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Sergeeva-Olga [200]

3 years ago

15

Help plzzz_______help

2 answers:

Marina86 [1]3 years ago

8 0

Answer:

C

Step-by-step explanation:

Because

perimeter- 28÷4=7

So 84÷7=12

find the outer line that have 12

allochka39001 [22]3 years ago

4 0

Answer:

The perimeter of the first square is 28 with 4 sides so 28 divided by 4 is 7. So C has 12 sides and 7 times 12 is equal to 84

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Ket [755]

First off, nicely done on the exponents. You'd be surprised on how bad some look ,:D

a)
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b)
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3 years ago

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STALIN [3.7K]

If you subtract -9-21 and 36-56

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3 years ago

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spin [16.1K]

Answer:

$y$

Step-by-step explanation:

6 0

3 years ago

A company rents water tanks shaped like a cylinders. Each tank has a diameter of 12 feet and a height of 3 feet. The cost is $2

12345 [234]

Answer:

$\$678.58$

Step-by-step explanation:

step 1

<u>Find the volume of the tank</u>

we know that

The volume of a cylinder (water tank) is equal to

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

in this problem we have

$r=12/2=6\ ft$ -----> the radius is half the diameter

$h=3\ ft$

substitute

$V=\pi (6^{2})(3)=339.29\ ft^{3}$

step 2

Find the cost

$339.29\ ft^{3}*2\frac{\$}{ft^{3}}=\$678.58$

3 0

3 years ago

List the reactants when limestone reacts to produce calcium chloride,water and carbondioxide

Artemon [7]

Answer:

The completed reaction is

CaCO3 + 2 HCl → (Ca+2 + 2 Cl-)aq + H2O + CO2↑

8 0

3 years ago