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labwork [276]
3 years ago
14

What is the solution to this system of equations? 4x + 5y = 7 3x – 2y = –12 The solution is .

Mathematics
2 answers:
babunello [35]3 years ago
8 0

Answer:

(-2,3)

Step-by-step explanation:

Blababa [14]3 years ago
3 0

Answer:

(-2,3)

Step-by-step explanation:

got none

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Choose all the quadratic pairs that are equivalent. 1 2 (x + 4)2 = 2 x2 + 8x + 15 = 0 (x − 5)2 = 1 x2 − 10x + 26 = 0 3(x − 1)2 +
Artemon [7]

Answer:

Only equation 1 and 2 are equal.

Step-by-step explanation:

2 (x + 4)2 = 2

2( x² + 8x+ 16) = 2               Applying the square formula

2x² + 16x+ 32 = 2

2x² + 16x+ 32 -2= 0

2x² + 16x+ 30 = 0

2( x² + 8x+ 15)= 0           Taking 2 as common

x2 + 8x + 15 = 0------------eq 1

x2 + 8x + 15 = 0-------------eq 2

(x − 5)2 = 1

x²-10x+25= 1             Applying the square formula

x²-10x+25- 1= 0

x²-10x+24= 0-------------eq 3

x2 − 10x + 26 = 0 -------------eq 4

3(x − 1)2 + 5 = 0

3( x²-2x+1)+5= 0               Applying the square formula

3x²-6x+3+5= 0

3x²-6x+ 8= 0-------------eq 5

3x2 − 6x + 8 =1

3x2 − 6x + 8 -1=0

3x2 − 6x + 7 =0-------------eq 6

3 0
3 years ago
What “r” is equal to
ExtremeBDS [4]

2080 = π x r^2

2080/π = r^2

root of 2080/π = r

r is approximately 25.7

7 0
3 years ago
1+2^2 for brainliest + 40 points
IrinaK [193]

Answer:

5

Step-by-step explanation:

u do 2x2 cuz of the square root and add the 1

5 0
3 years ago
Solve the system of equations. 10y - 11x = -4 - 2y + 3x = 4​
dusya [7]

Answer:

(4,4)

Step-by-step explanation:

The intersection point of 10y-11x=-4 and -2y+3x=4 is (4,4) on a graph.

4 0
3 years ago
Given congruent triangles ΔABC ≅ΔDEF where AB = 11, BC = 5, and DE = 6x-7. Find the value of x.
Sidana [21]

Answer: Congruent angles are angles that have the same measure. ... y = 67 x = 180 – 67 = 113. 2. x = ______ y = ______. 3x – 5 = 127. +5 +5. 3x = 132 ... Find the measure of the angle and give the reason for knowing it. ... Solve for the unknown values: ... 2) AD. 3) AB. 4) BC. 24. In ΔABC, If CA ≅ CB and m∠A = 50, find the m∠B.

5 0
3 years ago
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