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cluponka [151]
3 years ago
15

Will give brainliest answer

Mathematics
1 answer:
makvit [3.9K]3 years ago
5 0

Answer:

28 . 26cm

Step-by-step explanation:

First find the radius

d = 2r \\ 9 = 2r \\  \frac{9}{2}  =  \frac{2r}{2}  \\ r = 4.5

Now find the CIRCUMFERENCE

c = 2\pi \: r \\  = 2 \times \pi \times 4.5 \\  = 9 \times \pi \\  = 28.26

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3 years ago
What is the width of the rectangle if the length is 4 times the reciprocal of the width and the perimeter is 10?
shusha [124]
Create formulas for length and perimeter.

L = 4/W
10 = 2*L + 2*W

Substitute formula for length for the length in perimeter formula
10 = 2*4/W + 2*W
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Using the quadratic formula you get two possible answers
W = 1, or W = 4
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8 0
3 years ago
HURRY UP!!
Whitepunk [10]
I don’t understand do u need the equation but if u do this is the equation y=2/7+4 hope that helps
3 0
3 years ago
Read 2 more answers
(07.02 MC)
Sergio039 [100]

Part A:

1 solution. It is a linear equation => one solution.

Part B:

                                        3(2x - 7) = 3

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(add 7 to both sides)               2x = 8

(divide through by 2)                 x = 4

4 0
3 years ago
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