Provide an appropriate response.Find a polar equation for the parametric equations x = 5 cos2 ? , y = 5 cos ? sin ?
A. x2 + y2 = 25 cos2 ?
B. r = 5 sin ?
C. r = 5 cos ?
D. y = x tan ?
Answer: C
Mathematics
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Determine whether the improper integral converges or diverges.
A. Diverges B. Converges
Mathematics
Provide an appropriate response.A surveyor measures the distance across a lake, BC, by laying off a right triangle ABC, with C a right angle. She measures the distance from A to C as 400 feet and angle A as 25 degrees. How far is it across the lake? Round to the nearest whole foot.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Subtract.
A. 1500 B. 1370 C. 500 D. 1490
Mathematics
Find the probability.One digit from the number 9,848,778 is written on each of seven cards. What is the probability of drawing a card that shows 9, 8, or 4?
A. 
B. 
C. 
D. 
Mathematics