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3 years ago

4 If angle A = x + 5, angle B = 2x – 35, and angle C = 3x, what is the value of x

Mathematics

1 answer:

nirvana33 [79]3 years ago

6 0

Need more information. Is this a triangle? Can you attach a picture?

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What is an equation in point-slope form of the line that passes through (-7.1) and (-3.9)?

forsale [732]

Answer:

$y-1=2(x+7)$

Step-by-step explanation:

Point-slope form: $y-y_1=m(x-x_1)$ where a given point is $(x_1,y_1)$ and the slope is $m$

1) Find the slope of the line (m)

Slope = $\frac{y_2-y_1}{x_2-x_1}$ where the given points are $(x_1,y_1)$ and $(x_2,y_2)$

Plug in the points (-7,1) and (-3,9)

$= \frac{9-1}{-3-(-7)}\\= \frac{8}{-3+7}\\= \frac{8}{4}\\= 2$

Therefore, the slope of the line is 2. Plug 2 into the equation as m:

$y-y_1=2(x-x_1)$

2) Plug one of the given points into the equation

We plan either plug in (-7,1) or (-3,9) and it would work either way. Below you can see the equation plugging in the point (-7,1):

$y-1=2(x-(-7))\\y-1=2(x+7)$

I hope this helps!

3 0

3 years ago

If the triangle is isosceles, then the triangle doesn’t have 3 sides in common. True or False

PIT_PIT [208]

Answer:

True

Step-by-step explanation:

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3 years ago

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Find the value of Q in the following system so that the solution to the system

zalisa [80]

Answer:

Q = -6

Step-by-step explanation:

We assume your equations are ...

x -3y = 4
2x +Qy = 8

If you multiply the first equation by 2, it becomes ...

2x -6y = 8

In order for the solution to the system to match the first line, the second equation must be dependent on the first. That is, the second equation must match the one we just found. In order for that to be the case, we must have ...

2x -6y = 8

2x +Qy = 8 ⇒ Q = -6

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3 years ago

What is the mode of this data set?

earnstyle [38]

12 the mode is 12 because It occurs the most

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2 years ago

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What is the unit digit of (3)100

seropon [69]

The answer would be 300.

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3 years ago