A technician creates a solid steel part for a wind turbine. The part has a volume of 1015
cubic centimeters. Steel can be purchased for $0.29 per kilogram, and has a density of
7.95 g/cm
If the technician makes 500 of these parts, what is the cost of the steel, to the nearest
dollar? (1000g per kilogram)

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

"standard form:

3x2 + 14x − 10 = 0

solutions based on quadratic formula:

x1   = −14 − √ 142 − 4×3×(−10) /   2×3   = −14 − 2 × √ 79 /   6   ≈ −5.296

x2   = −14 + √ 142 − 4×3×(−10) /   2×3   = −14 + 2 × √ 79 /   6   ≈ 0.629

the answer to your question is b.