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olga55 [171]
2 years ago
7

Use any method to solve the equation. If necessary, round to the nearest hundredth. 9x^2-21=0

Mathematics
1 answer:
zavuch27 [327]2 years ago
7 0

Answer:

x = 1.53, -1.53.

Step-by-step explanation:

9x^2 - 21 = 0

9x^2 = 21

x^2 = 21/9

x =  +/- √21 / 3

x = 1.53, -1.53.

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Answer: So if you want to find the total cost (c) for a certain number of months (m) and it costs $35 per month, you just need to multiply the number of months by the cost per month. So

35m=c

If you want to see the units cancel

($35/month)(months)=$

The months will cancel out, and you will be left with total dollars.

Not sure about the second part of your question, but if you wanted to figure out how much it would cost to be a member for 6 months, you would just plug in 6 for m.

35(6)=c

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Step-by-step explanation:

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3 years ago
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Vsevolod [243]

Answer:

3/10

Step-by-step explanation:

The fraction, 1/12, can be written as 1/4 * 1/3. Since we know that 1/3 = 0.333333... and it doesn't terminate, we know that 1/12 doesn't terminate. Similarly 2/9 = 2/3*1/3 and 2/3 = 2*1/3, and neither of these fractions terminate. But, when dividing 3/10, you get 0.3, which terminates.

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2 years ago
3) What is 3x +15y=-16 in slope intercept form?
stellarik [79]

Answer:

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8 0
3 years ago
The rectangle shown has a perimeter of 154 cm and the given area. Its length is 5 more than five times its width. Write and solv
Andreyy89

Answer:

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3 years ago
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masya89 [10]

Answer:

1

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2 years ago
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