Perform the indicated operation. Simplify if possible.
? 
A. 
B. 
C. 
D. 
Answer: B
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Parametric equations and and a parameter interval for the motion of a particle in the xy-plane are given. Identify the particle's path by finding a Cartesian equation for it. Graph the Cartesian equation. Indicate the portion of the graph traced by the particle and the direction of motion.x = 2t + 3, y = 6t + 12, -? ? t ? ?
A. y = 3x - 3
Entire line, from left to right
B. y = 3x - 3
Entire line, from right to left
C. y = 3x + 3
Entire line, from left to right
D. y = 3x + 3
Entire line, from right to left
Write the English phrase as an algebraic expression. Let the variable x represent the number.the quotient of 39 and the product of a number and -4
A. 
- 4
B. 
C. 
D. -156x
Solve the problem.Kimberly invested 
in her savings account for 4 years. When she withdrew it, she had 
. Interest was compounded continuously. What was the interest rate on the account? Round to the nearest tenth of a percent.
A. 3.4% B. 3.3% C. 3.55% D. 3.5%
Perform the indicated conversion between American and metric units of length.29 kilometers to miles (Round to the nearest tenth.)
A. 30.7 B. 18.0 C. 46.7 D. 27.4