Use scientific notation to solve the problem.A light-year is the distance that light travels in one year. Find the number of miles in a light-year if light travels 1.86 x 105 miles per second.
A. 6.0 x 1014 miles
B. 6.0 x 1012 miles
C. 6.0 x 105 miles
D. 6.0 x 107 miles
Answer: B
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Find the exact value of the expression using the provided information.Find cos(s - t) given that cos s = - 
, with s in quadrant II, and 
with t in 
A. 
B. 
C. - 
D. - 
Solve the problem.Suppose the price p of bolts is related to the quantity q that is demanded by: p = 620 - 4q2where q is measured in hundreds of bolts. Suppose the supply function for bolts is given by p = 4q2, where q is the number of bolts (in hundreds) that are supplied at price p. Find the equilibrium price.
A. $620 B. $325 C. $9 D. $310
Find the difference.-37 - 37
A. 74 B. -74 C. 0 D. -111
Factor by grouping.x3 + 8x2 - 10x - 80
A. (x + 8)(x2 - 10) B. (x2 + 8)(x - 10) C. (x - 8)(x2 - 10) D. (x + 8)(x3 - 10x)