Classify the angle as acute, obtuse, right, or straight.
A. Acute
B. Right
C. Straight
D. Obtuse
Answer: A
Mathematics
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Find the slope of a line tangent to the given curve at the given point.y = 13 sin x; x = ?/3
A. - 
B. 
C. 
D. 
Mathematics
Change the numbers to their percent equivalents.3
A. 0.03% B. 300% C. 0.3% D. 150%
Mathematics
Solve the problem.In one country, it is estimated that in the year 2050, 2% of the population will be over 70. If the population of this country in 2050 is 289 million, how many people will be over 70?
A. 2.89 million B. 8.67 million C. 5.78 million D. 57.80 million
Mathematics
Find the length of the indicated portion of the curve.r(t) = (2cos t)i + (2sin t)j + 3tk, 0 ? t ? ?/2
A. 
?
B. 
?
C. 
?
D. 
?
Mathematics