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2 years ago

Which of the following statements is the only sentence that is error-free?

Mathematics

1 answer:

Ray Of Light [21]2 years ago

5 0

I don’t really know what the answer is

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Evaluate the indefinite integral. (Use C for the constant of integration.) sin(10x) 1 cos2(10x) dx

Schach [20]

Answer:

The result of the integral is $-\frac{\cos^3{10x}}{30} + C$

Step-by-step explanation:

We are given the following integral:

$\int \sin{(10x)}\cos^{2}{(10x)} dx$

I am going to solve by substitution, using $u = \cos{10x}$ , so $du = -10\sin{10x}dx, dx = -\frac{du}{10\sin{10x}}$ . So, we have

$-\frac{1}{10} \int u^2 du$

Which has the following result:

$-\frac{u^3}{30} + C$

Going back to x, the result of the integral is

$-\frac{\cos^3{10x}}{30} + C$

5 0

3 years ago

Turn these into Standard Form, pls give the steps.

ivanzaharov [21]

Answer: hi hello how are you I’m fine thank you

Step-by-step explanation:

7 0

3 years ago

Can u help me understand this and solve it im so confused

kaheart [24]

Answer:

what is the topic?

Step-by-step explanation:

3 0

2 years ago

Piper is deciding whether she should pursue an education in engineering or in public communications. She has researched that a p

arlik [135]

Answer:

A public communications director would make $1,196,800 over a period of 20 years.

Step-by-step explanation:

The median salary of an engineer is $73,400 per year.

Piper has researched that a public communications director makes $13,560 less than this. (so we need to take this amount from the salary of an engineer)

Therefore, we would have that a public communications director would make

73,400 - 13,560 = $59, 840 per year

Now, the problem asks us how much a public communications director will make over a period of <u>20 years</u>, thus, we have to multiply the amount she will get per year by 20.

Thus, over 20 years she would make: <u>59,840 x 20</u> = $1,196,800

3 0

3 years ago

Been having trouble figuring this out. Please help!

sveta [45]

The answer should be 14

6 0

3 years ago