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Tatiana [17]
3 years ago
6

Solve. −x2 = 2x − 15

Mathematics
1 answer:
Fynjy0 [20]3 years ago
5 0

Answer: X= 15/4

Step-by-step explanation:

Subtract 2x from both sides

-x 2-2x=2x-15-2x

Simplify

-4x=-15

Divide both sides by -4

4x/-4 = -15/-4

Simplify

X=15/4

~Hope it helps and stay safe! ~

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Step-by-step explanation:

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2 years ago
Leo reads 60 pages in 2 hours. how long will it take home to read 17 pages at th same rate​
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3 years ago
An angle of measure 120 degrees intersects the unit circle at point (-1/2,√3/2) What is the exact value of cos(120)
notka56 [123]

The exact value of cos120 if the measure 120 degrees intersects the unit circle at point (-1/2,√3/2) is 0.5

<h3>Solving trigonometry identity</h3>

If an angle of measure 120 degrees intersects the unit circle at point (-1/2,√3/2), the measure of cos(120) can be expressed as;

Cos120 = cos(90 + 30)

Using the cosine rule of addition

cos(90 + 30) = cos90cos30 - sin90sin30

cos(90 + 30) = 0(√3/2) - 1(0.5)

cos(90 + 30) = 0 - 0.5

cos(90 + 30) = 0.5

Hence the exact value of cos120 if the measure 120 degrees intersects the unit circle at point (-1/2,√3/2) is 0.5

Learn more on unit circle here: brainly.com/question/23989157

#SPJ1

7 0
2 years ago
Please help me with this
goblinko [34]

Answer:

the anwser is 2637 passengers a day

Step-by-step explanation:

5 0
3 years ago
Please help. I'm not the best at math.
Elena L [17]
5:4 Should be correct! I took the test Btw Hope this helps!! :D

5 0
3 years ago
Read 2 more answers
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