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3 years ago

If f(x) = x2 + 2x – 10, what is f(-2)?

Mathematics

1 answer:

Vera_Pavlovna [14]3 years ago

4 0

Answer:

The answer is -18

Step-by-step explanation:

Actually if the x2 is supposed to be x^2 then it's -10

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9-x/5=3. Solve for x

kari74 [83]

Answer:

$\boxed{\boxed{\sf x=-6}}$

Step-by-step explanation:

$\sf \cfrac{9-x}{5}=3$

$\sf \cfrac{5\left(9-x\right)}{5}=3\times \:5$

$\sf 9-x=15$

$\sf 9-x-9=15-9$

$\sf -x=6$

$\sf \cfrac{-x}{-1}=\cfrac{6}{-1}$

$\sf x=-6$

4 0

3 years ago

What is the equation of a line with slope −23 and a y-intercept of −4 ?

Alona [7]

Answer:

its A

Step-by-step explanation:

the y intercept would be -4 and the slope would be -23, put it in y=mx+b form

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3 years ago

The total cost for paperback books varies

postnew [5]

Answer:

$113.81

Step-by-step explanation:

Find the cost for one book:

35.94 / 6 = 5.99

Multiply 5.99 with the number of books buying:

5.99 x 19 = 113.81

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3 years ago

The width of a yeast of grain is approximately 4 micrometers, which is 4*10^-6 meter. Give your answers in scientific notation.

SashulF [63]

Step-by-step explanation:

ok so just take 4×10=40

-6^40=20

6 0

3 years ago

1. Find the slope of the graph. Slope:

8_murik_8 [283]

Answer:

I think the answer is 5 down and over to the left 3.

Step-by-step explanation:

I just counted from the point on the (4,3) and counted down until it was line up with the other point. Next, I counted from there to the other point.

8 0

3 years ago

Read 2 more answers