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Inessa05 [86]
3 years ago
7

What is the value of f(x) when x = -1 f(x) = 2* + 5

Mathematics
1 answer:
LenaWriter [7]3 years ago
7 0
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15 percent of 9 dollars is $?
Nataly_w [17]

Answer:

pretty sure it's 1.35

Step-by-step explanation:

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If a sprinkler Waters 1/20 of a lawn in 1/5 of an hour, how much time will it take to water the entire lawn?
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Use the Midpoint Rule and the given data to estimate the value of the integral I. (Give the answer to two decimal places.)
svlad2 [7]

Answer:

a) integral = 24.72

b) |Error| ≤ 0.4267

Step-by-step explanation:

a)

The integral:

\int_{0}^{3.2} f(x) dx

can be  approximated with the midpoint rule, as follows:

6.7*(0.8 - 0.0) + 8.9*(1.6 - 0.8) + 6.9*(2.4-1.6) + 8.4*(3.2 - 2.4) = 24.72

(that is, all the intervals are 0.8 units length and f(x) is evaluated in the midpoint of the interval)

b)The error bound for the midpoint rule with <em>n</em> points is:

|Error| ≤ K*(b - a)^3/(24*n^2)

where <em>b</em> and are the limits of integration of the integral and K = max |f''(x)|

Given that -5 ≤ f''(x) ≤ 1, then K = 5.  Replacing into the equation:

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5 0
3 years ago
The blue and orange lines represent a system. Use the
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Answer:

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Answer:

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Step-by-step explanation:

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3 years ago
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