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Sveta_85 [38]
3 years ago
13

Find each function value.

Mathematics
1 answer:
Levart [38]3 years ago
5 0

Put the values of x to the equations of the functions:

1. f(9) → x = 9; f(x) = -3x + 10

f(9) = -3(9) + 10 = -27 + 10 = -17

2. f(-2) → x = -2; f(x) = 4x - 1

f(-2) = 4(-2) - 1 = -8 - 1 = -9

3. f(-5) → x = -5; f(x) = -2x + 8

f(-5) = -2(-5) + 8 = 10 + 8 = 18

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Jonas has 3 more than two times the number of video games that Amber has. Amber has 12 games. How many does Jonas have? To solve
Tju [1.3M]

Answer:

36

Step-by-step explanation:

So Jonas has ? number of games.

Multiply 12 by 3.

You get thirty-six.

So Jonas has thirty-six games.

One step you take is multiplying 12 by 3.

I hope this helps! :)

8 0
3 years ago
In the year 1999, the surface elevation of Lake Powell was 3893 feet above sea level. In the year 2005, the surface elevation of
Sati [7]

Answer:

Rate of Change = -77.9 feet/year

My interpretation: "Is Bad."

Step-by-step explanation:

The rate of change is the number of feet that Lake Powell dropped, divided by the number of years the drop took place.  We want a value with a unit of feet/year.

<u>Year</u>    <u>Feet</u>

1999     3893

2005    3425.6  

<u>Change</u>

Year = (2005 - 1999)  or 6 years

Feet = (3425.6 - 3893) or -467.4 feet

Rate of Change = (-467.4 feet)/(6 years)

Rate of Change = -77.9 feet/year

=======================

FYI:  Lake Powell is 22.39 feet lower today (June 23, 2022) than it was 1 year ago.

8 0
2 years ago
5. Choose the equation of a line that is perpendicular to the given line and that passes through the given
3241004551 [841]

Answer:

Step-by-step explanation:oh

8 0
3 years ago
Read 2 more answers
Find the measure of exterior angle 1
RoseWind [281]
Lol, I am learning about this too!! The trick is to add 60 and 25. Meaning your answer is B. (85)
7 0
2 years ago
2x^2-12x-32=0 solution
Charra [1.4K]

Answer: x=−2 or x=8

Step-by-step explanation:

Step 1: Factor left side of equation.

2(x+2)(x−8)=0

Step 2: Set factors equal to 0.

x+2=0 or x−8=0

x=−2 or x=8

8 0
3 years ago
Read 2 more answers
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