2 years ago

Combine like terms to create an equivalent expression. 0.25k+1.5-k-3.50.25k+1.5−k−3.5

Mathematics

2 answers:

masha68 [24]2 years ago

5 0

Answer:

−0.75k−2 is the simplified form

Step-by-step explanation:

maxonik [38]2 years ago

3 0

Answer:

-2.625k - 0.5

Step-by-step explanation:

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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

Find a consecutive odd numbers where the sum of the first three numbers is 15 greater then the final two numbers.

xenn [34]

Answer:

15, 17, 19

Step-by-step explanation:

x + x+2 + x+4 = 15 + (x+2 + x+4)

3x + 6 = 15 + 2x + 21

x = 15

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x+4 = 19

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2 years ago

I need help with this asap!

scoundrel [369]

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elena-s [515]

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3 years ago

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Ezekiel bought a 18 ounce box of chocolate for $6.50. What was the cost per ounce? in a explanation order

vivado [14]

Answer:0.36

Step-by-step explanation:

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3 years ago