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3 years ago

13

Find the rectangle of largest area that can be inscribed in a semicircle of radius r, assuming that one side of the rectangle li

es on the diameter of the semicircle.

1 answer:

cestrela7 [59]3 years ago

3 0

The two below rectangle shows the inscribed rectangle and diameter that lies on the circle.

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Are the following lines parallel ,perpendicular ,or neither

Iteru [2.4K]

Answer:

The lines are perpendicular.

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3 years ago

PLEASE HELP ME OUT!!!

igor_vitrenko [27]

Well, first, the equation that you are looking for is Y = MX + B. To find B, look at the first dot on the Y-axis. It starts at positive 3, so, you know your equation will end with +3. Next, to find MX, start at the either dot, and find the Rise/Run. In this particular equation, the rise is 1, and, the run is -2, because it's going backwards (negative line). Meaning, the line's equation would be, f( x )= -1/2x + 3.

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3 years ago

A sphere has a volume of Vequals=3600 in cubedin3. Find its surface area.

Mice21 [21]

$\bf \textit{volume of a sphere}\\\\
V=\cfrac{4}{3}\pi r^3\qquad 
\begin{cases}
r=radius\\
------\\
V=3600
\end{cases}\implies 3600=\cfrac{4}{3}\pi r^3
\\\\\\
3600=\cfrac{4\pi r^3}{3}\implies \sqrt[3]{\cfrac{3\cdot 3600}{4\pi }}=\boxed{r}\\\\
-----------------------------\\\\
\textit{surface area of a sphere}\\\\
S=4\pi r^2\implies S=4\pi \left(\boxed{\sqrt[3]{\cfrac{3\cdot 3600}{4\pi }}} \right)^2$

simplify away

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3 years ago

What is 3 to the power of 8 divided by 3 to the power of 2

Troyanec [42]

Answer:

729

Step-by-step explanation:

hope this helps!

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3 years ago

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Find the product of 51 and -2.5.

Bad White [126]

Answer: C. -102 + (-25.5)

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