<span>arccos (cos pi/2)=?
</span>cos pi/2=0, arccos (0)=?, we know that cos pi/2=0, so cos^-1 (o)= Pi/2, but cos^-1 (o)=arccos (0), so arccos (cos pi/2)=Pi/2

6 0

3 years ago

An oblique cylinder has a radius of 10 units and slant length of 26 units.

GREYUIT [131]

Answer:

A. 2,400π cubic units

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Expand (n+5)*2 by using the perfect square pattern

mario62 [17]

N^2 + 25 if you mean *2 is squared.

8 0

3 years ago

On a circle of radius 10 feet, what angle would subtend an arc of length 1 feet?

Alenkasestr [34]

$\bf s=\cfrac{r\theta \pi }{180}\quad 
\begin{cases}
r=radius\\
\theta=\textit{angle in degrees}\\
s=\textit{arc's length}\\
--------------\\
r=10\\
s=1
\end{cases}
\\\\\\
1=\cfrac{10\cdot \theta\cdot \pi }{180}\impliedby \textit{solve for }\theta$

6 0

3 years ago