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babymother [125]
3 years ago
5

What is the value of b in the equation below? 9^-8 • 9^-2=a^b

Mathematics
1 answer:
HACTEHA [7]3 years ago
4 0
9^-8 • 9^-2 = a^b
9^-10 = a^b

a = 9
b = -10

You get this results from comparing terms
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What is the mean,median,mode,range of 0,0,1,3,3,4,5,5,7,7,7,7,7,10,18,50?
vodomira [7]
To find the median, we will list our numbers from least to greatest, and then cross out the smallest number and the biggest number.
0,0,1,3,3,4,5,5,7,7,7,7,7,10,18,50.
0,1,3,3,4,5,5,7,7,7,7,7,10,18.
1,3,3,4,5,5,7,7,7,7,7,10.
3,3,4,5,5,7,7,7,7,7.
3,4,5,5,7,7,7,7.
4,5,5,7,7,7.
5,5,7,7.
5,7.
Since we cannot find a middle number, add the last two numbers up and divide by 2.
5+7 = 12. 12/2=6.
Our median is 6.
The mean is the sum of all numbers divided by how many numbers we have.
0+0+1+3+3+4+5+5+7+7+7+7+7+10+18+50= 132.
We have 16 numbers total.
132/16 = 8.25.
Our mean is 8.25.
The mode is the number that appears the most within the given list.
7 appears the most.
Your mode is 7.
The range is the difference between the largest number and the smallest number.
Our largest number is 50 and our smallest number is 0. The difference of two numbers means to subtract. Subtract 0 from 50.
50-0 = 50.
Your range is 50.
I hope this helps!
3 0
3 years ago
Find the product. Simplify. 1/10 x 3/4
FrozenT [24]

Answer:

Alright just simplify the expression So the exact form is

Exact form: 3/40 Hope this helps :)

Step-by-step explanation:


6 0
4 years ago
Read 2 more answers
If the regular recipe that makes 14 pancakes calls for 1 cup of milk, how many cups should I use to make 21 pancakes? Group of a
Kisachek [45]

Answer:

x = 1 1/2 cups

1.5 cups

Step-by-step explanation:

We can use ratios to solve

14 pancakes        21 pancakes

------------------ = ------------

1 cup                  x cups

Using cross products

14x = 21*1

Divide each side by 14

14x/14 = 21/14

x = 3/2

x = 1 1/2 cups

7 0
3 years ago
Substitution method<br><br> 3x - 4y = 18<br> 2x + y = 1
insens350 [35]
There are 3 pictures of the steps.

x = 2

y = -3

7 0
3 years ago
Brian needs $315 to buy a new cell phone. He has already saved $115 and plans to save an additional
Juliette [100K]

Answer:

34 weeks

Step-by-step explanation:

Hello!

We can set up an equation to solve for the number of weeks.

Let w = the number of weeks he is saving up.

The equation is 315 = 115 + 10w - 140

  • 315 is the target amount
  • 115 is the current amount
  • 10w is the rate of growth
  • 140 is the current debt

<h3>Solve for w</h3>
  • 315 = 115 + 10w - 140
  • 315 = -25 + 10w
  • 340 = 10w
  • 340/10 = w
  • 34 = w

He needs to save up for 34 weeks.

5 0
2 years ago
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