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ludmilkaskok [199]
2 years ago
5

I need help whats 100 plus 20

Mathematics
2 answers:
grigory [225]2 years ago
6 0

Answer: 120

Step-by-step explanation:

REY [17]2 years ago
6 0

100 + 20 = 120. that's it

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Use the distributive property to remove the parentheses.<br> -4(-6y + 2w-4)
olga_2 [115]

Answer: 24y - 8w + 16

Step-by-step explanation:

Basically to remove the parenthesis you just distribute the -4 outside of the parenthesi and you get 24y - 8w + 16.

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2 years ago
What is the length of the right triangle below in inches?​
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Answer:

6in

Step-by-step explanation:

Using the pythagerous thereom,

10^2 = 8^2 + b^2

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b^2 = 100-64

b^2 = 36

b = 6

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8 0
2 years ago
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Is 9.78083 a rational number
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3 years ago
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A sample of blood pressure measurements is taken for a group of​ adults, and those values​ (mm Hg) are listed below. The values
Slav-nsk [51]

Answer:

Systolic on right

\hat{CV} =\frac{18.68}{127.5}=0.147

Systolic on left

\hat{CV} =\frac{12.65}{74.2}=0.170

So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

Step-by-step explanation:

Assuming the following data:

Systolic (#'s on right) Diastolic (#'s on left)

117; 80

126; 77

158; 76

96; 51

157; 90

122; 89

116; 60

134; 64

127; 72

122; 83

The coefficient of variation is defined as " a statistical measure of the dispersion of data points in a data series around the mean" and is defined as:

CV= \frac{\sigma}{\mu}

And the best estimator is \hat {CV} =\frac{s}{\bar x}

Systolic on right

We can calculate the mean and deviation with the following formulas:

[te]\bar x = \frac{\sum_{i=1}^n X_i}{n}[/tex]

s= \frac{\sum_{i=1}^n (x_i -\bar X)^2}{n-1}

For this case we have the following values:

\bar x = 127.5, s= 18.68

So then the coeffcient of variation is given by:

\hat{CV} =\frac{18.68}{127.5}=0.147

Systolic on left

For this case we have the following values:

\bar x = 74.2 s= 12.65

So then the coeffcient of variation is given by:

\hat{CV} =\frac{12.65}{74.2}=0.170

So for this case we have more variation for the data of systolic on left compared to the data systolic on right but the difference is not big since 0.170-0.147 = 0.023.

4 0
3 years ago
Help me pleaseeee ???
Leokris [45]
There's only one solution...the one you get when you divide both sides by 22 to solve for x.  902/22 = 41.  That exponent on the x, the one you don't see, is a "1" which tells us that there is only 1 solution to this problem.  If your x is squared, then you have 2 solutions; if it's cubed, you have 3, etc.
7 0
3 years ago
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