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lyudmila [28]
2 years ago
8

Helppp pls, I cant seem to place them..

Mathematics
1 answer:
aleksandrvk [35]2 years ago
3 0
Subtract 5x from both sides, 7x+2=-26, subtract 2 from both sides, 7x=-28, divide both sides by 7, x=-4
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Three tickets to a concert cost $54. How much do 7 tickets cost? A. $58 B. $72 C. $108 D. $126
Ksju [112]
The answer is D $126,if three cost $54 that means one costs $18 and just multiply it with seven
7 0
3 years ago
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I need help please?!!
zysi [14]

Answer:

No, the expression is not linear because the highest power of x is 2.

5 0
3 years ago
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Solve x2 – 8x = 3 by completing the square. Which is the solution set of the equation?
vazorg [7]

Answer:

x = 4 ± \sqrt{19}

Step-by-step explanation:

Given

x² - 8x = 3

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 4)x + 16 = 3 + 16

(x - 4)² = 19 ( take the square root of both sides )

x - 4 = ± \sqrt{19} ( add 4 to both sides )

x = 4 ± \sqrt{19}

8 0
2 years ago
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Find the measure of angle A when two angles are congruent?
erica [24]

m∡A = 70º

1) Considering that the Sum of the interior angles within a triangle is always 180º

2) We can write the following, and solve for x

x+80 + x +80 +40 = 180

2x +160 +40 = 180

2x + 200 = 180

2x =180-200

2x= -20

x=-10

3) So since angle A = x +80, we can plug it into that the value of x

m∡A = x +80º

m∡A=-10+80

m∡A = 70º

4 0
11 months ago
Can someone please help me with question 2! <br> Please help I need it now
Zielflug [23.3K]
Tell me if you're still confused.

7 0
3 years ago
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