3 years ago

Exponents how do you do them

Mathematics

2 answers:

konstantin123 [22]3 years ago

7 0

3 to the power of 5

you multiply 3 times 5 instead of 3 times 3 times 3 times 3 times 3
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xxMikexx [17]3 years ago

5 0

Say the equation is 5 to the 2nd power +7 you would multiply the 5x2 which is 10 then + 7 =17

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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

Masja [62]

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

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Veseljchak [2.6K]

Answer:

40 mph first one

Step-by-step explanation:

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2 years ago

Expand & simplify <br> (2x+6)(x−9)

Alex777 [14]

Answer:

2x^2-12x-54

Step-by-step explanation:

First 2x times x along with 2x times -9

Second 6 times x along with 6 times -9

2x^2-18x+6x-54

=2x^2-12x-54

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2 years ago

Determine if the ordered pair (-5, -1) is a<br> solution of 2x - y =-11.

Marrrta [24]

No, when you plug is -5 for x and -1 for why, it ends up being -9 not -11. (-5,-1) is not a solution.

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3 years ago

Read 2 more answers

Help me out 1+1=?

lesantik [10]

Answer:

Is it 2?

Step-by-step explanation:

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3 years ago