Convert the equation given in polar form into rectangular form.r cos ? = 5
A. y2 = 5
B. x2 + y2 = 5
C. y = 5
D. x = 5
Answer: D
Mathematics
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Solve.Dave can hike on level ground 3 miles an hour faster than he can on uphill terrain. Yesterday, he hiked 37 miles, spending 2 hours on level ground and 5 hours on uphill terrain. Find his average speed on level ground.
A. 5
mph
B. 4
mph
C. 7
mph
D. 7
mph
Mathematics
Multiply.-2 ? 5 ? (-6) ? 2
A. 120 B. 36 C. -120 D. -36
Mathematics
Solve the equation.
+ 
= 
A. 
B. {-4}
C. {-8}
D. {8}
Mathematics
Find the quadratic function y = f(x) that has the given vertex and whose graph passes through the given point.(-3, -81)
A. y = - 
x2
B. y = 9x2
C. y = -3x2
D. y = -9x2
Mathematics