Which of the following is not part of the process of making a parallelogram?
?
A. ?Using a straightedge and a compass.
B. ?Measuring length of lines.
C. ?Finding the intersection of two arcs.
D. ?Using a straightedge to measure the length of a line.
E. ?None of the above.
Answer: D
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Next year's value of quantity 1 is obtained by multiplying this year's value of quantity 1 by 0.75. Next year's value of quantity 2 is obtained by adding 0.75 to this year's value of quantity 1. Which of the two quantities are decaying exponentially? ?
A. Only quantity 1 B. Only quantity 2 C. Both quantity 1 and quantity 2 D. Neither quantity 1 nor quantity 2
Find the unit tangent vector T and the principal unit normal vector N. r(t) = (4 + t)i + (4 + ln(sec t))j - 9k, -?/2 < t < ?/2
A. T = (cos t)i + (sin t)j; N = (- sin t)i + (cos t)j B. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j C. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j D. T = (-cos t)i - (sin t)j; N = (-cos t)i + (sin t)j
Solve the problem.A piece of cheese weighing 
pound is to be divided into 8 equal portions. What will be the weight of each portion?
A. 
lb
B. 
lb
C. 
lb
D. 12 lb
Find the opposite of the expression.-8x+ 1
A. 8x - 1 B. -8x + 1 C. -8x - 1 D. 8x + 1