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Elden [556K]
3 years ago
8

9. What is the value to the solution for the system of equations y = -5X-9 and y = 2x + 5.​

Mathematics
1 answer:
sertanlavr [38]3 years ago
5 0

9514 1404 393

Answer:

  (x, y) = (-2, 1)

Step-by-step explanation:

Equate the two expressions for y.

  -5x -9 = 2x +5

  -14 = 7x . . . . . . . .add 5x-5

  -2 = x . . . . . . . . . divide by 7

Then ...

  y = 2(-2) +5 = 1

The solution is (x, y) = (-2, 1).

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Xyz-4 xy+5 from 5 from 5xyz+xy+3yz_4​
Inessa [10]
<h3>Answer</h3>

Page No 7.13:

Question 1:

Add the following:

(i) 3x and 7x

(ii) −5xy and 9xy

ANSWER:

We have

(i) 3x + 7x = (3 + 7)x = 10x

(ii) -5xy + 9xy = ( -5 + 9)xy = 4xy

7 0
3 years ago
Help please on linear math
umka21 [38]

Answer:

D

Step-by-step explanation:

y=\frac{-9x-5}{-8}

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3 0
3 years ago
Read 2 more answers
If you know how to solve this, Please answer it. Thank You
pantera1 [17]
G(x) = 13
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6 0
3 years ago
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Jessica is voting for dancers in a contest. She votes for the first contestant 5 times, the second contestant 9 times, and the t
ikadub [295]

Answer:

  44 votes

Step-by-step explanation:

The fourth contestant will get 17 votes (4 more than the 3rd contenstant). The total votes cast are then ...

  5 + 9 + 13 + 17 = 44

_____

"This pattern" seems to be that each contestant gets 4 more votes than the one before.

8 0
3 years ago
Write the equation in standard form for the circle with center (-5, 3) and radius 10.
Vladimir [108]

Answer:

x² + y² +10x -6y - 69 = 0

Step-by-step explanation:

We need to write the standard equation of circle with , centre (-5,3) and radius 10 unit . The Standard equation of the circle ⭕ is ,

=> ( x - (-5))² + (y -3)² = r²

=> ( x +5)² + (y-3)² = 10²

=> x² + 25 + 10x + y² +9-6y = 100

=> x² + y² +10x -6y + 31 = 100

=> x² + y² +10x -6y - 69 = 0

<h3>• Hence the equation of the circle is x² + y² +10x -6y - 69 = 0.</h3>
8 0
3 years ago
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