Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 1.79x + 0.43
B. y = 0.43x + 1.79
C. y = -1.86x + 1.79
D. y = 1.79x - 1.86
Answer: B
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Factor completely.u2 - 2uv - 35v2
A. (u + 5v)(u - 7v) B. (u - 5v)(u + 7v) C. prime D. (u - 5v)(u + v)
Rewrite the equation in standard form. Find the center and radius of the circle.x2 + y2 - 18y + 17 = 0
A. x2 + (y - 9)2 = 64 center (0, -9), r = 8 B. x2 + (y - 9)2 = 64 center (0, 9), r = 8 C. (x - 9)2 + y2 = 64 center (9, 0), r = 8 D. x2 + (y + 9)2 = 64 center (0, -9), r = 8
Solve.Natasha rides her bike (at a constant speed) for 3 hours, helped by a wind of 2 miles per hour. Pedaling at the same rate, the trip back against the wind takes 7 hours. Find find the total round trip distance she traveled.
A. 42 miles
B. 
miles
C. 21 miles
D. 10 miles
Use a proportion to solve the problem.A poll of 2000 people indicated that 3 out of 5 people were planning on voting in the next election. Of the people who intend to vote 11 out of 20 will vote for the Republican candidate. How many people in the poll will vote for the Republican candidate?
A. 1200 people B. 1100 people C. 660 people D. 540 people