Provide an appropriate response.How do you know that f(x) = -3ex is concave down over every interval of x-values?
What will be an ideal response?
f''(x) = -3ex. This is always negative so f(x) is always concave down.
Mathematics
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Determine which labeled sections make up the indicated set.
C ? A ? B
A. t, s, v, n, o, p, r B. n, v, s, p C. v D. o
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Solve the problem.S and T are similar polygons. If the perimeter of S is 16, what is the perimeter of T?
A. 50 B. 40 C. 64 D. 80 E. none of these
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Find the difference quotient for the function and simplify it.f(x) = x2 + 6x
A. 2x + h B. 2xh + h + 6x C. 2x + h + 6 D. h + 6
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Graph the integers on a number line.-7, -5, -3, -1 
A. 
B. 
C. 
D. 
Mathematics