Solve the problem.A box contains 28 widgets, 4 of which are defective. If 4 are sold at random, find the probability that (a) all are defective (b) none are defective.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Answer: C
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Find the flux of the vector field F across the surface S in the indicated direction.F = 5xi + 5yj + z4k; S is portion of the cylinder x2 + y2 = 4 between z = 0 and z = 1; direction is away from the z-axis
A. 20 B. 40? C. -40? D. 40
Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.a = 46 ftb = 54 ftc = 62 ft
A. 1508 ft2 B. 134 ft2 C. 1809 ft2 D. 1206 ft2
Write the formula using the "language" of variation. I = PRT, where I is the simple interest on a principal of P dollars invested for T years at an interest rate of R per year
What will be an ideal response?
Estimate the sum or difference by rounding each number to the nearest hundred. 5241 7614+ 3835
A. 16,700 B. 18,000 C. 16,600 D. 16,000