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2 years ago

15

A car’s value decreases 5% every year after it is purchased. If the original price of the car was $30,000, how much is the car w

orth in 7 years?

1 answer:

topjm [15]2 years ago

7 0

Answer:

20,950.12

Step-by-step explanation:

use the formula A=P(1-r/100)^n,P=30000,r=5%,,n=7

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I can't figure this question out I've tried multiple times but only 2/3. Help, please.

Scrat [10]

Answer:

yes it is 2/3

Step-by-step explanation:

4 0

2 years ago

I dont get this question, anyone help me please

prisoha [69]

Its a line plot, for every number that is listed put a mark above the number on the number line. So if there was 3 6's, on the number line above the 6, put 3 marks like dots or x's to represent the amount of 6.
Hope you understand.

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2 years ago

Use the rules of exponents to evaluate or simplify. Write without negative exponents. 1/4^-1/2 = ___ a0

Nastasia [14]

For this case we have, by definition:

$a^{-b} =\frac{1}{a ^ b}$

So, we have:

$\frac{1}{4}^{-\frac{1}{2}}=\frac{1}{(\frac{1}{4})^{\frac{1}{2}}}$

On the other hand we have that by definition:

$a^{\frac{1}{2}}=\sqrt{a}$

Thus, the expression can be written as:

$\frac{1}{\sqrt {\frac{1}{4}}} =$

$\frac{1}{\frac{1}{\sqrt{4}}}$

$\frac{1}{\frac{1}{2}}$

$\frac{1*2}{1*1}=2$

So, we have:

$\frac{1}{4}^{-\frac{1}{2}}= 2$

Answer:

$\frac{1}{4}^{-\frac{1}{2}}= 2$

4 0

3 years ago

if a cylinder with height 9 inches and radius r is filled with water, it can fill a certain pitcher. how many of these pitchers

dalvyx [7]

Answer:

4 pitchers

Step-by-step explanation:

we know that

The volume of a cylinder is equal to

$V=\pi r^{2}h$

step 1

Find the volume of the cylinder with height 9 inches and radius r

substitute the given values

$V_1=\pi r^{2}(9)$

$V_1=9\pi r^{2}\ in^3$

step 2

Find the volume of the cylinder with height 9 inches and radius 2r

substitute the given values

$V_2=\pi (2r)^{2}(9)$

$V_2=36\pi r^{2}\ in^3$

step 3

we know that

The volume of the cylinder 1 can fill a certain pitcher,

so

The volume of the pitcher is the same that the volume of cylinder 1

therefore

the number of pitchers that can be filled by the second cylinder is equal to divide the volume of the second cylinder by the volume of the first cylinder

$\frac{36\pi r^{2}}{9\pi r^{2}}=4\ pitchers$

3 0

2 years ago

Is the following variable categorical or quantitative? Collect data from a sample of teenagers with a question that asks ‘‘Do yo

Gnom [1K]

Answer:

The following variable is categorical.

Step-by-step explanation:

Consider the provided information.

Categorical variables: It take the values of categories or labels and position an entity in one of more classes.

Quantitative variables: It take numerical values and represent a calculation of some kind.

Now consider the given scenario.

Teenagers with a question that asks ‘‘Do you eat at least five servings a day of fruits and vegetables?"

Here we have two categories i.e fruits and vegetables.

Therefore, the following variable is categorical.

5 0

3 years ago