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3 years ago

PLEASE HELP!!!!!!!!!!!!!!

Mathematics

1 answer:

creativ13 [48]3 years ago

4 0

Answer:

a+b=1

Step-by-step explanation:

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4+3(2r+2s)+3r<br><br> Simplify this expression

Ipatiy [6.2K]

Hello!

First you can distribute the 3

4 + 6r + 6s + 3r

Then you combine like terms

4 + 9r + 6s

The answer is 9r + 6s + 4

Hope this helps!

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3 years ago

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Sergeeva-Olga [200]

Answer:

y=-2x-7 D

Step-by-step explanation:

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3 years ago

8. You are planning to use a ceramic tile design in your new bathroom. The tiles are blue-and-white equilateral triangles. You d

ira [324]

Step 1

Find the area of one equilateral triangle

Applying the law of sines

$Area=\frac{1}{2} *a*b*sin C$

in this problem

a=b=7 cm

C=60 degrees

$Area=\frac{1}{2} *7*7*sin 60$

$Area=\frac{1}{2} *49*\frac{\sqrt{3}}{2} \\ Area=49*\frac{\sqrt{3}}{4}$ cm²

Step 2

To calculate the area of the hexagon multiply the area of one equilateral triangle by $6$

$Area Hexagon=6*[49*\frac{\sqrt{3}}{4}] \\ Area Hexagon=73.5*\sqrt{3}$ cm²

therefore

the answer is the option

73.5 sqrt 3cm²

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3 years ago

Read 2 more answers

Select the correct answer.

Katena32 [7]

Answer:C consumer price index

Step-by-step explanation:

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3 years ago

Show your work<br><br>Show your work to back up your answer

attashe74 [19]

So it’s $15 per month so that is what you are gonna multiply by x. You start out with $75 so that’s the initial fee. 15x + 75 is your expression.

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2 years ago