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3 years ago

16pts for help with this math question

Mathematics

2 answers:

diamong [38]3 years ago

6 0

Y=76 x-18
should be the anwer.

krek1111 [17]3 years ago

6 0

Y=1x- 1 (y=1/1x-1) since the difference from 3 to 4 is one and the difference from 4 to 5 is one, the slope would be one as well. as for the y intercept, you just have to go backwards on the table until 0 is on the x side (sorry if its explained horribly)

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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

3 years ago

Solve that for me :)

gavmur [86]

Answer:

2/5

Step-by-step explanation:

Out of the available options on the spinner, only 1 and 5 are factors of 25.

=> Outcomes = 2

=> Total outcomes = 5

P (factor of 25) = 2/5

Hope it helps.

5 0

2 years ago

Read 2 more answers

WHAT VAULE MAKES THE TRIANGLE SIMILAR A.1.5 <br> B.5 c .6 d .9

alukav5142 [94]

C.6 is your answer. half of 4 is 2, and your smaller triangle is 2 and 3, half of 6 is 3.

3 0

3 years ago

If AB = 13, BC = 9, and CA = 17, list the angles of ABC in order from smallest to largest.

svp [43]

Across the largest side is going to be largest angle, and across the smallest side -smallest angle.

Sides:

BC = 9 < AB = 13 < CA = 17.

Angles that are across sides: A < C < B.

Answer is d- A C B.

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3 years ago

True or False

matrenka [14]

Answer:

for saken it is better to use ordinary calculator than cp because they have a big difference. That's all I can say

8 0

2 years ago