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labwork [276]
3 years ago
8

If angle 4 =2x+7 and. angle 8 =3x-13 find x for both equations ​

Mathematics
1 answer:
dybincka [34]3 years ago
8 0

Answer:

2x +3x =7-13=4+8

Step-by-step explanation:

5x= -6= 12

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If BCDE is congruent to OPQR then line DE is congruent to ___________? explain.
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QR. because if BCDE is congruent to OPQR then the sides and angles will be the same also by either sss, sas, asa, or aas depending on how the shape is.
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Answer:

x = 67

Step-by-step explanation:

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∠ CRQ and ∠ CRS are adjacent angles and supplementary, that is

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what would you have to do the graph to find hoe many eggs needed if the recipe was larger and called for 16 tablespoon of water
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3 years ago
Please Help Me!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
GuDViN [60]

Answer:

(-2, 11) and (2, 3)

Step-by-step explanation:

<u>Given system of equations:</u>

1) f(x) = x² - 2x + 3 ⇒ y = x² - 2x + 3

2) f(x) = -2x + 7 ⇒ y = -2x + 7

Solve Using the Substitution Method:

<u>Step 1:</u> Substitute the the first equation into the second.

⇒ x² - 2x + 3 = -2x + 7

<u>Step 2:</u> Solve for x.

x² - 2x + 3 = -2x + 7 [ Add 2x to both sides. ]

x² - 2x + 2x + 3 = -2x + 2x + 7

⇒ x² + 3 = 7 [ Subtract 3 from both sides. ]

x² + 3 - 3 = 7 - 3

⇒ x² = 4 [ Take the square root of both sides. ]

√x² = √4

x = ± 2

⇒ x = -2, x = 2

<u>Step 3:</u> Solve for y.

<em>Substitute the found x-values into one of the given equations.</em>

y = -2x + 7 ⇒ y = -2(-2) + 7 ⇒ y = 4 + 7 ⇒ y = 11

y = -2x + 7 ⇒ y = -2(2) + 7 ⇒ y = -4 + 7 ⇒ y = 3

The solutions to the system of equations are: (-2, 11) and (2, 3).

Learn more about system of equations here:

brainly.com/question/26094713

brainly.com/question/27850666

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2 years ago
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