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2 years ago

9

Which classification correctly describes the polygon?

1 answer:

sergiy2304 [10]2 years ago

5 0

Answer is (A) because it is concave and it has 8 sides

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Sandy charges each family that she babysits for a flat fee of $10 for the night and $5 extra per

Pani-rosa [81]

30 = 5x + 10 so x = 4

5 0

3 years ago

Solve the equation. Round to the nearest hundredth. Show work.

Burka [1]

Answer:

$x=-0.75$

Step-by-step explanation:

The given equation is

$4^{-5x-7}=6^{2x-1}$

We take logarithm of both sides to base 10.

$\log(4^{-5x-7})=\log(6^{2x-1})$

$(-5x-7)\log(4)=(2x-1)\log(6)$

We expand the brackets to get;

$-5x\log(4)-7\log(4)=2x\log(6)-\log(6)$

Group similar terms;

$-7\log(4)+\log(6)=2x\log(6)+5x\log(4)$

$-7\log(4)+\log(6)=(2\log(6)+5\log(4))x$

$\frac{-7\log(4)+\log(6)}{(2\log(6)+5\log(4))}=x$

$x=-0.752478$

To the nearest hundredth.

$x=-0.75$

3 0

3 years ago

The number 66 is increased to 72. What is the percentage by which the number was increased, to the nearest tenth of a percent?

Lunna [17]

Answer:

The increase is 9.1%

Step-by-step explanation:

<u>Step 1: Make an equation </u>

$66 * x = 72$

$66x = 72$

<u>Step 2: Divide both sides by 66 </u>

$66x / 66 = 72 / 66$

$x = 1.09090$

<u>Step 3: Find the increased </u>

$1 - 1.09090$

$0.091 * 100$

9.1%

Answer: The increase is 9.1%

6 0

2 years ago

It’s you birthday and you bought a giant sandwich to feed all of your guests. The sandwich is 10 1/2 feet long and you need to f

Hoochie [10]

Answer: $1\dfrac{3}{4}\text{ feet}$

Step-by-step explanation:

Given: Length of sandwich = $10\dfrac12\text{ feet}=\dfrac{21}{2}\text{ feet}$

Total people = 14

If everyone gets a same sized piece , then length of each piece should be

$\dfrac{\text{ Length of sandwich}}{\text{Total people}}$

$=\dfrac{\dfrac{21}{2}}{14}\text{ feet}\\\\=\dfrac{21}{2\times14}\text{ feet}\\\\=\dfrac{7}{2\times2}\text{ feet}\\\\=\dfrac{7}{4}\text{ feet}\\\\=1\dfrac{3}{4}\text{ feet}$

Hence, length of each piece = $1\dfrac{3}{4}\text{ feet}$

3 0

2 years ago

There are 25 quarts of water in a bucket. If you want to bottle it in 1/2 quart bottles, how many bottles do you have

nika2105 [10]

The answer will be 50 quarts using proportion and ratio

6 0

3 years ago

Read 2 more answers