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nasty-shy [4]
3 years ago
6

Solve the following system of equations:

Mathematics
2 answers:
Nikitich [7]3 years ago
7 0

Answer:

(2, -1)

Step-by-step explanation:

5x + y = 9...........1

3x + 2y = 4.........2

from 1 y = 9 - 5x..........3

put eqn 3 in 2

3x + 2( 9 - 5x) = 4

3x + 18 - 10x =4

-7x = 4 - 18

-7x = -14

x = 14/7

x =2

put the value of x in equation 3

y = 9 - 5(2) = 9 -10 = -1

x = 2 and y = -1

zheka24 [161]3 years ago
5 0
I hope this helps. I used the substitution method

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I'm stuck, plsss help ASAPP!!! :))
Bogdan [553]

Answer:

15 units

Step-by-step explanation:

d \:  =  \sqrt{(x2 - x1) ^{2}  + (y2 - y1) ^{2} }

d = 14.866

d = 15

7 0
3 years ago
What is the y intercept of (-4,6) and (1,-9)​
vladimir1956 [14]

Answer:

what is the y intercept of (-4,6) and (1,-9)​ : (3,-12)

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Apply the distributive property to factor out the greatest common factor.<br> 4+10=
almond37 [142]

4 + 10 = 2 x 2 + 2 x 5 = 2 x (2 + 5)

4 0
2 years ago
In the triangle ABC , Angle A = 46° and Angle B = 83°. How large is the exterior angle at C?
lisabon 2012 [21]

Answer:

180 - 46 - 83 = 51 is the measure of angle C

the exterior angle at angle C, and angle C, are supplementary. since angle C is 51 because of the interior angle triangle sum theorem, then the exterior angle is: 180 -51 = 129 degrees.

Step-by-step explanation:

I hope this helps :)

4 0
3 years ago
How to solve X^4-19x^2+48=0
ZanzabumX [31]
Two numbers that add up to -19 and multiply to 48 are -16 and -3:

(x^4-19x^2+48)=0\\(x^2-16)(x^2-3)=0\\(x+4)(x-4)(x^2-3)=0

So, the solutions come from each parentheses:  x+4=0, x-4=0, and x^2-3=0.

x+4=0
x = -4

x-4=0
x = 4

x^2-3=0
x^2 = 3
x = +/- √3

So, the solutions are -4, -√3, √3, and 4.
4 0
3 years ago
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