Solve the problem.The variable z varies jointly as the 2.4 power of x and the 1.7 power of y. When 
and 
Approximate the constant of variation to three significant digits.
A. 5.16
B. 8.56
C. 6.66
D. 8.06
Answer: C
Mathematics
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Find T, N, and B for the given space curve.r(t) = (7 + t)i + (9 + ln(sec t))j - 7k, -?/2 < t < ?/2
A. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j ; B = -k B. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j ; B = -k C. T = (-cos t)i - (sin t)j; N = (-cos t)i + (sin t)j ; B = k D. T = (cos t)i + (sin t)j; N = (- sin t)i + (cos t)j ; B = k
Mathematics
Find the area.Find the area of the region bounded by the curve y = 9x-2, the x-axis, and on the left by x = 1.
A. 18
B. 81
C. 9
D. 
Mathematics
Find the exact function value.cos-1
A. 
B. 
C. 
D. 
Mathematics
Find the indicated quantity.Find the moment of inertia of a square plate of side a, with respect to one side, in terms of m, the mass of the area.
A. 
B. 
C. 
D. 
Mathematics