3 years ago

Frist one get big brain and 10 points

Mathematics

1 answer:

Tanya [424]3 years ago

7 0

Well here is the thing is the answer is 10

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Art [367]

Answer:

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Step-by-step explanation:

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3 years ago

The product of two consecutive integers is 90. Which equation can be used to find the two integers?

joja [24]

Two consecutive integers would be x and x+ 1
if you multiply them you have x(x + 1) = x^2 + x
if you want the product to equal 90 you get x^2 + x = 90
The first option is correct.

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4 years ago

How many miles did a plane travel if it flew 455 miles per hour in 3 hours and what formula did you have to use

Kitty [74]

Answer:

It flew 1,365 miles

Step-by-step explanation:

Just multiply the speed in mph by the time in hours so 455 * 3

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3 years ago

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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3 years ago

Flying against the wind, a jet travels 5760 miles in nine hours flying with the wind, the same jet travels 5000 miles in five ho

aalyn [17]

Answer:

Step-by-step explanation:

9h+5h(5h-5760)-2+12=y

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3 years ago