If you want to construct a 90% confidence interval, what critical value (z*) should you use? Group of answer choices 2.576 1.960 1.645 2.221

i got 10.28 but that rounds up to 10.3

80x^8−68x^6+16^5−20x^4−4x^3+8x^2

hope i'm right lol

b

step-by-step explanation:

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168