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Jlenok [28]
3 years ago
9

What is -2y + 10 + 2y - 8 simplified

Mathematics
2 answers:
Andru [333]3 years ago
8 0

Answer:

2

Step-by-step explanation:

-2y + 2y = 0

10 - 8 = 2

Naya [18.7K]3 years ago
5 0

Answer:

Step-by-step explanation:

Add the variables that go together (-2y+2y=0) these cancel each other out. Now add the remaining numbers 10-8=2. Answer=2

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the angle between two lines is 60 degree. if the slope of one of them is 1. find the slope of other line​
Degger [83]

Answer:

-3.73

Step-by-step explanation:

solution:

Given:

Angle between two lines=60⁰

slope of first line=1

Or, tanA=1

Or, A= tan inverse (1)

so, A=45⁰

so, angle of inclination of first line=45⁰

Now,

angle of inclination of second line= A+ 60⁰

= 45⁰+60⁰

=105⁰

so, slope of second line = tan105.

= -3.73

8 0
3 years ago
Will give Brainlyest. ASAP
crimeas [40]

Answer:

The correct answer is B. 36.87

Step-by-step explanation:

7 0
3 years ago
Find the slope of the line
dmitriy555 [2]
-5/5 do rise over run
4 0
2 years ago
Use the figure to decide the type of angle pair that describes <5 and <2
gregori [183]

Answer:

Step-by-step explanation:

8 0
2 years ago
Geometry :))), please help me
amm1812

Answer:

x = -5

Step-by-step explanation:

Since these two triangles are similar, the ratio between the corresponding lengths of each triangle will be the same.

This means the ratio between one side of each triangle (e.g. AD and DC) will be the same as the ratio between a different side of each triangle (e.g. BE and BC).

So, to create an equation for the sides which contain the unknown 'x', we must first find the ratio between the two sides by using a different set of sides.

On the right side we are given 9 for AD, and 18 for DC.

9/18 = 0.5

This means that the extra length of the larger triangle from the smaller one (AD) is half the length of the smaller triangle (DC). We can use this to make an equation for x:

If AD/DC = 0.5, then BE/EC will also = 0.5

BE = x+23

EC = x+41

Therefore:

\frac{x+23}{x+41} = 0.5

Now we can solve by multiplying both sides by x+41 to eliminate the fraction:

x+23=0.5(x+41)

Now we multiply out the brackets and move the terms to different sides:

x+23=0.5x+20.5

0.5x = -2.5

x = -5

And if we substitute the -5 into the equations:

-5+23 = 18

-5 + 41 = 36

We will see that -5 does indeed give us the same ratio between the lengths:

18/36 = 0.5

Hope this helped!

4 0
3 years ago
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