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3 years ago

-4(-4x^2-4+3v^3) solve using the distributive property to remove the parenthesis

1 answer:

5 0

Well you multiply the outside with the inside———- for instance
-4 • -4 = 16^3
-4• -4 = 16
-4 • 3 = -12v^3
So 16^3 + 16 - 12v^3 do the powers & your done

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What shape is produced when slicing a right rectangular pyramid perpendicular to the base

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3 years ago

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ivann1987 [24]

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3 years ago

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K is equal to l m is equal to n as the angles are marked, what's x and y

Greeley [361]

X - y + x + y = 180
2x = 180
x = 90
2x - 2y = x + y
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y = 30

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3 0

3 years ago

a language arts test is worth 100 points there is a total of 26 questions . there are spelling word questions that ae worth 2 po

natka813 [3]

10 question of spelling words and 16 questions of vocabulary are present

Solution:

Let "x" be the number of spelling word questions

Let "y" be the number of vocabulary word question

There is a total of 26 questions. Therefore, we get

number of spelling word questions + number of vocabulary word question = 26

x + y = 26 --------- eqn 1

There are spelling word questions that worth 2 points each and vocabulary word question worth 5 points each

The language arts test is worth 100 points

Therefore, we frame a equation as:

number of spelling word questions x 2 + number of vocabulary word question x 5 = 100

$x \times 2 + y \times 5 = 100$

2x + 5y = 100 --------- eqn 2

Let us solve eqn 1 and eqn 2

From eqn 1,

x = 26 - y ------- eqn 3

Substitute eqn 3 in eqn 2

2(26 - y) + 5y = 100

52 - 2y + 5y = 100

3y = 100 - 52

3y = 48

Substitute y = 16 in eqn 3

x = 26 - 16

Thus 10 question of spelling words and 16 questions of vocabulary are present

4 0

3 years ago