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3 years ago

7

A circle has a diameter of 8m. What is its circumference?

1 answer:

Maslowich3 years ago

6 0

The answer should be 25.12

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Simplify.<br> (-8V2)(+1/2V32)

erastovalidia [21]

Hello!!

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$\huge\blue{{\fbox{\tt{ANSWER:-\:}}}}$

$-32$

$\huge\red{{\underline{\overline{\textbf{MY\:EXPLANATION~!}}}}}$

Apply rule: $(-a) = -a$

$(-8\sqrt{2}) = - 8\sqrt{2}$

$= -8\sqrt{2}~\frac{1}{2}\sqrt{32}$

$\sqrt{2}~\sqrt{32} =\sqrt{64}$

$= -8\sqrt{64}~\frac{1}2}$

$\sqrt{64} = 8$

$= -8$ · $8$ · $\frac{1}{2}$

Multiply the numbers: $-~8$ · $8= -64$

$=-64$ · $\frac{1}{2} = -32$

$= -32$

Hope It Helps. . .

#LearnWithBrainly

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6 0

3 years ago

A pack of six cans of coffee cost 12$ . How much would 15 cans of coffee cost

Vera_Pavlovna [14]

$30 because 12/6 = 2 so 15 x 2 = 30

4 0

3 years ago

a science fair poster is a rectangle 48 inches long and 24 inches wide what is the area of the poster in square feet

anzhelika [568]

Answer:

Area=B×H=48×24=1,152 inches^2

8 0

3 years ago

Read 2 more answers

Seven times the sum of a number and 8 equals 4

gayaneshka [121]

Answer:

n= -52/7

Step-by-step explanation:

7(n+8)=4

(7×n)+ (7×8)=4

7n +56=4

7n +56-56=4-56

7n+0= -52

7n=-52

7n/7= -52/7

n= -52/7

3 0

2 years ago

Read 2 more answers

A solution which is 38.0% w/w in k2cro4 has a specific gravity of 1.37. calculate the concentration in terms of molarity of chro

Makovka662 [10]

When in aqueous solution, K2CrO4 dissociates into ions. It dissociates into:

K2CrO4 = 2K+1 + CrO4-1

We do as follows:

Molarity = mol / L = 0.38 g/g solution ( 1.37 g/mL ) ( 1 mol / 194.19 g ) ( 1 mol CrO4-1 / 1 mol K2CrO4 ) ( 1000 mL / 1 L ) = 2.68 M

7 0

3 years ago