Solve.A car travels 400 miles on level terrain in the same amount of time it travels 160 miles on mountainous terrain. If the rate of the car is 30 miles per hour less in the mountains than on level ground, find its rate in the mountains.

A. 40 mph
B. 80 mph
C. 20 mph
D. 50 mph


Answer: C

Mathematics

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A. if the data was more spread out it would B. cannot tell C. yes D. no

Mathematics

Provide an appropriate response.The formula for simple interest is I = PRT, where I is the amount of interest, P is the principal amount borrowed, R is the percent of interest charges, and T is the length of time of the loan. If the interest is $414, the principal is $3,680, and the time is one and one-fourth years, write an equation and solve to find the percent of interest charged.

Fill in the blank(s) with the appropriate word(s).

Mathematics

Find a function P(x) of least possible degree, having real coefficients, with the given zeros.4, -10, and 3 + 5i

A. P(x) = x4 - 111x2 + 444x - 1360 B. P(x) = x4 - 7x3 + 20x2 - 222x + 1360 C. P(x) = x4 - 7x3 - 20x2 + 222x - 1360 D. P(x) = x4 - 42x2 + 444x - 1360

Mathematics

Solve the equation.log x4 = (log x)4

A. 0, 1 B. 1, 6.219 C. 1, 38.672 D. 1, 4

Mathematics