According to the question requirements
v= 4/3*pi*r^3
dv/dt = 4*pi*r^2*dr/dt
when
d= 1.7
r= 0.85
and
dv/dt = 2
2= 4*pi*(0.85)^2*dr/dtthus the the speed of increasing of the balloon's diameter is
dr/dt = 1/(2pi*(0.85)^2)
=<span>0.2203 ft/min</span>
2) Find the area of a parallelogram with a height of 8 inches and a base of 14 inches.
A=bh=14·8=112in²
3) Find the surface Area of the rectangular prism with a length of 15 cm, height of 7 cm, and width of 5 cm.
A=2(wl+hl+hw)=2·(5·15+7·15+7·5)=430cm²
4) Find the volume of the following figure:

5) You are wrapping a cube shape present that is 9 inches tall. How much wrapping paper will you need to wrap the entire present.
SA =
= 9x9x9 = 729in²
6) A truck has a trailer that has a length of 13ft, a width of 6ft, and a height of 8ft. What is the volume of the trailer?

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"The <em>beautiful</em> thing about <u><em>learning</em></u> is that <em>no one</em> can take it away from <u><em>YOU"</em></u>
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Simplify the expression and you get B. -18
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