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fredd [130]
3 years ago
11

Someone can help me with 31 & 33? i need help

Mathematics
2 answers:
Setler [38]3 years ago
8 0

Answer:

for 31. The answer is 20

Step-by-step explanation:

f(12)=-2(12)+4=20

nika2105 [10]3 years ago
3 0

31. It gives you the equation f(x) = -2x + 4 and asks you to solve for f(12). To solve this you must replace x in the equation -2x + 4 with 12 like so:

-2(12) + 4

Remember that when solving this use your rules of PEMDAS. In this case you will first multiply -2 and 12 then add the product with 4

-24 + 4

f(12) = -20

33. Replace x in the equation x³ - x with 5 like so...

5³ - 5

Again, remember to use the rules of PEMDAS to solve this. First take the cube of 5 then subtract 5 from the answer

125 - 5

g(5) = 120

Hope this helped!

~Just a girl in love with Shawn Mendes

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Answer:

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Step-by-step explanation:

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Warm-Up
Sveta_85 [38]

Answer:

Graph # 3

Step-by-step explanation:

-2x + 5y > 15               Let x  = 0  solve for y

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 Graph # 3 is correct because the y-intercept  is 5  

    x          y

    0          3                    -2(0) + 5y = 15;     5y = 15

    5          5                  -2(5) + 5y = 15;    -10 + 5y = 15;  5y = 25; y = 5

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   The graph > the line is dotted and you will shade above the line

4 0
2 years ago
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