4 years ago

WILL GIVE BRAINLIEST !!!

Mathematics

2 answers:

ryzh [129]4 years ago

7 0

<span>only A and C are similar.</span>

Cerrena [4.2K]4 years ago

5 0

A and B
these are similar

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azamat

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What is the answer to 7-3(x+6)=7-4x

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Factor the following polynomial 2x^2+9x+9

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Line g passes through points (5, 9) and (3, 2). Line h passes through points (9, 10) and (2, 12). Are line g and line h parallel

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For this case we find the slopes of each of the lines:

The g line passes through the following points:

$(x_ {1}, y_ {1}) :( 3,2)\\(x_ {2}, y_ {2}) :( 5,9)$

So, the slope is:

$m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {9-2} {5-3} = \frac {7} {2}$

Line h passes through the following points:

$(x_ {1}, y_ {1}) :( 9,10)\\(x_ {2}, y_ {2}) :( 2,12)$

So, the slope is:

$m = \frac {y_ {2} -y_ {1}}{x_ {2} -x_ {1}} = \frac {12-10} {2-9} = \frac {2} {- 7} = - \frac {2} {7}$

By definition, if two lines are parallel then their slopes are equal. If the lines are perpendicular then the product of their slopes is -1.

It is observed that lines g and h are not parallel. We verify if they are perpendicular:

$\frac {7} {2} * - \frac {2} {7} = \frac {-14} {14} = - 1$

Thus, the lines are perpendicular.

Answer:

The lines are perpendicular.

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3 years ago

Jose has 7 packs of baseball cards. He gives 5 cards from each pack to his friends and has 56 cards left. Write and solve an equ

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Answer:

Step-by-step explanation:

7 packs x 5 cards in each pack given away = 35

there were 56 cards left

56 + 35 = 91 total cards

91 / 7 = 13 cards in each pack

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3 years ago