A drawer contains 6 blue socks, 8 white socks, and 1 purple sock. If a sock is drawn and not replaced, what is the probability o
1 answer:
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Answer:
S'(x)=-0.006x2+0.8x+9
Step-by-step explanation:
The rate of change of the sales S(x) with respect to the amount of money spent on advertising x is then the derivative of S(x) with respect to x. What we have to calculate is S'(x).
We know that the derivative of is
(where a is a constant), and the derivative of a sum is the sum of the derivatives, so we can calculate the derivative of each term independently:
S'(x)=(−0.002x3 + 0.4x2 + 9x + 500)'=(−0.002)(3)x2 + (0.4)(2)x + 9
Which means:
S'(x)=-0.006x2+0.8x+9
Answer:
slope = -
Step-by-step explanation:
the slope of the secant line in the closed interval [a, b ] is
slope =
here [a, b ] = [1, 4 ]
f(b) = f(4) = - + 5 = - 16 + 5 = - 11
f(a) = f(1) = - + 5 = - 2 + 5 = 3
slope = =
= -