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kow [346]
4 years ago
11

Help fast! no guessing!explain how u got the answer! make sure its 100% right! thx in advanced

Mathematics
1 answer:
mixas84 [53]4 years ago
6 0
A)  75, 77, 78, 81, 83, 86, 92, 94, 98, 106

Explanation : Basically, you just take the number on the right, and add it to the number to the left.

b)  Remember, to find the mean, you must add everything up, and then divide it by how many numbers you added together.

So :

75 + 77 + 78 + 81 + 83 + 86 + 92 + 94 + 98 + 106 = 870

Then, divide 870 by 10, because we added 10 numbers together.

870 ÷ 10 = 87

So, our mean is 87

c)  Remember, to find the MAD, we must subtract the mean from each data point.

So :

75 - 87 = -12

77 - 87 = -10

78 - 87 = -9

81 - 87 = -6

83 - 87 = -4

86 - 87 = -1

92 - 87 = 5

94 - 87 = 7

98 - 87 = 11

106 - 87 = 19

Then, add all of those values up, and find the mean of that.

*Remember, when finding the MAD, everything is a positive.

12 + 10 + 9 + 6 + 4 + 1 + 5 + 7 + 11 + 19 = 84

Divide 84 by 10.

84 ÷ 10 = 8.4

So, our MAD is 8.4

~Hope I helped!~
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ohaa [14]
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No real solutions, because for all real numbers the square of number is greater or equal 0.


7 0
3 years ago
I need help with this math question
givi [52]

Answer:

a.) y = 3/(2ˣ)

b.) y = 1/(2ˣ)

c.) y = (π^π)ˣ

d.) y = (1/27)(1/√(3))ˣ

e.) y = .002908/(.119025ˣ)

f.) y = .00000004808/(.0413ˣ)

Step-by-step explanation:

Concept need to know is:

  • a negative exponent will flip the numerator with the denominator
  • a fraction as an exponent is just a root. so if the exponent is x^(1/2) then the root is 2 and x^(1/3) is a cube root
  • adding and subtracting exponent is the same thing as multiplying the same base.
  • so x^(1+2) = (x^1)(x^2)
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7 0
3 years ago
Betsy's high school is putting on a production of a play as a fundraiser for the school's music programs. A local bank has agree
AysviL [449]

Answer:

Hey there!

If 1007 people attend, they will make a profit of 10070 dollars.

The play costed 3200 dollars to produce, so we have -3200+10070=7500 dollars as the final balance of the bank account.

Let me know if this helps :)

8 0
3 years ago
How many solutions exist for the given equation? <br><br> 3(x-2) =22 -x
kenny6666 [7]

Answer:

one solution

Step-by-step explanation:

3(x-2) =22 -x

Distribute

3x - 6 = 22-x

Add x to each side

3x+x-6 = 22-x+x

4x+6 = 22

Subtract 6 from each side

4x+6-6 = 22-6

4x= 16

Divide by 4

4x/4 = 16/4

x=4

There is one solution

6 0
2 years ago
What is the slope of the line that passes through the points (8,8) and (20, -2)?
Sindrei [870]

Answer:

-5/6

Step-by-step explanation:

Use slope intercept form: \frac{y_2-y_1}{x_2-x_1}

\frac{-2-8}{20-8} = \frac{-10}{12} = -5/6

3 0
3 years ago
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