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Tpy6a [65]
2 years ago
5

The power 9^2 is equivalent to 81. What is the value of 9^-2?

Mathematics
2 answers:
goldfiish [28.3K]2 years ago
8 0
Since it’s a negative exponent you have to use the reciprocal, so this would be 1/9^2. remember you have to apply the exponent to both the 1 and 9. since 1^2 is equal to one still the answer would just be 1/81, or 0.012345679
lidiya [134]2 years ago
5 0

Answer:

0.01234567901

Step-by-step explanation:

pls make me brainliest

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The maximum amount you can spend for renting a motor scooter is $50. The rental fee is $12 and the cost per hour is $9.50. Solve
uranmaximum [27]

The maximum number of hours for which you can rent the scooter is: 4 hours

<h3>Cost of renting;</h3>

According to the question;

  • The maximum amount you can spend for renting a motor scooter is $50
  • The rental fee is $12 and the cost per hour is $9.50.

The inequality to determine the maximum number of hours you can rent the scooter is;

  • $12 + $9.50h <= $50

Solving the inequality, we have;

  • $9.50h <= $38

h <= 4hours.

Read more on cost of renting;

brainly.com/question/10563785

5 0
2 years ago
Find the sample variance for the data 9,12,9,14,6. Round the answer to one decimal place. Sample variance
Feliz [49]

Answer:

9.5

Step-by-step explanation:

Find the sample variance for the data 9,12,9,14,6. Round the answer to one decimal place. Sample variance.

Step 1

We find the Mean of the numbers

Mean = Sum of terms/ Number of terms

Mean = 9+12+9+14+6/5

= 50/5

= 10

Step 2

We find the sample variance

Formula =

(x - Mean)²/n - 1

n = 5

= (9 - 10)²+(12 -10)²+(9- 10)²+(14-10)²+(6-10)²/5 - 1

= 1+ 4+ 1+ 16+16/5 - 1

= 38/5 - 1

= 38/4

= 9.5

Therefore, Sample variance = 9.5

3 0
3 years ago
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kiruha [24]

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Step-by-step explanation: Hope this helps! :)

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Step-by-step explanation:

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