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CaHeK987 [17]
3 years ago
12

Find the standard deviation for the following data (20, 30, 38, 40)

Mathematics
1 answer:
Pepsi [2]3 years ago
5 0
C) 7. 133 I believe.....
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What's the answer? Can't figure it out
soldier1979 [14.2K]
9x⁹ - 90x⁸ - 351x⁷

What do each of these numbers have in common?

They ALL have 9x⁷ in them!

So, divide each one of these by 9x⁷

9x⁹ ÷ 9x⁷ = 9x²

-90x⁸ ÷ 9x⁷ = -9x

-351x⁷ ÷ 9x⁷ = -39

So, factorized completely, it is :

9x² - 9x - 39

~Hope I helped!~


4 0
3 years ago
NEED HELP ASAP! WILL MARK BRAINLIEST!
kenny6666 [7]

Answer:

y=2x-20

Step-by-step explanation:

For perpendicular lines, find the opposite reciprocal of the original slope.  The opposite reciprocal of the slope of this line (-1/2) is positive 2

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3 years ago
The local ice cream shop offers 3 different types of cones and 14 different flavors of ice cream. How many possible ice cream co
Likurg_2 [28]
3*14 

42 possible combinations. <span />
6 0
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Delvig [45]

Answer:

22

Step-by-step explanation:

a = 14

b = 8

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2 years ago
Use the relationships between the angles to solve for x <br><br> x = _____ degrees
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