4x² -6
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x²+2 l 4x^4 +2x² -2
l 4x^4 +8x²
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-6x² -2
-6x² -12
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10

so the answer is $(4x^2-6) \frac{10}{x^2+2}$

8 0

3 years ago

Find the intervals over which the function is increasing. I think it's B which is (-oo,-1),(-1,0) but want to make sure

Butoxors [25]

That looks correct. If your graph let's you scroll upward, double check to see if the line crosses 1 on the x axis. as long as it never touches x=1, you answer is correct

7 0

2 years ago

Read 2 more answers

If lisa can run a mile in 7 minutes. At that rate of speed, how long would it take her to run 2 kilometers?

murzikaleks [220]

Answer:

8.75

Step-by-step explanation:

1 mile = 1.6 km

So, every 7 minutes, 1.6 km is ran.

Divide 1.6 by 2 to figure out how much more she is running.

1.6 / 2 = 0.8

Divide the known pace by the extra distance to figure out the time

7 min / 0.8 km = 8.75 min

5 0

2 years ago