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Greeley [361]
3 years ago
12

Help please i’ll try to give brainliest:)

Mathematics
1 answer:
exis [7]3 years ago
8 0

9514 1404 393

Answer:

  108

Step-by-step explanation:

The circumference of a circle is given by ...

  C = 2πr

The circle shown has a radius of 9 in, so the circumference is ...

  C = 2π(9 in) = 18π in

__

When the circle is dilated by a factor of 6, the circumference is multiplied by 6. It becomes ...

  dilated C = 6(18π in) = 108π in

The multiplier of π inches is n = 108.

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Solve for k, the constant of variation, in a direction variation problem where y = 240 and x = 30.
Minchanka [31]
\bf \qquad \qquad \textit{direct proportional variation}
\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad  variation
\end{array}\\\\
-------------------------------\\\\
\textit{we also know that }
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3 years ago
Jana ran the first 312 miles of a 5-mile race in 13 hours. What was her average rate, in miles per hour, for this first part of
MrRa [10]

Answer:

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Jana's speed is

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8 0
3 years ago
Please Help ASAP I dont understand this <br><br>​
antiseptic1488 [7]

To find m<3, we can use the angle sum of triangles, in which the addition all angles in a triangle must be equal to 180°.

In this case:

m<3 +52°+29° = 180°

m<3 + 81° = 180°

m<3 = 180°-81°

m<3 = 99°

To find m<4, we can use adjacent angles on a straight line, where the addition of angles on a straight line must be 180°.

In this case:

m<4 + 99° = 180°

m<4 = 180°-99°

m<4 = 81°

Therefore m<3 is 99° while m<4 is 81°.

Hope it helps!

4 0
3 years ago
A recipe says to use 3 cups of flour to make 12 cookies. Andrew wants to make 288 cookies for a school fundraiser. How many cups
jeyben [28]

Answer:

72

Step-by-step explanation:

3  =  12 cookies

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5 0
3 years ago
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Answer:

48.75

Step-by-step explanation:

25 percent off 65.00 is 48.75

The difference is 16.25

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4 years ago
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