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3 years ago

HELP PLEASE ILL GIVE YOU BRILINST OR WTV

Mathematics

2 answers:

professor190 [17]3 years ago

8 0

Answer:

Has to be B im pretty sure

Step-by-step explanation:

kolbaska11 [484]3 years ago

6 0

Answer:

$y\geq 2x-2$

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Shala bought a pen on sale. She saved 17 percent of the original price of 29 dollars. About how much money did she save? A. 1 do

Gelneren [198K]

Answer:

B. 5 dollars

Step-by-step explanation:

17% = .17

"of" means to multiply.

29 × .17= 4.93

4.93 rounds up to 5

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3 years ago

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Joe has some money is his bank account. He deposits $45. Write an expression that represents the amount of money inJoe's account

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Answer:

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3 years ago

Find the volume of the figure: a cone with a square pyramid of the same height cut out. The pyramid has height l, and its square

IgorC [24]

Answer:

The volume of the figure is $\frac{l^{3}}{3}[\frac{1}{2}\pi-1]\ units^{3}$

Step-by-step explanation:

we know that

The volume of the figure is equal to the volume of the cone minus the volume of the square pyramid

step 1

Find the volume of the cone

The volume of the cone is equal to

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

we have

$r=l\frac{\sqrt{2}}{2}\ units$

$h=l\ units$

substitute

$V=\frac{1}{3}\pi (l\frac{\sqrt{2}}{2})^{2}l$

$V=\frac{1}{3}\pi (\frac{l^{3}}{2} )$

$V=\frac{1}{6}\pi (l^{3})\ units^{3}$

step 2

Find the volume of the square pyramid

$V=\frac{1}{3}Bh$

we have

$B=l^{2}\ units^{2}$

$h=l\ units$

substitute

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

$V=\frac{1}{3}(l^{3})\ units^{3}$

step 3

Find the difference

$\frac{1}{6}\pi (l^{3})-\frac{1}{3}(l^{3})=\frac{l^{3}}{3}[\frac{1}{2}\pi-1]\ units^{3}$

8 0

3 years ago