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a_sh-v [17]
4 years ago
7

I need help to figure out x.

Mathematics
2 answers:
lesantik [10]4 years ago
4 0
X would be 7 because you set 11x - 2 equal to 75 degrees (11x - 2 = 75), add 2 to both sides (11x - 2 + 2 = 75 + 2) to get 11x = 77, then divide both sides by 11   (11x / 11 = 77 / 11) to get x = 7
balu736 [363]4 years ago
3 0
Because the angles are congruent, they'll have same measure of angle. They would both be 75°. The equation for this situation would be
75=11x-2
77=11x
7=x

x is 7
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5x +7 y=-17<br> 4x – 3y = -5<br> Substitute.
Bond [772]

Answer:

(x,y) = (-2, -1)

Step-by-step explanation:

We start off by substituting the value of "x".

5x+7y=-17

x=-\frac{5}{4} + \frac{3}{4}y

We then solve 55(-\frac{5}{4}+\frac{3}{4}y ) +7y= -17

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3 years ago
How do I factor out a constant before factoring out a quadratic? <br>Factor completely: 3w^2-3w-90
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3w^2-3w-90 =0 \ \ \:3 \\ \\w^2- w-30 =0 \\ \\a=1 , \ b= -1 , c= -30 \\ \\\Delta =b^2-4ac = (-1)^2 -4\cdot1\cdot (-30) =1+120=121 \\ \\w_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{1-\sqrt{121}}{2 }=\frac{ 1-11}{2}=\frac{-10}{2}=-5

w_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{1+\sqrt{121}}{2 }=\frac{ 1+11}{2}=\frac{12}{2}=6 \\ \\ Answer:\\ \\ w^2- w-30 =(x+5)(x-6)
 

3 0
3 years ago
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