Answer the question about the given function.Given the function f(x) = -4x2 - 8x - 4, list the y-intercept, if there is one, of the graph of f.
A. -16
B. -12
C. -4
D. 0
Answer: B
Mathematics
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Evaluate the surface integral of G over the surface S.S is the plane x + y + z = 4 above the rectangle 0 ? x? 1 and 0 ? y ? 3; G(x,y,z) = 2z
A. 12
B. -18
C. 30
D. 18
Mathematics
Decide whether or not the given equation is an identity.
= sin ? tan ?
A. Yes B. No
Mathematics
The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = 8 sin t - cos tFind the body's velocity at time t = ?/4 sec.
A. 
m/sec
B. - 
m/sec
C. 
m/sec
D. - 
m/sec
Mathematics
Solve the problem.The sum of an integer and its reciprocal is 
. Find the integer.
A. 8 B. 9 C. 82 D. 10
Mathematics