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2 years ago

I WILL GIVE GOLD MEDALS PLEASE HELP ??? Can somebody help with these 2 math questions?

Mathematics

1 answer:

taurus [48]2 years ago

6 0

4)

$\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta\pi r^2}{360}\qquad 
\begin{cases}
\theta=\textit{angle in degrees}\\
r=radius\\
----------\\
r=CE=9\\
\theta=120
\end{cases}$

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What is the volume of the square pyramid? Round to the nearest tenth.

goldfiish [28.3K]

Answer:

$V=718.7\ cm^{3}$

Step-by-step explanation:

we know that

The volume of the square pyramid is equal to

$V=\frac{1}{3}b^{2}h$

we have

$b=14\ cm$ ----> the length of the base of the square pyramid

$h=11\ cm$ ---> the height of the pyramid

substitute the values in the formula

$V=\frac{1}{3}(14)^{2}(11)$

$V=718.7\ cm^{3}$

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2 years ago

Need help asap or Im going to fail this class

nydimaria [60]

Answer:

The first four.

Step-by-step explanation:

There are 3 main postulates. SSS, SAS, and AAS. This simply refers to how we prove a triangle congruent. With SSS, all 3 sides must be congruent (either proven or given). AAS is when you have 2 angles congruent with a side next to one of the angles. NOT IN BETWEEN (there's an image as to what I'm talking about below). Finally, SAS. This is when you have a set of angles congruent with sides on each side congruent as well (look at the first four as an example of this.

Any more specific questions, feel free to ask!

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2 years ago

What is 1÷ (3/4) = ?

Valentin [98]

Answer:

Step-by-step explanation:

You can get your calculator to do this for you. 3 ÷ 4 = 0.75

1 ÷ 0.75 = 1.3333

or you can divide by 3/4 by hand

----

=====

-----

1 * 4

--- ----------- ====== 1.33333

1 * 3

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2 years ago

Write an algebraic expression for “12 less than the quotient of 12 and a number z.”

algol13

$\frac{12}{n} - 12$

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3 years ago

Mary leaves her house to take a walk. The graph shows the distance, d, in feet from

andrew-mc [135]

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3 years ago