Results:
Compound Interest (CI) = 27,280
Total Amount = 47,280
How do we calculate Compound Interest?We shall calculate Compound Interest using the formula:
Compound Interest: CI = P * \((1 + r/n)^{nt}\) - P
Where:
P = Principal amount
r = Rate of interest (in decimal)
n = The compounding periods in a year
t = Time (in years)
Given:
Principal (P) = 20,000
Rate of interest (R) = 800% = 8 (in decimal)
Time (t) = 12 seconds
Compounding frequency = every 3 seconds
We need to calculate the rate of interest in decimal and the number of compounding periods in a year.
Rate of interest (r) = R/100 = 8/100 = 0.08
Compounding frequency (n) = 1 / (compounding period in seconds) = 1 / 3 = 0.3333
CI = 20,000 * \((1 + 0.08/0.3333)^{0.3333*12}\) - 20,000
CI = 20,000 * \((1 + 0.24)^{3.9996}\) - 20,000
CI = 20,000 * \(1.24^{3.9996}\) - 20,000
CI = 20,000 * 2.364 - 20,000
CI = 47,280 - 20,000
CI = 27,280
So, the compound interest after twelve seconds = 27,280.
To calculate the total amount after 12 seconds, we can use the formula:
Total Amount = Principal + Compound Interest
Total Amount = 20,000 + 27,280
Total Amount = 47,280
Therefore, the total amount after 12 seconds = 47,280.
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The area of a trapezoid is 145cm2. The height is 10cm and the length of one of the parallel sides is 10cm. Find the length of the second parallel side. Express your answer as a simplified fraction or a decimal rounded to two places
Answer:
19 cm.
Step-by-step explanation:
Area = h(a + b)/2
where h = height, and a and b are parallel sides,
145 = 10(10 + b)/2
290 = 100 + 10b
10b = 190
b = 19 cm.
Suppose that, in 1994, Finland produced 1.916
1.916
million bikes. The total world production that year totaled 89
89
million bikes. What percent of the world's total production of bikes is contributed by Finland? Round your answer to the nearest tenth.
Answer:
percent of contribution on bike production by Finland= 1916000/89000000*100 = 2.153%
Step-by-step explanation:
What is (123
) ÷ (18
)?
Answer:
6.8333333333 or 41/6
Step-by-step explanation:
A cubic root function has a domain of x≥−3 and a range of y≥−1. What is the range of its inverse?
In general, if the range of a function is y≥−1, its inverse has a domain of y≥−1. So, the range of the inverse of the cubic root function is y≥−1.
How do we know this?The range of a cubic root function becomes the domain of a cube function and vice versa since a cubic root function is an inverse function of a cube function. Therefore, the cube function's range is x3 if the cubic root function's domain is x3.
A function's inverse typically has a domain of y1 if its range is y1. Therefore, y1 is the domain of the inverse of the cubic root function.
Describe a function.
A function is a mathematical relationship between a domain—a set of inputs—and a range—a set of outputs. Each input in the domain is given a distinct output, known as the function value, by a function. An equation or graph can be used to depict the function value.
A function is typically represented symbolically by an equation that describes the relationship between the inputs and outputs and a letter, like f or g, as well as the letter. For instance, the equation of a function that accepts a value of x as input and produces its square is f(x) = x2.
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Tory is going to the fair with four of her friends. The entrance fee per person is $7.50. They plan to go together on all the rides. The cost of each ride is $3.00. Write an expression to represent the cost of the group to go to the fair for any number of rides.
Answer:
$37.5+$3r
Step-by-step explanation:
We can assume that the number of rides is r. Since each ride is $3.00, all rides are $3r ($3xr).
We also know that there are FIVE people going to the fair, with Tory being one and each of her friends. Since the entrance fee is 7.50, we can do 7.50x5 which is $37.5.
Then, you can add it which is $37.5+$3r
Jay's father is twice as old as jay. In 20 years Jay will be two-thirds as old as his father. How old is each now?
Answer:
the answer is 2
Step-by-step explanation:
Confusing to me please help......
Hi there!
\(\large\boxed{3 \text{ boxes}}\)
Calculate the number of boxes of cubes needed by calculating the volume of the pictured figure.
We can see that it has a width of 4 blocks, depth of 2 blocks, and a height of 8 blocks.
Calculate volume: V = l × w × h
V = 4 × 2 × 8 = 64 cubes in each box.
Since she needs 140 cubes, we can find how many boxes she would need for this amount:
140 ÷ 64 = 2.1875.
However, you cannot buy a part of a box, which is why you must round to a whole number. However, only buying 2 boxes would be too little.
Thus, she would need to buy 3 boxes.
I need help pleaseeeeeeeeeeeeeeeeeeee
Answer:
Step-by-step explanation: [-2.19] = -3
[3.67] = 3
[-0.83] = -1
The domain of this function is a group of real numbers that are divided into intervals such as [-5, 3), [-4, 2), [-3, 1), [-2, 0) and so on. This explains the domain and range relations of a step function.
This can be generalized as given below:
[x] = -2, -2 ≤ x < -1
[x] = -1, -1 ≤ x < 0
[x] = 0, 0 ≤ x < 1
[x] = 1, 1 ≤ x < 2
Answer:
y = - \(\frac{3}{2}\) x
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
calculate m using the slope formula
m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)
with (x₁, y₁ ) = (- 2, 3) and (x₂, y₂ ) = (0, 0) ← 2 points on the line
m = \(\frac{0-3}{0-(-2)}\) = \(\frac{-3}{0+2}\) = - \(\frac{3}{2}\) , then
y = - \(\frac{3}{2}\) x + c ← is the partial equation
to find c substitute either of the 2 points into the partial equation
using (0, 0 )
0 = - \(\frac{3}{2}\) (0) + c = 0 + c , so
c = 0
y = - \(\frac{3}{2}\) x + 0 , that is
y = - \(\frac{3}{2}\) x
25/5=60/12 do they form a proportion
Answer: YES
Step-by-step explanation: both equal 5 when divided.
Freddie Vargo received this statement from the department store. Find the average
daily balance (new purchases included), the finance charge, and the new balance.
Transaction
Posting
Burcharor
Raymon
the daily balance equals the previous day's balance plus new purchases minus the payments and credits
How do I calculate the average daily balance with new purchases included?New purchases included indicates that at the conclusion of each day, the firm adds any new purchases to the balance. In other words, the daily balance is equal to the previous day’s amount plus any new purchases less any payments or credits. Credit card issuers will also impose a late fee if payment is not received by the due date.
The daily balance approach calculates your finance fee based on your actual amount on each day of your billing cycle rather than an average of your balance throughout the course of the billing cycle. Finance costs are computed by adding each day’s amount and multiplying it by the daily rate, which is 1/365th of your APR.
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Antoinette needs to solve this system of equations by graphing. Which statements explain how she should graph the equations? Check all that apply. 2 x minus 7 y = 56. y = negative 2.5 x + 4. She should rewrite both equations in slope-intercept form. She should rewrite the first equation in slope-intercept form. She should find that the second equation has a slope of 4. When rewriting the first equation, she should subtract 2x from each side of the equation to get –7y by itself. After rewriting the first equation in slope-intercept form, she should find that both lines have negative slopes.
Answer:
A. She should rewrite both equations in slope-intercept form.
(this step is true in general, but only the first requires the rewriting for this particular example, so become ambiguous).
B. She should rewrite the first equation in slope-intercept form.
D. When rewriting the first equation, she should subtract 2x from each side of the equation to get –7y by itself.
(this is just the first part of the step of the rewriting)
Step-by-step explanation:
Antoinette needs to solve this system of equations by graphing. Which statements explain how she should graph the equations? Check all that apply.
2 x minus 7 y = 56.
y = negative 2.5 x + 4.
A. She should rewrite both equations in slope-intercept form.
B. She should rewrite the first equation in slope-intercept form.
C. She should find that the second equation has a slope of 4.
D. When rewriting the first equation, she should subtract 2x from each side of the equation to get –7y by itself.
E. After rewriting the first equation in slope-intercept form, she should find that both lines have negative slopes.
Answer:
The answer is b and d
Step-by-step explanation:
I took the test on edge and got it wrong because of the other person
HOPE THIS HELPS!!!
What is the symbol ~, if you're trying to find the probability of ~A?
the addition probability
the probability of the event not happening
the multiplication probability
None of these choices are correct.
Simplify the following expressions by adding or subtracting like terms or just rewrite the expression of its already simplified
The first expression is
\(2x+3.2x-1\)We have to reduce like terms
\((2+3.2-1)x=4.2x\)The first answer is 4.2x
The second expression is
\(3a+4b+2a-9b=3a+2a+4b-9b=5a-5b=5(a-b)\)The third expression is
\(3a+5ab=a(3+5b)\)Observe that in the third expression we only factored out the greatest common factor which was a.
Lisa bought 15 pounds of sugar for $9.
How many pounds of sugar did she get per dollar?
Answer:
1 1/3 pounds
Step-by-step explanation:
15/9 = 1 1/3
Hope this helps!
Answer:
1.66pounds/$
Step-by-step explanation:
$9=15pounds
$1= less
1/9×15
=15÷9
=5÷3
=1.66pounds/$
A survey found that the American family generates an average of 17.2 pounds of glass garbage each year. Assume the standard deviation of the distribution is 2.5 pounds. Find the probability that the mean of a sample of 40 families will be between 17.1 and 18.1 pounds. Assume that the sample is taken from a large population and the correction factor can be ignored. Round your final
answer to four decimal places and intermediate z-value calculations to two decimal places
The probability that the mean of a sample of 40 families will be between 17.1 and 18.1 pounds is given as follows:
0.5874 = 58.74%.
How to obtain probabilities using the normal distribution?The z-score of a measure X of a variable that has mean symbolized by \(\mu\) and standard deviation symbolized by \(\sigma\) is obtained by the rule presented as follows:
\(Z = \frac{X - \mu}{\sigma}\)
The z-score represents how many standard deviations the measure X is above or below the mean of the distribution, depending if the obtained z-score is positive or negative.Using the z-score table, the p-value associated with the calculated z-score is found, and it represents the percentile of the measure X in the distribution.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).The parameters for this problem are given as follows:
\(\mu = 17.2, \sigma = 2.5, n = 40, s = \frac{2.5}{\sqrt{40}} = 0.3953\)
The probability that the mean of a sample of 40 families will be between 17.1 and 18.1 pounds is the p-value of Z when X = 18.1 subtracted by the p-value of Z when X = 17.1, hence:
\(Z = \frac{X - \mu}{\sigma}\)
By the Central Limit Theorem:
\(Z = \frac{X - \mu}{s}\)
Z = (18.1 - 17.2)/0.3953
Z = 2.28
Z = 2.28 has a p-value of 0.9887.
Z = (17.1 - 17.2)/0.3953
Z = -0.25
Z = -0.25 has a p-value of 0.4013.
Hence:
0.9887 - 0.4013 = 0.5874 = 58.74%.
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PLEASE HELP ME WITH THIS!!
To solve a(b + c) = d for a in 1 step:
Answer:
a = \(\frac{d}{b+c}\)
Step-by-step explanation:
a(b + c) = d
isolate a by dividing both sides by b + c
a = \(\frac{d}{b+c}\)
write ____ as a single power of 5
Answer:
\(5^{14/5}\)
Step-by-step explanation:
\(\frac{5^3}{5^{1/5}} \\ \\ 5^{3-\frac{1}{5}} \\ \\ =5^{14/5}\)
crash test results the insurance institute for highway safety crashed the 2010 ford fusion four times at 5 miles per hour. the costs of repair for each of the four crashes were $2529,$1889,$2610,$1073 $2529,$1889,$2610,$1073
compute the mean, median, and mode cost of repair.
Answer:
We know that
The costs of repair for each of the four crashes were
$2529, $1889, $2610, $1073
Here we have to compute the mean, median, and mode cost of repair.
Mean = total cost
the no of crashes
Mean = $2529 + $1889 +$2610 +$1073
4
Mean = $2025.25
Therefore the mean = 2025.25
Then we have to find median.
Now first we have to arrange the data in ascending order (smallest to highest).
$1073,$1889,$2529,$2610
Add the two middle numbers and then divide by two, to get the average:
$1889+$2529 = $4418
Median = $4418/2 = $2209
Therefore the median = $2209
Here there is no mode cost.
Which of the following points would fall on the line produced by the point-slope form equation y - 10 = 3(x - 11) when graphed?
Answer:
(-5,-37)
(-4,-34)
(-3,-31)
(-2,-28)
(-1,-25)
(0,-22)
(1,-19)
(2,-16)
(3,-13)
(4,-10)
(5,-7)
(6,-4)
Step-by-step explanation:
y - 10 = 3(x - 11)
y - 10 = 3x - 33
y = 3x -22
helppp pls 20 points !!
A lot is 60 m by 38 m. A house 32 m by 9 m is built on the lot. How much area is left over?
Answer:
1992
Step-by-step explanation:
60x38=2280
32x9=288
2280-288=1992
Hope it helps!
PLEASE HELP ME WITH THIS!!!! I BEG
Answer:
D. turns
Step-by-step explanation:
Rotation is the process of turning around a center or an axis.
(Sorry if it's wrong. I hope I helped somewhat.)
Modern Electronics offers a one-year monthly installment plan for a big screen TV. The payment for the first month is 882, and then it increases by 4% each month for the rest of the year. Which expression can be used to find the total amount paid in the first 12 months?
✿————✦————✿
Answer: A
\(62=\frac{12(1.04^{12}-1) }{1.04-1}\)
✿————✦————✿
If Susan will be 2 times old in seven years as she was 3 years ago, what is Susan's present age?
Answer:
Let's start by assigning a variable to Susan's present age. Let's call it "x".
According to the problem, in seven years, Susan will be "x + 7" years old.
Three years ago, Susan was "x - 3" years old.
The problem tells us that Susan will be 2 times as old in seven years as she was 3 years ago. So we can set up the following equation:
x + 7 = 2(x - 3)
Now we can solve for x:
x + 7 = 2x - 6
x = 13
Therefore, Susan's present age is 13 years old.
Let's assume Susan's present age is "x" years. According to the information provided, "Susan will be 2 times old in seven years as she was 3 years ago."
Seven years from now, Susan's age would be x + 7, and three years ago, her age would have been x - 3. According to the given statement, her age in seven years will be two times her age three years ago:
x + 7 = 2(x - 3)
Let's solve this equation to find Susan's present age:
x + 7 = 2x - 6
Subtracting x from both sides:
7 = x - 6
Adding 6 to both sides:
13 = x
Therefore, Susan's present age is 13 years.
write the english phrase as an algebraic expression. Let x represent the number
The english phrase "Seven less than four times a number" as an algebraic expression is 4x - 7
Writing the english phrase as an algebraic expressionFrom the question, we have the following parameters that can be used in our computation:
seven less than four times a number
Represent the number with x
So:
four times a number means 4x
So, we have
seven less than 4x
seven less than means - 7
So, we have
4x - 7
Hence, the english phrase as an algebraic expression is 4x - 7
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Complete question
write the english phrase as an algebraic expression. Let x represent the number
Seven less than four times a number
Use Polya's four-step problem-solving strategy and the problem-solving procedures presented in this lesson to solve the following exercise.
Find the following sums without using a calculator or a formula. Hint: Apply the procedure used by Gauss. (See the Math Matters on page 31.)
+393 +394 + 395
(a) 1+2+3+4+...+392
(b) 1+2+3+4
x
546 + 547 +548 + 549
(c) 2+4+6+8+...+76 + 78 + 80 +82
(a) The sum of the series 1+2+3+4+...+392 is 77,028.
(b) The sum of the series 1+2+3+4...x is (x/2)(1 + x).
(c) The sum of the series 546 + 547 + 548 + 549 is 2,190.
To solve the exercise using Polya's four-step problem-solving strategy, we will apply the procedures presented in the lesson.
(a) For the series 1+2+3+4+...+392:
Using the arithmetic series formula Sn = (n/2)(a + l), where n is the number of terms, a is the first term, and l is the last term, we can substitute the values: Sn = (392/2)(1 + 392) = 196(393) = 77,028.
(b) For the series 1+2+3+4...x:
To find the sum of this series, we need to know the number of terms (n) based on the value of x. Since the series follows a consecutive pattern, the number of terms will be equal to x itself. Thus, the sum of the series would be Sn = (x/2)(1 + x).
(c) For the series 546 + 547 + 548 + 549:
Using the arithmetic series formula Sn = (n/2)(a + l), we can determine the number of terms (n) by subtracting 546 from 549 and then adding 1: n = 549 - 546 + 1 = 4. Substituting the values into the formula: Sn = (4/2)(546 + 549) = 2(1095) = 2,190.
The final answer for each part is:
(a) The sum of the series 1+2+3+4+...+392 is 77,028.
(b) The sum of the series 1+2+3+4...x is (x/2)(1 + x).
(c) The sum of the series 546 + 547 + 548 + 549 is 2,190.
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Consider the following system with parameters h and k -x - 3y + 4z = -6 - 4x – 8y - 3z = 3 -11x – 7y + hz = k
Performing elementary row operations, the augmented matrix of the system can be put in upper triangular form: 1 -3 4 | -6 0 -20 13 | -21 0 0 h +18 | k - 24 For what values of h and k will the system have infinitely many solutions? a. Any value of h and k = 24. b. Any value of k and h -18 c. h = -18, k = 24 d. h= -18, k = 25 e. h = -17, k = 25 f. h = -17, k = 24
For any value of k and h = -18, the system will have infinitely many solutions.
Hence, option (b) is the correct choice.
A coefficient matrix in linear algebra is a matrix made up of the coefficients of the variables in a group of linear equations. In order to solve systems of linear equations, the matrix is employed.
The system will have infinitely many solutions when the determinant of the coefficient matrix is equal to 0.
The determinant can be calculated from the upper triangular matrix as the product of the diagonal elements, which is 0 * (-20) * (h + 18) = 0.
Therefore, the system will have infinitely many solutions when h + 18 = 0,
or h = -18.
This means the answer is (b) any value of k and h = -18.
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Find the missing length of the triangles it’s OK if you can only do one
Answer:
5) 9
6) 11 2/3
Step-by-step explanation:
Use the Pythagorean Theorem.
5) a²+5.6²=10.6²
a²+31.36=112.36
a²=81
a=√81
a=9
6) a²+4²=12.3333²
a²+16=152.11111
a²=152.11111-16
a²=136.1111
a=√136.1111=11.6666
Pls help this is due today ! Find the value x:
Answer:
x= 12
Step-by-step explanation:
180° = (3x - 6) + (8x + 4) + 50° because all interior angles of a triangle add up to 180°
180° = 11x +48°
11x = 132°
x = 12