Find the integer pair that has the given product and sum.Product: 8Sum: -6
A. -2, -4
B. -2, -6
C. 2, 4
D. -2, 4
Answer: A
Mathematics
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Find the unit tangent vector of the given curve.r(t) = (2 - 2t)i + (2t - 6)j + (7 + t)k
A. T = - 
i + 
j + 
k
B. T = 
i - 
j - 
k
C. T = 
i - 
j - 
k
D. T = - 
i + 
j + 
k
Mathematics
Solve.Determine the area of a circular enclosure and a square enclosure made with 778 feet of fence. Use 
A. Circular: 32,835 ft2; square: 37,830 ft2 B. Circular: 48,167 ft2; square: 151,321 ft2 C. Circular: 32,835 ft2; square: 151,321 ft2 D. Circular: 48,167 ft2; square: 37,830 ft2
Mathematics
Simplify the factorial expression.
A. 5n - 1
B. 
C. 
D. 5n
Mathematics
Use a calculator to find the function value to four decimal places.tan (1.27)
A. 0.9551 B. 3.2236 C. 0.2963 D. 3.3752
Mathematics