3 years ago

Help i don't know what the answer is

Mathematics

1 answer:

____ [38]3 years ago

3 0

The answer to that is -4!!

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Given the function y=2x^3-3x^2. Find the average value of the function over the interval (-1,3)

MArishka [77]

Answer:

Average value of the function over the interval is 3.

Step-by-step explanation:

Average value of the function y = 2x³ - 3x² over the interval (-1, 3) will be defined by the area under curve for the given interval divided by width of the interval.

A = $\int\limits^3_ {-1} \, (2x^{3}-3x^{2})dx$

= $[\frac{2x^{4}}{4}-\frac{3x^{3}}{3}]^{3}_{(-1)}$

= $[\frac{x^{4}}{2}]^{3}_{-1}-[x^{3}]^{3}_{-1}$

= $[\frac{3^{4}-(-1)^{4} }{2}]-[3^{3}-(-1)^{3}]$

= $[\frac{81-1}{2}]-[27+1]$

= $40-28$

= 12

Width of the interval = 3 - (-1) = 4

Average value = $\frac{12}{4}=3$

Therefore, average value of the function over the given interval is 3.

8 0

4 years ago

Can someone please answer my question

PtichkaEL [24]

Answer:

Step-by-step explanation:

6 0

3 years ago

The bionomial (x + 5) is a factor of x2 + 8x + 15. What is the other factor

Sliva [168]

Answer:(x+3) is the other factor

Step-by-step explanation:

7 0

3 years ago

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How do you solve five times a number decreased by 18 minus 4 times the same number is -36

Sladkaya [172]

$x-searched\ number\\\\5x-18-4x=-36\\\\5x-4x=-36+18\\\\x=18\\\\Searched\ number\ is\ 18.$

8 0

3 years ago

Now helpp!

Rina8888 [55]

Step-by-step explanation:

Multiply both by 100 (same number of 0s as the most decimals places in either of the starting numbers.)

so you get 8350/625

then it's normal from there

4 0

3 years ago

Help i don't know what the answer is ​

Help i don't know what the answer is