Solve the problem. Round to the nearest tenth, if necessary.A long-distance runner runs 3 miles directly south and then faces due east and runs another 10 miles. How far is the runner, in a straight line, from his starting point? 
A. 6.5 mi
B. 10.4 mi
C. 5.2 mi
D. 54.5 mi
Answer: B
Mathematics
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An initial investment of $545.45 declines at a rate of 5 percent per year. What is the value of the investment after 3 years? Round your answer to the nearest cent. ? ?
A. $572.72 B. $81.82 C. $467.66 D. None of the above
Mathematics
Use the cofunction identities to find an angle ? that makes the statement true.sin (3? - 17°) = cos (? + 43°)
A. ? = 10° B. ? = 6° C. ? = 90° D. ? = 16°
Mathematics
Find the quotient and the remainder.x4 + 3x2 + 4 divided by x2 + 1
A. x2 + 2x + 1; remainder 2
B. x2 + 2; remainder 2
C. x2 + 2x + 
; remainder 0
D. x2 + 2; remainder 0
Mathematics
Solve the system by substitution.y - x2 = 3xy = x - 1
A. (-1, -4) and (-1, -2) B. (-1, -2) and (-1, -3) C. (-1, -2) and (-1, -2) D. (-1, -2)
Mathematics