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Elenna [48]
3 years ago
8

Points (-21, 5) and (-7,y) have a slope of 5. Find the y coordinate of the point.

Mathematics
1 answer:
hjlf3 years ago
8 0

Answer:

80

Step-by-step explanation:

The equation of finding a slope is y2-y1/x2-x1.

y-5/-7-(-21)=5

y-5/-7+21=5

y-5/15=5

y-5=75

y=80

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Evaluate 18 - 5x when x = -7​
sukhopar [10]

Answer:

i thinks its -53

Step-by-step explanation:

18-5x

5x-7= -35

-35-18

-53

3 0
3 years ago
Divide using long division. check your answers. 1. (x 3 – 13x 2 + 7x – 48) ÷ (x 2 + 3) 3. (x 3 + 5x 2 – 3x – 1) ÷ (x – 1) 5. (x
artcher [175]
1. We can conclude that the result of the division is x-13 with a remainder of 4x-9, or in other notation: x-13+ \frac{4x-9}{x^2+3}. Check the steps in the first image.

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5. We can conclude that the result of the division is x+1 with a remainder of 5, or in other notation: x+1+ \frac{5}{x-4}. Check the steps in the first image.

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9. To check if x-3 is a factor of x^{3}+3x^{2}-10x-24, we are going to perform long division. If the result of the long division has no remainder, x-4 is a factor of x^{3}+3x^{2}-10x-24.
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3 0
3 years ago
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timofeeve [1]
The expression would look like this: 2(3+x)

Hope this helps :)
8 0
4 years ago
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beks73 [17]

Answer:

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f(b) = b^2 – 75

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b^2 = 75

Take the square root of each side

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We know that sqrt(ac) = sqrt(a) sqrt(c)

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4 years ago
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notka56 [123]
Because the line makes equal angle at all the points..
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