if the simple interest on $1,000 for 4 years is $320, then what is the interest rate?

Answers

Answer 1

Answer:

8%

Step-by-step explanation:

assume simple interest rate = r

interest = 1000 * 4 * r = 320

r = 320/4000 = 0.08 = 8%


Related Questions

184 cm sq one one of it's leg is 16 cm long.find the length of the other leg.

Answers

Answer: Let the one leg be=base=16cm

area=1/2×b×h

184=1/2×16×h

8h=184

h=184/8

h=23

so the height (perpendicular)=23cm

(hypotenuse)2=p2+b2

=square root (23×23+16×16)

=square root (785)

=28.01cm

therefore, H=28.01cm

P=23cm

y² (-4y²-7) - 2y4 simplest form?

Answers

Answer:

-6y^4 - 7y^2

Explanation:

Distribute y2 with -4y2 and 7

-4y4 - 7y2 - 2y4

Combine the like terms, -4y4 and 2y4

-6y4 - 7y2

Determine the relative maxima of f(x)=2x^3-3x^2. Also describe where the function os increasing and decreasing.

Answers

Answer:

Below in bold.

Step-by-step explanation:

f(x)=2x^3-3x^2

Finding the derivative and equating to zero:

f'(x) = 6x^2 - 6x = 0

6x(x - 1) = 0

So there are turning point at x = 0 and 2 = 1.

Finding the relative maximum:

Second derivative is negative when we have a maximum value:

f"(x) = 12x - 5

- which is negative when  x = 0.

So the relative maximum is at x = 0 where f(x) = 2(0)^3 - 3(0)^2 = 0.

At x = 1, second derivative  = 12(1) - 5 = +7 so this is a relative  minimum.

The function is increasing  in interval -∝ < x < 0

decreasing in interval 0 < x < 1

then increasing in interval   1 < x < ∝

What is it called when you write a check for more money than you have in your
account?
OA. Overdraw.
OB. Overpay
O C. Interest rate.
OD. ATM Fee.

Answers

you bounce your check which whoever written it to won't receive the money

What percent of 72 is27?

Answers

Answer:

37.5%

Step-by-step explanation:

Let's consider the percentage as 'x'

[tex]72 * \frac{x}{100} = 27\\\\x = \frac{27 * 100}{72} \\x = 37.5%[/tex]

Please help me for a treat lol

Answers

Answer:

a) Jill ended her scooter ride at her house.

Step-by-step explanation:

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER. What is the volume of the square pyramid?

V=____mm^3(Round to the nearest 10th as needed.)

Answers

Step-by-step explanation:

the volume of any pyramid is

base area × height / 3

so, since we know the base area (a square with 23 mm side length), the only trick we need to do is to get the inner height (straight up in the middle from the base area to the top of the pyramid).

because this is a regular pyramid (the top of the pyramid is right above the middle of the base area), we can use Pythagoras for right-angled triangles

c² = a² + b²

with c being the Hypotenuse (the baseline of the triangle opposite of the 90° angle) and in our case the outer height along a side area triangle (24 mm).

the legs of that right-angled triangle are half of a base area side length (remember, the top of the pyramid is right over the middle of the base area square) and the inner height to the top.

so, we have

24² = 12.5² + height²

height² = 24² - 12.5² = 576 - 156.25 = 419.75

height = 20.48780125... mm

so, the volume of the pyramid is then

23² × 20.48780125... / 3 = 3,612.682287... mm³ ≈

≈ 3,612.7 mm³

A triangular-shaped window has a base of 3 feet and a height of 4 feet. What is the area of the window?

Answer asp

Answers

Answer:

12 feet

Step-by-step explanation:

4 times 3 is 12 and that is how u find area I think

Chad rolls a 6-­‐sided number cube. Which of the following describes the probability of rolling a factor of 32?


Impossible


Unlikely

Equally likely as not

Likely

Certain

Answers

Answer:

1,2 and 4 are the factors of 32 in numbers between 1 to 6

so probability of rolling a factor of 32 is = 3/6 = 1/2

now, the probability of not rolling the factor of 32 = 1 - 1/2 = 1/2

therefore, The probability is same for both cases.

Your answer is Equally likely as not

By : Modern Einstein

Expression 3x^2-105x-60 and (5x-20)(6x+3)

Which expression make it easier to find the values of x that make the equation f(x)= 0 true? Explain

find the values of x that make f(x) =0​

Answers

Answer:

[tex]30x^{2} -105x-60[/tex]

Step-by-step explanation:

Foiling.

Answer for branliest!

Answers

Answer:

For the first question

[tex]x = 2 \: cm[/tex]

For the second question

[tex]x = 6 \: cm[/tex]

Step-by-step explanation:

To find the value if x in both equation we have to use the Pythagorean Theorem which states that:

[tex] {a}^{2} = {b}^{2} + {c}^{2} [/tex]

a being the hypothenus*

Therefore for the first question we know that

[tex]a = x \: \: \: b = 1.6 \: \: \: \: c = 1.2 \\ so ... \: \: {x}^{2} = {1.6}^{2} + {1.2}^{2} \\ {x}^{2} = 2.56 + 1.44 \\ {x}^{2} = 4 \\ \sqrt{ {x}^{2} } = \sqrt{4} \\ x = 2 [/tex]

For the second question we know that

[tex]a = 6.5 \: \: \: b = 2.5 \: \: \: c = x \\ {6.5}^{2} = {2.5}^{2} + {x}^{2} \\ 42.25 = 6.25 + {x}^{2} \\ 42.25 - 6.25 = {x}^{2} \\ 36 = {x}^{2} \\ \sqrt{36} = \sqrt{ {x}^{2} } \\ 6 = x[/tex]

HELP ASAP ! in the graph of a linear inequality, the shaded region above or below the line is called a half-

Answers

The shaded region that is above or below the boundary line of the inequality graph is called a: half-plane.

What is the Half-plane of a Linear Inequality?

An half-plane is a graph of a linear inequality which contains the set of possible values of that makes the inequality true.

Thus, the half-plane is the shaded part of the graph of an inequality, which can either be above or below the boundary line.

The shaded region is called the: half-plane.

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What is (-i)5?
O A. 1
O B.-i
O C. -1
O D. i

Answers

[tex]\boxed{\sf B.~-i}\boxed[/tex]

<~~• ¥ Pls HELP me!! ¥ • ~~>

Answers

Answer:

A = 18

Step-by-step explanation:

A = b*h/2

A = 9*4 /2

A = 36/2

A = 18

the value of a varies directly at the square of the value of b, and b=3 when a=10. find the value of a when b=9

Answers

Answer:

answer = 90

Step-by-step explanation:

General equation:  a = k*b^2

Specifically:          10 = k*(3)^2 = 9 k

Solving for k:  k = 10/9

Then a = (10/9)b^2.    If b = 9, then a = (10/9)(9)^2 = 90 (answer)

Use the information to answer the following questions.
A manager at a large company wants to understand whether the employees are feeling
overworked while completing a project. The company has 200 employees working on the project all
over the world, but the manager only has time and money to collect information from 50 people.
Part A: For this situation, which would be the best way to collect data?
A. census
B. survey
C. experiment
D. Observational study

Answers

If a manager at a large company wants to understand whether the employees are feeling. The best way to collect data is: B. survey.

What is survey?

Survey can be defined as the data or information collected from group of people so as to draw or reach a conclusion.

Based on the information Survey would be the best method that would be  suited to understand whether the employees are feeing overworked or not.

The manager can send an online survey to the employee so as to collect that data that will enables the manager to reach a conclusion.

Therefore the correct option is B.

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-
What is g(x)= -4(x - 5)2 + 8 in standard form

Answers

Answer:

g(x) = -8x + 48

Yuan has 5 quarts of broth. He uses 1/2 of the broth to make soup. Then, he uses 1/4 of the broth he has left to make gravy.
How much broth, in quarts, does Yuan have left after making soup and gravy?

Answers

Answer:

  1 7/8 quarts

Step-by-step explanation:

The amount Yuan has left can be found by multiplying the original amount by the fraction he has left.

__

used

After using 1/2 of the broth for soup, the fraction remaining is ...

  1 -1/2 = 1/2

The amount Yuan used for gravy is 1/4 of this, or ...

  (1/4)(1/2) = 1/8 . . . of the original amount of broth

The total fraction Yuan used was ...

  fraction used = fraction for soup + fraction for broth = 1/2 +1/8 = 5/8

remaining

Then the fraction remaining is ...

  fraction remaining = 1 - fraction used = 1 - 5/8 = 3/8.

The amount remaining is this fraction of the original amount:

  (3/8)(5 quarts) = 15/8 quarts = 1 7/8 quarts . . . . remaining

Cylinder A has a radius of 7 inches and a height of 5 inches. Cylinder B has a volume of 490π. What is the percentage change in volume from cylinder A to cylinder B? 50% decrease 75% increase 150% decrease 100% increase

Answers

Answer:

The percentage change in volume between cylinder A and cylinder B is 50% Step-by-step explanation:

Step-by-step explanation:

The volume of a cylinder is given by the formula

V= πr^2h

For cylinder A, where r = 7 and h = 5 , pi = 22/7

V= π *7^2 * 5

V= π * 49 * 5

V = 769.69 cubic inch

For cylinder B

V = 490Pi

V = 153 cubic inch

The percentage change in volume between cylinder A and cylinder B

=[ (VA-VB)/VB] *100

=(1539.3804-769.69)/1539.3804

= 0.5000 100

= 50%

write an explicit formula for an, the nth term of the sequence 19,13,7,…

Answers

Answer:

-6n + 25

Step-by-step explanation:

First find the step: 6

This is because the sequence decreases by 6 each time.

Find the 'zero'th' term: 25

The term before the first term is 25, as you add 6.

- Educator

A swim team has 80 swimmers the first year and 90 swimmers the second year. What percent or increase do they experience over these first two years?

2%
10%
11.25%
12.5%

Answers

The increase in the percentage that they experience over these first two years will be 12.5%. Then the correct option is D.

What is the percentage?

The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol 'percent' is used to symbolize it.

A swim team has 80 swimmers in the first year and 90 swimmers in the second year.

Then the increase in the percentage that they experience over these first two years will be

P = (90 - 80)/80 x 100

P = 10/80 x 100

P = 0.125 x 100

P = 12.5%

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Find the measure of the unknown angle with the help of a protractor. Describe the method you used to find the angle measure.

Answers

Answer: 90 degrees acute

Step-by-step explanation: math

help help help help please ive been stuck on this for hours​

Answers

Answer:

the answer is

45.84

Step-by-step explanation:

a=pi*r^2

What are the surface areas of these two prisms

Answers

Answer: to calculate the area you multiply L x W x H

Step-by-step explanation:

Which is equivalent to 5x2y-5 / 10x6y10

Answers

Final Answer:

-x^2y • (x^4y^9 - 10)

—————————

2

1

:

1

Simplify —

2

Equation at the end of step

1

:

1

((5•(x2))•y)-((—•x6)•y10)

2

STEP

2

:

Equation at the end of step 2

x6

((5 • (x2)) • y) - (—— • y10)

2

STEP

3

:

Equation at the end of step 3

x6y10

((5 • (x2)) • y) - —————

2

STEP

4

:

Equation at the end of step

4

:

x6y10

(5x2 • y) - —————

2

A person to person payment app could be used in each of the scenarios except

Answers

Answer:

What are the options? We need to see the options to be able to answer the question :)

Step-by-step explanation:

I'll edit this once you add the scenarios

Leon is at the lake with his friends. It costs $8.50 to rent a paddleboat for a
1/2
-hour ride. Together, Leon and his friends have $25.50. How long can they ride in a paddleboat if they spend all of their money?

Answers

25.50/8.50=3 half hours or 1 hour 30 minutes

if y varies inversely as x and the constant of proportionality is k=5, what is y when x=2?

Answers

Answer:

y alpha 1 /x

y = k / x

( y = ? , x = 2, k = 5 )

y = 5 /2

y = 2.5

A fair coin is tossed 16 times. What is the probability that exactly 8 tails occur? a) 0.0002 b) 0.1208 c) 0.0001 d) 0.1964 e) 0.0020 f) None of the above.

Answers

A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. The probability that exactly 8 tails occur is 0.1963.

What is Binomial distribution?

A common discrete distribution is used in statistics, as opposed to a continuous distribution is called a Binomial distribution. It is given by the formula,

P(x) = ⁿCₓ (pˣ) (q⁽ⁿ⁻ˣ⁾)

Where,

x is the number of successes needed,

n is the number of trials or sample size,

p is the probability of a single success, and

q is the probability of a single failure.

The probability of a tail occurring is 0.5, while the probability of a tail, not coming is 0.5, therefore, we can write p=0.5 and q=0.5.

Now, the probability of exactly 8 tails occurring can be written as,

P(X=8) = ¹⁶C₈ (0.5)⁽⁸⁾ (0.5)⁽¹⁶⁻⁸⁾

P(X=8) = 12,870 (0.5)¹⁶

P(X=8) = 0.1963

Hence, the probability that exactly 8 tails occur is 0.1963.

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Which of the following pairs of values are NOT equal in a normal distribution curve?

Answers

The mean, median, and mode of a completely normal distribution will all have the same value, represented graphically by the top of the curve. The correct option is C.

What is a normal distribution?

The mean, median, and mode of a completely normal distribution will all have the same value, represented graphically by the top of the curve. The normal distribution is often known as the bell curve because the probability density graph resembles a bell.

The option that is not true for the normal distribution is the value of the mean and the height of the density curve at its lowest are not equal.

Hence, the correct option is C.

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