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2 years ago

Which line has a slope of -1/2? Line A Line B Line C Line D

Mathematics

1 answer:

Alex73 [517]2 years ago

8 0

Answer:

Line D

Step-by-step explanation:

Two points that passes through line D : (0,-2) & ( -4 , 0)

$Slope =\dfrac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\\=\dfrac{0-[-2]}{-4-0}\\\\\\=\dfrac{0+2}{-4}\\\\\\=\dfrac{2}{-4}\\\\\\=\dfrac{-1}{2}$

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Does anyone know how to do this?? steps are helpful but not necessary

aniked [119]

Answer:

C. $\frac{2(x+16)}{x+4}$

Step-by-step explanation:

We want fg of x, so first we have to multiply f(x) times g(x).

$\frac{x+16}{x} * \frac{2x}{x+4}$

$\frac{(x+16)2x}{x(x+4)}$

$\frac{2x^{2}+32x}{x^{2}+4x}$

We can cancel out an x from every term.

$\frac{2x+32}{x+4}$

Let's rewind a little to get this into one of the answer choices.

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Juli2301 [7.4K]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

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zhenek [66]

X = -2
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3 years ago

Read 2 more answers

Find four consecutive even numbers whose sum is -68

melamori03 [73]

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2 years ago

A cinema has three screens . last saturday there were 500 visitor . 40% went to screen 1 . 25% went to screen 2. The rest went t

Butoxors [25]

Answer:

Screen 1: 200, Screen 2: 125 , Screen 3: 175

Step-by-step explanation:

Screen 1

Multiply 40% and 500

Convert 40% to a decimal

40/100=0.40

500*0.40

200

Screen 2

Multiply 25% and 500

Convert 25% to a decimal

25/100=0.25

500*0.25

125

Screen 3

Subtract the amount of people that went to screens 1 and 2 from the total

500-200-125

175

So, Screen 1 had 200 visitors, 2 had 125 and 3 had 175

Hope this helps! :)

8 0

3 years ago