Pls show work I need the work. Thx

Mathematics

1 answer:

Ainat [17]2 years ago

5 0

Sorry i can’t quite see the image can you do another one

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Find the difference between <br> 10 and −25 (Hint: Subtract the numbers in the order given.)

gladu [14]

The difference is -15

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3 years ago

Point C is between points A and B on Find the missing length. AC = 12, AB = 34, CB = _____ a. 29 c. 28 b. 22 d. 32

JulsSmile [24]

Length of CB = Length of AB -AC
= 34 - 12 = 22
therefore the answer will be b.22

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3 years ago

How do you integrate arctan(x dx? i think that if you simplify the integral you get:?

Temka [501]

Integration by parts will help here. Letting $u=\arctan x$ and $\mathrm dv=\mathrm dx$ , you end up with $\mathrm du=\dfrac{\mathrm dx}{1+x^2}$ and $v=x$ . Now

$\displaystyle\int\arctan x\,\mathrm dx=uv-\int v\,\mathrm du$
$\displaystyle\int\arctan x\,\mathrm dx=x\arctan x-\int\frac x{1+x^2}\,\mathrm dx$

For the remaining integral, setting $y=1+x^2$ gives $\dfrac{\mathrm dy}2=x\,\mathrm dx$ , so

$\displaystyle\int\frac x{1+x^2}\,\mathrm dx=\frac12\int\frac{\mathrm dy}y=\frac12\ln|y|+C=\frac12\ln(1+x^2)+C$

Putting everything together, you end up with

$\displaystyle\int\arctan x\,\mathrm dx=x\arctan x-\frac12\ln(1+x^2)+C$

6 0

2 years ago

Walter is 43 years old his daughter Paulette is 7. In how many years will Paulette be one-third of Walters age

Ksju [112]

The answer is 14 when rounded to the nearest whole number, to get this you simply must divide 43 by 3 which equals to 14.333.

8 0

3 years ago

BRAINLIEST !!! please dont answer if you do not know it

postnew [5]

Answer:

The answer is A.

Step-by-step explanation:

There are Four 6's, Four 4's, Seven 5's, One 2, Two 3's, Two 7's, and One 8.

Hope this helps :))

7 0

3 years ago