Find the perimeter (P) and area (A) of the figure.
A. P = 90, A = 320
B. P = 48, A = 350
C. P = 35, A = 507.5
D. P = 377, A = 640
Answer: A
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Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.2x - 8y + 9z = -5 and -6x - 9y + 3z = 4
A. 1.549 rad B. 0.883 rad C. 0.627 rad D. 0.688 rad
Solve the problem.Find the value of a retirement savings account paying an APR of 6.2% after 40 years (contributions made at the end of each year, including the last year) when the annual contribution is $2700. Round your answer to the nearest cent.
A. $439,457.86 B. $411,259.75 C. $469,404.24 D. $486,451.91 E. $434,574.99
Perform the indicated operation and write the answer in lowest terms. 
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- 
A. - 
B. 
C. 
D. 
Find the real solutions, if any, of the equation. Use the quadratic formula.16x2 - 64x + 64 = 0
A. 
B. 
C. 
D. no real solution