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3 years ago

Which of the following equations is equivalent to 2(a + 6) – 3(a – 5) = 18?

Mathematics

2 answers:

meriva3 years ago

5 0

Answer: c

use distributive property:
2(a+6)-3(a-5)+15=18
2a+12-3a+15=18

combine like terms:
2a+12-3a+15=18
-a+27=18

defon3 years ago

4 0

Answer:

$\fbox{Option C}$

Step-by-step explanation:

Let me know if you want the full explanation. Have a great weekend! ❤

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Please need help on this one

AysviL [449]

Answer:

45°

Step-by-step explanation:

The base angle are the same measure and since one angle is already 90° the remaining two are 45°. They have to equal up to 180. 90 + 45 + 45 = 180.

Hope this helps ya!!

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2 years ago

25) Wal-Mart is having a sale on packs of pencils. A pack of 24 pencils is on sale for $0.48. I plan to buy 20 packs of pencils.

Bezzdna [24]

Multiply the 20 packs by the 0.48 per pack
Your answer will be $9.60

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2 years ago

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In a recent survey, students were asked how long they play video games in one sitting. The interquartile range of

Alex Ar [27]

Answer:

The middle half of the video game data has a range that is 43 minutes wide.

Step-by-step explanation:

Thats the answer on Edguinity I took the Quiz.

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3 years ago

<img src="https://tex.z-dn.net/?f=%20%7B2%7D%5E%7Bn%7D%20%20%3D%20226%20%20" id="TexFormula1" title=" {2}^{n} = 226 " alt=" {2

Rudik [331]

N equals to 7.82 (to 2 decimal places)

5 0

3 years ago

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a cone with a radius of 3” has a total area of 24pie square inches. Find the volume of the cone. 12pie, 24 pie or 15 pie

Ratling [72]

Answer:

$12\pi (inches)^{2}$

Step-by-step explanation:

Given:

radius of cone = 3 inch

Total area of cone = $24\pi (inch)^{2}$

Find the volume of the cone?

We know the area of cone = $\pi r(r+s)$ -------(1)

Where r = radius

Ans s = side of the cone

Put the area value in equation 1

$24\pi=\pi r(r+s)$ -------(1)

$\frac{24\pi }{\pi r} =r+s$

$\frac{24}{ r}-r =s$

Put r value in above equation.

$s =\frac{24}{ 3}-3$

$s=8-3$

$s=5$

The side s = 5 inches

We know the side of the cone formula

$s^{2}=r^{2}+ h^{2}$

$h^{2}=s^{2}- r^{2}$

Put r and s value in above equation.

$h^{2}=5^{2}- 3^{2}$

$r^{2} = 25-9$

$r^{2} = 16$

$r = 4$

The volume of cone is

$V = \frac{1}{3} \pi r^{2} h$

Put r and h value in above equation.

$V = \frac{1}{3} \pi (3)^{2}\times 4$

$V = 12\pi (inches)^{2}$

The Volume of the cone is $12\pi (inches)^{2}$

7 0

3 years ago