Estimate. Choose a rounding digit that gives one or two nonzero digits.1.6 × 4.75
A. 1
B. 0.4
C. 10
D. 4
Answer: C
Mathematics
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Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = 9xi + 9yj + 2k , S is the surface cut from the bottom of the paraboloid z = x2 + y2 by the plane 
direction away from the z-axis
A. 711? B. 747? C. 75? D. -1422?
Mathematics
Find the series' radius of convergence.
A. 2 B. 0 C. ?, for all x D. 1
Mathematics
Solve the equation. Express radicals in simplest form.x2 + 4 = 68
A. ±7 B. 8 C. 34 D. ±8
Mathematics
Establish the identity.cot ? ? sec ? = csc ?
What will be an ideal response?
Mathematics