Solve the problem by estimating.Linda scored 72, 95, 80, 78, 64, and 100 on her calculus tests. Round each score to the nearest ten to estimate her total score.
A. 500
B. 470
C. 480
D. 490
Answer: D
Mathematics
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Find the volume under the surface of the specified figure. z = 2xy; R = {(x, y): 0 ? x ? 5, 0 ? y ? 2}
A. 200 B. 50 C. 100 D. 25
Mathematics
Determine which size is the best buy.9 oz for $1.444
oz for $1.53
A. 4
oz
B. 9 oz
C. Equal value
D. Not enough information
Mathematics
Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = 2 sin t, y = 5 cos t, 0 ? t ? 2?
A. L = 23.01
B. L = 15.71
C. L = 26.22
D. L = 2?
Mathematics
Add or subtract. Write the answer in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics