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

4 0

3 years ago

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3. What is the surface area of the triangular prism shown below?

jekas [21]

Answer:

1233cm^2

Step-by-step explanation:

a of triangle = 1/2 bh

1/2 x 12 x 9 = 54

108 x 2 = 108

a of regtangle = l x w

25 x 15 = 375

375 x 3 = 1125

total surface area = 1125 + 108 = 1233cm^2

7 0

2 years ago

1 2/3 + (2 1/2) = ?<br> pls help

Sever21 [200]

The answer is about 4.1.

3 0

2 years ago

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In this graph, the y-intercept of the line is ___.<br> The equation of the line is y=__ x __.

KonstantinChe [14]

Answer:

In this graph, the y-intercept of the line is -2, if the coordinates are needed, its (0,-2). The equation of the line is y= x-2 ( slope intercept form ).

Step-by-step explanation: I am not sure how to use the multiplication system below to write the equation, so sorry I couldn't help!

5 0

3 years ago