$\bf \textit{arc's length}\\\\ s=r\theta ~~ \begin{cases} r=radius\\ \theta =angle~in\\ \qquad radians\\ \hrulefill\\ r=3\\ \theta =\frac{7\pi }{3} \end{cases}\implies s=3\cdot \cfrac{7\pi }{3}\implies s=7\pi$

4 0

3 years ago

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Find the vertex of an angle of an isosceles triangle if one base angle is 8 less than half the vertex?

skad [1K]

Vertex angle = x
1 base angle = 1/2x - 8

180-x = (1/2x-8)x2
180-x = x-16
196-x = x
196 = 2x
x=98

If you want explanation please ask me .

8 0

3 years ago

Bryce has 28 coins in his pocket, all of which are dimes and quarters. if the total value of his change is 445 cents, how many d

raketka [301]

He has 11 quarters and 17 dimes.
11 x .25 = 2.75 17 x .1 = 1.7 2.75 + 1.7 = 4.45
Hope this helps

7 0

3 years ago