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Mekhanik [1.2K]
3 years ago
7

-2(n+3)=13 help plz plz plz

Mathematics
2 answers:
Nuetrik [128]3 years ago
8 0
First move the -2 to the other side
Since it is multiplying the brackets we do the opposite and divide 13 by -2
We now have n+3=6.5
Now to get n as the subject we do the opposite of plus 3 so we minus 3 from the other side
So n=3.5
Ostrovityanka [42]3 years ago
5 0

Answer:

n = -9.5 or n = -19/2

Step-by-step explanation:

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Someone help! It is urgent!!!
djverab [1.8K]

Answer:

a. f(-1)=12

b. f(2t)=16t²-6t+5

c. f(t-2)=4t²-19t+27

Step-by-step explanation:

For a, b, c, we are given an input. We plug that into f(x) to find our answers.

a.  f(-1)=12

f(-1)=4(-1)²-3(-1)+5

f(-1)=4+3+5

f(-1)=12

-------------------------------------------------------------------------------------------------------------

b. f(2t)=16t²-6t+5

f(2t)=4(2t)²-3(2t)+5

f(2t)=4(4t²)-6t+5

f(2t)=16t²-6t+5

-------------------------------------------------------------------------------------------------------------

c. f(t-2)=4t²-19t+27

f(t-2)=4(t-2)²-3(t-2)+5

f(t-2)=4(t²-4t+4)-3t+6+5

f(t-2)=4t²-16t+16-3t+6+5

f(t-2)=4t²-19t+27

7 0
3 years ago
Tim is 5 pounds heavier than Amy. Let Amy's weight will be x pounds
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Answer:

A) x+5

B) 121

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A) If Tim is 5 pounds heavier than Amy, an equation for this situation can be modeled by x+5, where Amy is <em>x </em>pounds.

B) If Tim is 126 pounds, then Amy's weight is 126-5=121 pounds.

4 0
3 years ago
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