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3 years ago

what is the radius of a circle with a circumference of 125 cm? round your answer to the nearest whole number .use 3.14

Mathematics

2 answers:

fiasKO [112]3 years ago

7 0

Answer:

18.41

Step-by-step explanation:

first you have to divided 125 by 3.14 to get the denominator which is 39.81 then divided that by to to get your radius and round (if needed).

Lerok [7]3 years ago

5 0

Answer:

19.9 i think

Step-by-step explanation:

125/3.14=39.8

39.8/2=19.9

hope i helped

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Step-by-step explanation:

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Which of the following expressions is/are equivalent to 16x + 8-2?

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2 years ago

Graph ARST with vertices R(6, 6), S(3, -6), and T(0, 3) and its image after a

padilas [110]

Answer:

The answer is the second figure and the vertices of Δ R'S'T' are:

R' = (-6 , 6) , S' = (-3 , -6) , T' = (0 , 3)

Step-by-step explanation:

* Lets revise some transformation

- If point (x , y) reflected across the x-axis

∴ Its image is (x , -y)

- If point (x , y) reflected across the y-axis

∴ Its image is (-x , y)

- If point (x , y) reflected across the line y = x

∴ Its image is (y , x)

- If point (x , y) reflected across the line y = -x

∴ Its image is (-y , -x)

- Now we can solve the problem

∵ R = (6 , 6) , S = (3 , -6) , T = (0 , 3), they are the vertices of ΔRST

- The triangle RST is reflected over the y-axis

- According to the rule above the signs of x-coordinates will change

∵ R = (6 , 6)

∴ Its image is (-6 , 6)

∵ S = (3 , -6)

∴ Its image is (-3 , -6)

∵ T = (0 , 3)

∴ Its image is (0 , 3)

* Now lets look to the figure to find the correct answers

- The image of Δ RST is ΔR'S'T'

∵ The vertices of the image of ΔRST are:

R' = (-6 , 6) , S' = (-3 , -6) , T' = (0 , 3)

* The answer is the second figure

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