2 years ago

Choose all the equations that are true if x=9

Mathematics

2 answers:

Pani-rosa [81]2 years ago

6 0

Answer:yr

Step-by-step explanation:rt5r

Ymorist [56]2 years ago

4 0

D it’s the answer !!

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The percent discout is 30% and the sale price is 42% what is the original price

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Answer: 54.6

Step-by-step explanation: 42 x 30% = 12.6 ( tax ) then 12.6 + 42 = 54.6

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If x > 0 and y < 0, where is the point (x, y) located?

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Answer:

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Step-by-step explanation:

x > 0 means towards right of the origin

y < 0 means below the origin

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Let 2004-02-01-02-00_files/i0200000.jpg. If 2004-02-01-02-00_files/i0200001.jpg is a complement of 2004-02-01-02-00_files/i02000

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Answer: The answer is (C) 180°.

Step-by-step explanation: Given that m∠A = 40°. ∠B is a complement of ∠A and ∠C is a supplement of ∠B. We are to find m∠B + m∠C.

Since ∠B is a complement of ∠A, so we have

$m\angle A+m\angle B=90^\circ\\\\\Rightarrow m\angle B=90^\circ-m\angle A=90^\circ-40^\circ\\\\\Rightarrow m\angle B=50^\circ.$

Now, since ∠C is a supplement of ∠B, so we have

$m\angle B+m\angle C=180^\circ\\\\\Rightarrow m\angle C=180^\circ-m\angle B=180^\circ-50^\circ\\\\\Rightarrow m\angle C=130^\circ.$

Therefore,

$m\angle B+m\angle C=50^\circ+130^\circ=180^\circ.$

Thus, (C) is the correct answer.

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