Graph the polar equation.r = - 
+ cos ?
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Change 4859 to powers of ten form with an exponent of:
a. 3 b. 2 c. 4
Mathematics
Find anand a6 for the following arithmetic sequence.a1 = 42, d = -8
A. an = 42 + 8(n - 1), a6 = 82 B. an = 42 + 8n, a6 = 90 C. an = 42 - 8(n - 1), a6 = 2 D. an = 42 - 8n, a6 = -6
Mathematics
Solve the problem.The formula 
models the safe maximum speed, v, in miles per hour, at which a car can travel on a curved road with radius of curvature, r, in feet. A highway crew measures the radius of curvature at an exit ramp as 810 feet. What is the maximum safe speed?
A. 81 mph B. 50 mph C. 42 mph D. 45 mph
Mathematics
Write the expression in radical form and then evaluate.1211/2
A. 5.5 B. 44 C. 22 D. 11
Mathematics