Determine the sign (positive or negative) of the given value without use of a calculator.cos 190°
A. Negative
B. Positive
Answer: A
Mathematics
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Provide an appropriate response.Find 
at t = 0 for the function w = sin(x) cos(y) ln(z) where x = 2t2 + 10t + 
, y = t, z = e7t.
A. 7e7 B. 7 C. 1 D. 14
Mathematics
Find the flux of the vector field F across the surface S in the indicated direction.F(x, y, z) = zk , S is the surface of the sphere x2 + y2 + z2 = 1 in the first octant , direction away from the origin
A. 
?
B. 0
C. 
?
D. 
?
Mathematics
Identify as an equation or an expression.
x + 7 - 
x - 8
A. Equation B. Expression
Mathematics
Use symmetry to evaluate the integral.
A. - 
B. 
C. 0
D. 
Mathematics