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pshichka [43]
3 years ago
15

What is/are the exact solutions for the equation 2cos^2x+3cosx+1=0 on the intercal (0,2pi)

Mathematics
1 answer:
Dafna1 [17]3 years ago
5 0

Answer:

x = \frac{2\pi }{3}  and \frac{4\pi }{3}

Step-by-step explanation:

I graphed the equation below.

If these answers are correct, please make me Brainliest!

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Write a two step equation that has -5 as it solution.
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Answer:

x^2 + 10x + 25 = 0

Step-by-step explanation:

x^2 + 10x + 25 = 0

(x + 5)^2 = 0

x = -5

8 0
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Solve the inequality<br>w/2&lt;-42​
exis [7]

Answer:

w<-84

Step-by-step explanation:

solved the equation

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The local fish market sells both salmon and tuna for $5.35 per pound. If you buy 3.4 pounds of tuna and 2.7 pounds of salmon, wh
boyakko [2]
3.4 + 2.7 = 6.1
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3 0
3 years ago
How do you solve thsi
VLD [36.1K]
You multiply the length of the model car by the meters from the actual car. It’s easier to convert one unit of measurement to match with the other. I found it easier to convert 18.2 cm to meters which is 0.182 m. Now we multiply 0.182m by 0.3m to get the length of the actual car.

The answer would be 0.0546m. Or if you prefer centimeters, then the answer would be 5.46 cm. Either way is fine.

Hope this helped, please let me know if I was correct. :D
5 0
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Alinara [238K]

Answer:

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3 0
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