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Shalnov [3]
2 years ago
12

Can someone help my please I need to do this fast

Mathematics
2 answers:
densk [106]2 years ago
8 0

Answer:

(-3, 8)

Step-by-step explanation:

7x-14y=-133\\35x+14y=7

42x=-126

x=-126/42=-3

5(-3)+2y=1\\-15+2y=1

2y=1+15\\2y=16\\y=16/2=8

I hope this help you

klio [65]2 years ago
5 0

Answer:

1 and 4

Step-by-step explanation:

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Find the size of the angle <br> 3<br> x<br> .
AlexFokin [52]

Answer:

Given - Two angles measures 2x and 3x

To find - size of 3x

Solution -

2x + 3x = 360° ( Make reflex angle )

5x = 360°

x = 360/5

x = 72°

3x = 3 * 72 = 216°

8 0
2 years ago
Is 1.66666667 Rational or irrational
devlian [24]

Answer:

Rational.

Step-by-step explanation:

1.666... can be expressed as \frac{5}{3}.

Hence it is rational.

4 0
3 years ago
Read 2 more answers
What is the answer 7÷5,631 eqall
otez555 [7]
7/5,631=0.0012431185
3 0
2 years ago
I need help with this. Thanks <br><br><br> I need to find the degree
scoundrel [369]

Answer:

  119.05°

Step-by-step explanation:

In general, the angle is given by ...

  θ = arctan(y/x)

Here, that becomes ...

  θ = arctan(9/-5) ≈ 119.05°

_____

<em>Comment on using a calculator</em>

If you use the ATAN2( ) function of a graphing calculator or spreadsheet, it will give you the angle in the proper quadrant. If you use the arctangent function (tan⁻¹) of a typical scientific calculator, it will give you a 4th-quadrant angle when the ratio is negative. You must recognize that the desired 2nd-quadrant angle is 180° more than that.

__

It may help you to consider looking at the "reference angle." In this geometry, it is the angle between the vector v and the -x axis. The coordinates tell you the lengths of the sides of the triangle vector v forms with the -x axis and a vertical line from that axis to the tip of the vector. Then the trig ratio you're interested in is ...

  Tan = Opposite/Adjacent = |y|/|x|

This is the tangent of the reference angle, which will be ...

  θ = arctan(|y| / |x|) = arctan(9/5) ≈ 60.95°

You can see from your diagram that the angle CCW from the +x axis will be the supplement of this value, 180° -60.95° = 119.05°.

3 0
3 years ago
Any help would be cool thaanks
Nikolay [14]

Answer:

I Can help you! what do y need help on?

Step-by-step explanation:

6 0
3 years ago
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