Simplify the expression by combining any like terms.5x2 - 2x - 2 + 6x + 7 + 5x2
A. 10x4 + 4x2 + 5
B. 3x2 + 11x + 5
C. 10x2 + 4x + 5
D. 19x3
Answer: C
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Replace the polar equation with an equivalent Cartesian equation.r = 
A. 
= 1
B. 7x - 9y = 1
C. 7y - 9x = 1
D. 
+ 
= 1
Solve the problem.A wheel with radius 3 m rolls at 20 rad/s. How fast is a point on the rim of the wheel rising when the point is 
radians above the horizontal (and rising)? (Round your answer to one decimal place.)
A. 120.0 m/s B. 60.0 m/s C. 15.0 m/s D. 30.0 m/s
Find Pk, and Pk + 1.
Pn: 6^n – 1 is divisible by 5
Solve the problem.Avegail needs to determine the distance at certain points across a lake. Her crew and she are able to measure the distances shown on the diagram below. Find the distance across the lake to the nearest tenth of a meter.
A. 9.5 m B. 90 m C. 187.9 m D. 150 m