$circumference=30ft.\\\\circumference=2\pi r\ (r-radius)\\\\2\pi r=30\ \ \ \ /:2\pi\\\\r=\frac{30}{2\pi}\\\\r=\frac{15}{\pi}\ (ft)\\\\\frac{15}{\pi}\approx\frac{15}{3.14}\approx4.78\ (ft)$

8 0

3 years ago

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If f(x)= 4-2x and g(x)=6x which expression is equivalent to (g-f)(3)

Dmitrij [34]

Answer:

(g-f)(3) = 20

Step-by-step explanation:

g(3)=6 * (3) = 18

f(3)= 4-2(3) = 4 - 6 = -2

(g-f)(3) = 18 - (-2) = 20

4 0

2 years ago

Are the triangles similar? How do you know? A. yes, by SAS B. yes, by SSS C. yes, by AA D. no

WARRIOR [948]

No, because 30.4+84.6+66=181
the sum of a triangle=180
so they are not similar.

4 0

3 years ago

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3 3/4 divide 2 1/12<br><br><br> sssss

dybincka [34]

3 3/4 divide 2 1/12 = 1.8

8 0

3 years ago