The area of a rectangle 3 by 4 is the product of its perimeter and
(a) 6/7
(b) n
(c) 12/7
(d) 3/4
(e) None of these is correct.
(a) 6/7
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Solve the indicated equation analytically.A coil of wire rotating in a magnetic field induces a voltage given by 
where t is time in seconds. Find the smallest positive time to produce a voltage of 10
.
A. 2.8 s B. 2.8? s C. 3 s D. 3? s
Solve the problem.A red-tailed hawk is perched on top of a billboard on the side of the road. The angle of depression from the hawk to a field mouse on the ground is 40°26'. The distance from the base of the billboard to the mouse is 26 feet. How tall is the billboard? Round your answer to the nearest foot.
A. 22 ft B. 28 ft C. 24 ft D. 26 ft
Find the exact value by using a half-angle identity.cos 22.5°
A. - 
B. 
C. - 
D. 
Solve the problem.The length of the diagonal of a rectangle is given by 
where L and W are the length and width of the rectangle. What is the length of the diagonal, D, of a rectangle that is 16 inches long and 2 inches wide? Round your answer to the nearest tenth of an inch, if necessary.
A. 5.7 inches B. 16.1 inches C. 4.2 inches D. 15.9 inches