Solve the logarithmic equation. Round to four decimal places.log7 x + log7 (x + 2) = 1
A. {-0.5858}
B. {0.4142}
C. {2.4142}
D. {-2.4142, 0.4142}
Answer: B
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Describe the graph of the polar equation.r2 = 36 rcos ? - 6r sin ? - 9
A. Parabola opening upward with vertex (36, -6) B. Circle with radius 18 and center (18, -3) C. Circle with radius 3 and center (36, -6) D. Parabola opening to the right with vertex (36, -6)
Calculate the direction of 
and the midpoint of line segment P1P2. P1(5, -2, 7) and P2(9, -5, 2)
A. 
i + 
j + 
k; 
B. 
i + 
j + 
k; 
C. 
i - 
j - 
k; 
D. 
i - 
j - 
k; 
Solve.If a flywheel with a 15-inch diameter rotates through an angle of 165° in 4.5 seconds, what distance does a point on the rim travel? What is the average angular speed of the flywheel? Round to the nearest hundredth.
What will be an ideal response?
Find the solution to the system by addition (elimination) method. 2x + 6y = -36 11x + 2y = 81
A. (11, -11) B. (-9, 9) C. (9, -9) D. (-2, 9)