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4 years ago

Help please I can’t solve please

Mathematics

1 answer:

daser333 [38]4 years ago

8 0

Answer:

Step-by-step explanation:

The formula of a circumference:

$C=2\pi r=d\pi$

r - radius

d - diameter

We have $C=52\pi\ in$ .

Calculate the diameter using $C=d\pi$ :

$d\pi=52\pi$ <em>divide both sides by π</em>

$d=52\ in$

-------------------------------------------------------------------------

If a circle inscribed in a square, then the diameter of a circle and a side of a square are congruent (have the same length).

We have the area of the square:

$A=36\ mm^2$

The formula of an area of a square:

$A=s^2$

s - side

Substitute:

$s^2=36\to s=\sqrt{36}\\\\s=6\ mm$

The formula of a circumference $C=d\pi$

d - diameter

d = s → d = 6 mm

Substitute:

$C=6\pi\ mm$

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Answer:

Brody purchased 16 songs.

Step-by-step explanation:

Ratio of the number of songs purchased by Brody(B) and Jayliah(J) = 2 : 3

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Similarly ratio of the songs purchased by Jayliah(J) and Sadie(S) = 4 : 5

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If Sadie bought the songs (S) = 30

From equation (2),

$\frac{J}{30}=\frac{4}{5}$

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3 years ago

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3 years ago

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3 years ago

What’s the answer for a, and b, and how would you solve it?

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Answer:

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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3 years ago