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2 years ago

Solve and make a table ( you may decide what the topic is and the value is.Algebra I)

Mathematics

2 answers:

ratelena [41]2 years ago

6 0

Answer:

Hello...

I'm new user here.

Can you teach me how to use brainly? Please, it would bey favour.

I have just downloaded the app and don't know how to use.

lora16 [44]2 years ago

3 0

I really don’t know I just need points

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Use completing the square to solve for x in the equation (x-12)(x+4)=8,

Phantasy [73]

Answer:

i am pretty sure the answer is D) X =4 -73

6 0

3 years ago

Your friend just recovered from a painful bacterial ear infection. Her first day back at school, she says, "Scientists should ju

Goryan [66]

Answer:

Earth dies

Step-by-step explanation:

If there were no bacteria on earth everything that lives and breaths will cease to exist, No water, no trees, no birds, no air, no humans. everything will be gone the earth would just be lifeless

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2 years ago

Find the volume of the prism.

Rzqust [24]

Answer:

11,968

Step-by-step explanation:

I'm not sure, but I think its 11,968

8 0

3 years ago

John is 14 years older than Sam and the product of their ages is 240. How old is Sam?

Shtirlitz [24]

Answer:

A.) 10 years old

Step-by-step explanation:

Sam: John - 14

S = J - 14

S x J = 240

10 = J - 14

0 = J - 14 - 10

-J = -24

J = 24

10 x 24 = 240

3 0

2 years ago

A regular decagon has sides that are 8 cm long. What is the area of the figure? Round to the nearest whole number.

blsea [12.9K]

<u>Given</u>:

Given that the regular decagon has sides that are 8 cm long.

We need to determine the area of the regular decagon.

<u>Area of the regular decagon:</u>

The area of the regular decagon can be determined using the formula,

$A=\frac{s^{2} n}{4 \tan \left(\frac{180}{n}\right)}$

where s is the length of the side and n is the number of sides.

Substituting s = 8 and n = 10, we get;

$A=\frac{8^{2} \times 10}{4 \tan \left(\frac{180}{10}\right)}$

Simplifying, we get;

$A=\frac{64 \times 10}{4 (\tan \ 18)}$

$A=\frac{640}{4 (0.325)}$

$A=\frac{640}{1.3}$

$A=642.3$

Rounding off to the nearest whole number, we get;

$A=642 \ cm^2$

Thus, the area of the regular decagon is 642 cm²

Hence, Option B is the correct answer.

5 0

3 years ago