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3 years ago

Please help me plzzzzz

Mathematics

1 answer:

Lena [83]3 years ago

3 0

Answer:

6) B. Reflection over the y-axis, then reflection over the x-axis

7) B. The initial value of the function is the y-intercept of the line, 275

8) A. y = 45 - 6x

Step-by-step explanation:

6) See first attached file :)

7) Option A is incorrect because the rate of change/slope is "-20x" not just "-20." Option C is incorrect because the initial value/y-intercept is $275 and not $2. Option D is incorrect because it implies she doesn't withdraw $20 the first month, which wasn't mentioned in the question. Option B is the only one to apply to the graph. See second attached file for graph reference.

8) The question explains the function "y=6x+45" and that matches all options except for option A.

haha third time for this one

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First make a substitution and then use integration by parts to evaluate the integral. (Use C for the constant of integration.) x

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Answer:

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Step-by-step explanation:

Ok, so we start by setting the integral up. The integral we need to solve is:

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$\int (U-5)lnUdU=(\frac{U^{2}}{2}-5U)lnU-\int (\frac{U}{2}-5)dU$

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and now we can simplify:

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