Identify the place value of the underlined digit.0.50
A. Ones place
B. Tenths place
C. Tens place
D. Zero place
Answer: A
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Set up the iterated integral for evaluating 
over the given region D. DD is the right circular cylinder whose base is the circle 
in the xy-plane and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
Solve the problem.Under standard conditions, molecules of a gas collide billions of times per second. If each molecule has diameter t, the average distance between collisions is given by 
where n, the volume density of the gas, is a constant. Find 
.
A. 
= 
B. 
= - 
C. 
= 
D. 
= - 
Find the product.(2z + 7)(5z + 7)
A. 10z2 - 21z + 49 B. 7z2 + 14 C. 10z2 + 49z + 49 D. 10z2 + 49
Solve the problem.A guy wire to a tower makes a 67° angle with level ground. At a point 36 ft farther from the tower than the wire but on the same side as the base of the wire, the angle of elevation to the top of the tower is 
Find the length of the wire (to the nearest foot).
A. 53 feet B. 48 feet C. 96 feet D. 101 feet