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3 years ago

How to know if a triangle is an equalatirral, isoscles, or obtuse?

Mathematics

1 answer:

ikadub [295]3 years ago

4 0

Equilateral: all sides are the same length
isosceles: two sides are the same length
obtuse: there is 1 obtuse angle

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Given the following information, write the equation of the line in slope-intercept form. Slope = -8 and y-intercept = 4

Montano1993 [528]

Answer:

y = -8x + 4

Step-by-step explanation:

Using the y = mx +b for the slope intercept form, the m stands for the slope and the b stands for the y-intercept.

In this case, the slope is -8 and the y-int is 4 so we naturally plug those in

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2 years ago

Find the slope (-1,7),(-6,1)

natta225 [31]

Answer: m = 6/5

Step-by-step explanation:

The Formula to find m is m = y2 - y1 / x2 - x1.

So for this problem I did 7 - 1 / -1 - (-6) which would equal 6/5.

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2 years ago

Whats 1/3 of 2/4

lara31 [8.8K]

Answer:

0.16666666666 or 16666666666/100000000000

Step-by-step explanation:

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2 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

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

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2 years ago

Tim drives at an average speed of 80km per hour for 3 hours and 45 minutes. How many kilometers does Tim drive

anastassius [24]

Answer:

Distance = (Average speed) * Time = 80 km/h * (3 hours 45 minutes) = 80 km * 3 3/4 hours = 300 kilometers.

Step-by-step explanation:

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2 years ago