The answer is f(x)=x²+2x when evaluated with -3 gives you the value of 3
Answer:
it helps you in everyday life
Step-by-step explanation:
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Answer:
9
Step-by-step explanation:
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The two-sided alternative hypothesis is appropriate in this case, the reason being we are asked "does the data indicate that the average body temperature for healthy humans is different from 98.6◦........?".
The test statistic is:

Using an inverse normal table, and halving

for a two-tailed test, we look up

and find the critical value to be Z = 2.5758.
Comparing the test statistic Z = -5.47 with the rejection region Z < -2.5758 and Z > 2.5758. we find the test statistic lies in the rejection region. Therefore the evidence does not indicate that the average body temperature for healthy humans is different from 98.6◦.
180 feet, cause you have already covered half the square