The lengths of the sides of a triangular parcel of land are approximately 400 feet, 700 feet, and 800 feet. Approximate the area of the parcel.
?
A. 180,710.4 ft2
B. 139,977.7 ft2
C. 94,372.9 ft2
D. 207,620.4 ft2
E. 108,426.2 ft2
Answer: B
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Suppose u and v are differentiable functions of x. Use the given values of the functions and their derivatives to find the value of the indicated derivative.u(1) = 3, u '(1) = -6, v(1) = 7, v '(1) = -2.
(uv) at x = 1
A. 36 B. -48 C. 48 D. -32
Find the volume area of the figure. Use 3.14 for ?. Round the answer to the nearest hundredth when appropriate.
A. 314 cu. ft B. 1256 cu. ft C. 125.6 cu. ft D. 251.2 cu. ft
Provide an appropriate response. Under which of the following conditions of k will this quadratic, x2 + 8x + k = 0, have real-number, but unequal roots?
A. k ? 16 B. k ? 16 C. k > 16 D. k < 16
Find the value of d2y/dx2 at the point defined by the given value of t.x = tan t, y = 5 sec t, t = 
A. - 
B. 5
C. 
D. - 