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3 years ago

Finding a percent of a number

Mathematics

1 answer:

Vlad [161]3 years ago

8 0

Turn the percent into a decimal . Ex: 80% = .80 as a decimal. Then divide.

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Please someone help!!

Eduardwww [97]

Answer:

466 $cm^{3}$

Step-by-step explanation:

Ok to solve this problem we need to find the volume of the rectangular prism and subtract the volume of the cube from it.

The volume of the rectangular prism is Length * Width * Height.

L = 15

W = 9

H = 4

15 * 9 * 4 = 530 $cm^{3}$

The volume of the cube is $l^{3}$

$l$ = 4

4^3 = 64

530-64 = 466 cm^3

3 0

2 years ago

Find the slope of the line containing the given pair of points. If the slope is undefined, state this. (-8,0) and (4,0)

ahrayia [7]

Answer:

The slope is 0

Step-by-step explanation:

Given

$(x_1,y_1) = (-8,0)$

$(x_2,y_2) = (4,0)$

Required

The slope (m)

This is calculated as"

$m=\frac{y_2-y_1}{x_2 - x_1}$

$m=\frac{0-0}{4 -(-8)}$

$m=0$

The slope is 0

3 0

3 years ago

Solve the inequality. 9(2 − x) − 4(2 − 3x) > 9

e-lub [12.9K]

Remove both sets of brackets.

18 - 9x - 8 + 12x > 9 Collect like terms on the left.

12x - 9x + 18 - 8 > 9

3x + 10 > 9 Subtract 10 from both sides.

3x > 9 - 10

3x > - 1 divide by 3

x > -1/3

Notice what the graph is telling you. A blue dotted line is going through x = - 1/3 or - 0.3333

Everything to the right of - 0.333 is colored blue and that means anything to the right if going to be a solution to the inequality. To confirm this for yourself, try zero and 1. Both should give larger than 9 solutions.

4 0

3 years ago

Read 2 more answers

Please help will mark brainliest solve triangles using the law of cosines

NeTakaya

Answer:

i'm pretty sure the answer is -

BC = 8.1

Step-by-step explanation:

7 0

3 years ago

If you could plz help it would be greatly appreciated. Questions in picture :)

Pavel [41]

Notice that 8 can be written in exponential form of $2^{3}$

When you see $(2^{3} )^{\frac{8}{3} }$ , recognize that $(a^{m} )^{n} =a^{mn}$

3 × $\frac{8}3}$ = 8

Hence, the answer is $2^{8}$ . Which means 256.

Here is some indices rules/formulas you might find helpful as well:

$a^{m} * a^{n} =a^{m+n} \\\\ a^{m} /a^{n} =a^{m-n} \\\\ (a^{m} )^{n} =a^{mn} \\\\ a^{-m} =\frac{1}{a^{m} }$

7 0

3 years ago