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Travka [436]
3 years ago
12

If f(x) = 3x – 12, what is f(2)?

Mathematics
2 answers:
rjkz [21]3 years ago
7 0

Answer:

B. -6

Step-by-step explanation:

We are given

f(x)=3x-12

we have to find f(2)

To find f(2) , we can plug x=2 into f(x)

and we get

f(2)=3\times 2-12

now, we can simplify it

f(2)=6-12

f(2)=-6

So, the value of f(2) is -6

fredd [130]3 years ago
5 0
It would be B. -6.

f(x) = 3x-12
f(2) = 3(2)-12
f(2) = 6-12
f(2) = -6
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|j|=|2j+3| please help me
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Simplifying
j = (2j + 3)

Reorder the terms:
j = (3 + 2j)

Remove parenthesis around (3 + 2j)
j = 3 + 2j

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j = 3 + 2j

Solving for variable 'j'.

Move all terms containing j to the left, all other terms to the right.

Add '-2j' to each side of the equation.
j + -2j = 3 + 2j + -2j

Combine like terms: j + -2j = -1j
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8 0
2 years ago
Audrey has $111 to spend on a tennis racket and lessons. The racket costs $55 and the lessons cost $14 per hour. Define a variab
Mnenie [13.5K]

Answer:

Audrey can afford 4 hours of lesson.

Step-by-step explanation:

Given that:

Amount Audrey has to spend = $111

Cost of racket = $55

Cost per lesson = $14

Let,

y be the total cost

x be the number of hours

According to given statement;

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Hence,

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7 0
3 years ago
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