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MakcuM [25]
2 years ago
7

Evaluate f(x) = x + 8 when x = -3, 0, and 5.

Mathematics
1 answer:
USPshnik [31]2 years ago
5 0

Answer:

f(-3) = -3 + 8 \\= 5\\f(0) = 0 + 8 \\= 8\\f(5) = 5 + 8 \\= 13

Step-by-step explanation:

All we need to do is plug in the x-values.

if

f(x) = x + 8

then

f(-3) = -3 + 8 \\= 5\\f(0) = 0 + 8 \\= 8\\f(5) = 5 + 8 \\= 13

hope this helped!!

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Natasha2012 [34]

Answer:

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Step-by-step explanation:

Using the Pythagorean Theorem, (a^2+b^2=c^2 ) we can measure the hypotenuse of a right triangle. Since the doorway is a rectangle, and a rectangle cut diagonally is a right triangle, we can use Pythagorean Theorem to measure the diagonal width of the doorway.

Plug in the values of the length and width of the door for a and b. The c value will represent the diagonal width of the doorway:

6^2+9^2=c^2

36+81=c^2

117=c^2

Since 117 is equal to the value of c multiplied by c, we must find the square root of 117 to find the value of c.

\sqrt{117} =10.8

10.8=c

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7 0
3 years ago
I need some help:
dedylja [7]

The unit rate is another way of saying speed, so we divide the distance over the time. We can pick on any row

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So does row 3: 225/5 = 45

and so on

Because the speed is 45 mph, the unit rate is 45 miles in one hour. The term "unit" implies how much distance can be covered in one unit of time, in this case 1 hour.

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6 0
3 years ago
What is the slope of the line that passes through the points (-6, 8) and (-9, 7)? Write your answer in simplest form.
yanalaym [24]

Answer:

m=1/3

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Step-by-step explanation:

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6 0
2 years ago
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Answer:

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Step-by-step explanation:

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  35r - 3450 = 16150 . . . . eliminate parentheses, collect terms

  35r = 19600 . . . . . . . . . . add 3450

  r = 560 . . . . . . . . . . . . . . divide by the coefficient of r

Samantha ran 560 feet per minute.

5 0
3 years ago
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W = 10 ft; l = 50 ft is Correct

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