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Nataliya [291]
2 years ago
14

If f(x) = -8 - 5x, what is f(-4)

Mathematics
2 answers:
Mashcka [7]2 years ago
6 0

Answer:

f(- 4) = 12

Step-by-step explanation:

To evaluate f(- 4) substitute x = - 4 into f(x) , that is

f(- 4) = - 8 - 5(- 4) = - 8 + 20 = 12

bogdanovich [222]2 years ago
3 0

f(x)=-8-5x

\\ \rm\longmapsto f(-4)

  • Put -4 inplace of x

\\ \rm\longmapsto -8-5(-4)

\\ \rm\longmapsto -8+20

\\ \rm\longmapsto 12

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Which of the following are like terms?
SVETLANKA909090 [29]

Answer: D) 13y^25 and 2y^25

Like terms involve the same variables, and each of those variables must have the same exponents.

Another example of a pair of like terms would be 5x^3y^2 and 7x^3y^2. Both involve the variable portion "x^3y^2" which we can replace with another variable, say the variable z. That means 5x^3y^2 becomes 5z and 7x^3y^2 becomes 7z. After getting to 5z and 7z, it becomes more clear we have like terms.

5 0
3 years ago
Please I need help !!!!!
Mama L [17]
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Or
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4 0
3 years ago
How do i find the value of x on this problem?
zaharov [31]

Answer:

x = 7

Step-by-step explanation:

The proportion is

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14*(3x - 12) = 6*21                 Remove the brackets and combine

42x - 168 = 126                     Add 168 to both sides

42x = 126 + 168

42x =  294                           Divide by 42

x = 294/42

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8 0
2 years ago
I do not know this answer
Bogdan [553]

Answer:

try (-4,6)

Step-by-step explanation:

if you use tracing paper, put a mark where the point is

put the tip of the pencil on the point which it will rotate around

spin the paper by the degrees

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4 0
2 years ago
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storchak [24]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
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