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3 years ago

If f(x) = x2 + x, find f(-3). A. -12 B. 3 C. 6

2 answers:

6 0

I believe that this would be (-3)²+-3. A negative times a negative is always positive, so -3² would be 9-3. We don't need the + sign because we would still subtract three from 9, which gives you 6. The answer would be C.

Alex17521 [72]3 years ago

4 0

-3 squared is 9. 9 + (-3) is 6.

Therefore, it's C

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Emma borrowed $89.40 from her sister. She determines that she can pay her back the total over six months. Which number reflects

omeli [17]

Answer:

$14.9

Step-by-step explanation:

Step one:

given data

we are told that Emma borrowed $89.40 from her sister to pay her back in 6 months.

let us solve for the amount she is to pay her sister every month.

amount to be paid per month= 89.40/6

=$14.9

So that every month she pays back her sister $14.9

we don't know her balance but every month there will be a deduction.

Hence the monthly change in her balance is reflected by a deduction of $14.9

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3 years ago

What is the sum of 13 5/7 + 13/28 ?

nydimaria [60]

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3 years ago

Ill give brainliest to who can answer 2/4 x 5/9 = 3.14

Lera25 [3.4K]

Answer:

if the x is for multiplication this is a false statement the true answer would be5/8 if the x is a variable then x would =11.304

Step-by-step explanation:

3 0

3 years ago

Solve for c. 15c – 9c + 2c – 6c = 8

den301095 [7]

Answer:

Step-by-step explanation:

$15c-9c+2c-6c=8\qquad\text{combine like terms}\\\\(15-9+2-6)c=8\\\\2c=8\qquad\text{divide both sides by 2}\\\\\dfrac{2c}{2}=\dfrac{8}{2}\\\\\huge\boxed{c=4}$

4 0

3 years ago

Read 2 more answers

I need help with writing a quadratic function with at two zeros where x = ‒2 and x = ‒5.

Zinaida [17]

In that case we create the equation:
(x +2) * (x+5)
x^2 + 7x + 10 = 0

5 0

3 years ago