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geniusboy [140]
3 years ago
8

Solve equation by using the quadratic formula.

Mathematics
1 answer:
adoni [48]3 years ago
3 0
ANSWER IS C because I looked it up
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I need answer correct ASAP Please!!!
Brums [2.3K]

Answer:

cos(m∠B) = 2√5/5

Step-by-step explanation:

Easiest way is to guess and check on this problem. When you take the cos(m∠B), you would get 6/3√5, rationalized to 2√5/5. That would be the correct answer.

7 0
3 years ago
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Given mn, find the value of x.
Ksivusya [100]

Answer:

x = 19

Step-by-step explanation:

The two angles with measures are supplementary.

6x + 9 + 4x - 19 = 180

10x - 10 = 180

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5 0
2 years ago
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What is the result if 3x-9 is evaluated when x = -5?​
Anton [14]

Answer:

Step-by-step explanation:

I wonder if it is the minus that is causing the problem?

Let x = - 5

3*(-5) - 9

-15 - 9

This is a money question. If you are 15 dollars in debt and you spend another 9, where are you? (In the company of the American government. They do this all the time).

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5 0
3 years ago
Turn the sentence into an expression please
PilotLPTM [1.2K]

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6 * (n^2 + 4)

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2 years ago
Anyone know whats 9 + 10 ??
Zarrin [17]

Answer: 21

Step-by-step explanation:

ahaha but for real it is 19

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