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Westkost [7]
1 year ago
8

Solve the following equation for X. 12r² + 24 = 0

Mathematics
1 answer:
Gelneren [198K]1 year ago
4 0

Answer:

Isolate the variable by dividing each side by factors that don't contain the variable.

r=√−200x

r=−√−200x

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△ABC≅△DEF, BC=4x−12, and EF=−3x+16. Find x and EF.
kirill [66]

x = 4 and EF = 4 ⇒ 3rd answer

Step-by-step explanation:

If two triangles are congruent, then

1. Their corresponding sides are equal

2. Their corresponding angles are equal

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∵ △ ABC ≅ △ DEF

∴ AB ≅ DE

∴ BC ≅ EF

∴ AC ≅ DF

∵ BC = 4 x - 12

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∵ BC = EF

∴ 4 x - 12 = -3 x + 16

Let us solve the equation to find x

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- Add 12 to both sides

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- Divide both sides by 7

∴ x = 4

Substitute the value of x in the expression of EF

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∵ x = 4

∴ EF = -3(4) + 16 = -12 + 16

∴ EF = 4

x = 4 and EF = 4

Learn more:

You can learn more about congruence of Δs in brainly.com/question/3202836

#LearnwithBrainly

3 0
3 years ago
The difference between seven times a number and 9 is equal to five times
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Look at the picture above, it explains everything

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