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3 years ago

10

One flight of stairs has a slope of 3/4 , while another flight of stairs contains points (-2,3) and (14, 15). Would these be par

allel, perpendicular, or neither?

1 answer:

shusha [124]3 years ago

7 0

Answer:

Perpendicular

Step-by-step explanation:

m=y2-y1/x2-x1

m=15-3/14-(-2)

m=3/4

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Which expression is equivalent to this expression? x(2x+3) Question 1 options: 2x2+3 2x2+3x 2x2−3x 3x + 3

sleet_krkn [62]

Answer:

$2x^2+3x$ is the expression which is equivalent to $x\left(2x+3\right)$ .

In other words:

$x\left(2x+3\right)=2x^2+3x$

Step-by-step explanation:

Given the expression

$x\left(2x+3\right)$

solving

$x\left(2x+3\right)$

$\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac$

$a=x,\:b=2x,\:c=3$

$=x\cdot \:2x+x\cdot \:3$

$=2xx+3x$

$=2x^2+3x$ ∴ $2xx=2x^2$

Thus,

$x\left(2x+3\right)=2x^2+3x$

Therefore, $2x^2+3x$ is the expression which is equivalent to $x\left(2x+3\right)$ .

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3 years ago

Watch help video<br> What is the greatest common factor of 35 and 45?

storchak [24]

Answer:

5

Step-by-step explanation:

35 = 5 x 7

45 = 3 x 3 x 5

You see that 5 is the greatest, and only, common factor.

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3 years ago

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Dima020 [189]

it is b thats the it

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Please help me with this !!!!!!!!!!!!!!!!

sergij07 [2.7K]

Answer:

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