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3 years ago

7. Which expression is equivalent to the expression (5.5 X 107)(3.2 x 10') 2 X 105

Mathematics

1 answer:

levacccp [35]3 years ago

4 0

Answer:

soln:

(5.5 × 107)

(3.2 × 10')

+ 2 × 105

_______________

8.8. ×.1011

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Which of the following points lie in the solution set to the following system of inequalities? (1 point)

swat32

Answer:

the answer is

The point (1, −5) lie in the solution set

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3 years ago

Solve ~ <img src="https://tex.z-dn.net/?f=2x%20-%2056%20%3D%2014" id="TexFormula1" title="2x - 56 = 14" alt="2x - 56 = 14

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Answer:

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Step-by-step explanation:

Add 56 to both sides of the equation

2x-56+56=14+56

Simplify

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Divide both sides of the equation by the same term

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3 years ago

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What does -6x-6 equal to??

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-6x-6

you can write it as

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3 years ago

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I DON’T UNDERSTAND! PLEASE HELP!

Brums [2.3K]

Answer:

The height of the water is $60.5\ ft$

Step-by-step explanation:

step 1

Find the volume of the tank

The volume of the inverted right circular cone is equal to

$V=\frac{1}{3}\pi R^{2} H$

we have

$R=16\ ft$

$H=96\ ft$

substitute

$V=\frac{1}{3}\pi (16)^{2} (96)$

$V=8,192\pi\ ft^{3}$

step 2

Find the 25% of the tank’s capacity

$V=(0.25)*8,192\pi=2,048\pi\ ft^{3}$

step 3

Find the height, of the water in the tank

Let

h ----> the height of the water

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional

$\frac{R}{H}=\frac{r}{h}$

substitute

$\frac{16}{96}=\frac{r}{h}\\ \\r= \frac{h}{6}$

where

r is the radius of the smaller cone of the figure

h is the height of the smaller cone of the figure

R is the radius of the circular base of tank

H is the height of the tank

we have

$V=2,048\pi\ ft^{3}$ -----> volume of the smaller cone

substitute

$2,048\pi=\frac{1}{3}\pi (\frac{h}{6})^{2}h$

Simplify

$221,184=h^{3}$

$h=60.5\ ft$

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3 years ago

If tan x=2021 x=20/21 and π< x < 3π/2 what is cos⁡(x+π/2)?

Flura [38]

Answer:

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Step-by-step explanation:

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