3 years ago

HElP IN NEED THIS NOW

Mathematics

1 answer:

ioda3 years ago

5 0

Answer:

Step-by-step explanation:

if he dove down that means he was going deeper into the water.

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Given the following winning percentages of the teams in a league (for a single year) compute the within-season standard deviatio

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Answer:

(b) 0.251

Step-by-step explanation:

1. Standard deviation equation:

$SD=\sqrt{\frac{\sum\limits^N_i {(x_{i}-X)^{2} } }{N} }$

Where X is the mean of the data, and N the amount of data. Then, N=5

2. Estimate the Mean:

$X=\frac{0.750+0.750+0.200+0.600+0.200}{5}=\frac{2.5}{5}=0.5\\$

3. Caclulate Standard deviation:

$SD=\sqrt{\frac{{(0.750-0.500)^{2}+(0.750-0.500)^{2}+(0.200-0.500)^{2}+(0.600-0.500)^{2}+(0.200-0.500)^{2} } }{5} }$

$SD=\sqrt{\frac{0.315}{5} }=\sqrt{0.063}\\SD=0.251$

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2 years ago

Evaluate a +6 for a = 10. NEXT QUESTION © ASK FOR HELP

eduard

Answer:

Step-by-step explanation:

10+6=16

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3 years ago

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9966 [12]

Answer:x=7/5

Step-by-step explanation:

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2 years ago

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HELP? 7-15 please :) show work thank you!

Alexus [3.1K]

Answer:

7. x = 3

Step-by-step explanation:

To find the value of x, use the triangle sum property. Every triangle has interior angles which add to 180 degrees. To solve, add the expressions and numbers together then set equal to 180. Then use inverse operations to solve for x.

7. 20x - 9 + 10x + 9 + 90 = 180 Subtract 90 from both sides.

20x - 9 + 10x + 9 = 90 Add -9 + 9 = 0

20x + 10x = 90 Add like terms 20x + 10x = 30x

30x = 90 Divide both sides by 30.

x = 3

Repeat this process for each problem.

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2 years ago

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why why why humm why why why why

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2 years ago

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