x=36
A company makes a profit of 1.38 million. This is 2.54 million more than last year. What was the profit last year?
Answer:
negative 1.16 million
Step-by-step explanation:
P = 1.38 - 2.54 = -1.16 = a negative profit of $1.16 million = a loss of $1.16 million