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3 years ago

Which triangle side lenghs form a right triangle

Mathematics

1 answer:

aalyn [17]3 years ago

5 0

Answer:

angle of 90 degrees

Step-by-step explanation:

if the length satisfy the pythagorean theorem (a2+b2=c2) then it is a right traingle

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Officials begin to release water from a full man-made lake at a rate that would empty the lake in 14 weeks, but a river that can

Margarita [4]

Answer: $\frac{140}{3}$ weeks

Step-by-step explanation:

Given

It takes 14 weeks to empty a lake

also it takes 20 weeks for a river to fill the lake

Part of lake empty in 1 week $=\frac{1}{14}$

Part of lake filled in 1 week is $=\frac{1}{20}$

And if both works simultaneously then

$\frac{1}{14}-\frac{1}{20}=\frac{10-7}{140}$

$=\frac{3}{140}$

therefore it takes $\frac{140}{3}$ weeks to fill it

4 0

3 years ago

Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from heights of 130 to 190 cm and we

torisob [31]

The best predicted weight of a person that is 156 cm is 285.4kg

<h3>We have the regression equation as </h3>

y= 106+1.15

When the adult male is 156 cm tall the weight of this person would be calculated as:

y= 106+1.15*156

y = 106 + 179.4

y = 285.4

Hence we can arrive at the conclusion that the best predicted weight of a person that is 156 cm is 285.4kg

Read more on regression equation here:

brainly.com/question/26843436

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1 year ago

Find the slope of the line passing through the points (-4, 8) and (2,8).

melamori03 [73]

Answer:

The slope of the line passing through the points (-4, 8) and (2,8) is 0

Step-by-step explanation:

The slope is 0 because you would subtract the y ones first 8-8, subtract the x ones next 2-(-4). You would get 0/6. When you would divide 0/6, you would get 0

4 0

2 years ago

What is true of the data in the Dot Plot check on that apply number of televisions per household?

Aliun [14]

Answer:

first and last

Step-by-step explanation:

Total observations:

3 + 7 + 7 + 4 + 1 = 22

There are 22 observations, so data from 22 households

Median position: (n + 1)/2

(22 + 1)/2 = 23/2 = 11.5th value

median is the average of 11th and 12th values, both are 2. So the average is also 2

Therefore, Centre is at 2

4 0

3 years ago

Cot0 + tan0 = sec0csc0

Lelechka [254]

Answer:

Step-by-step explanation:

7 0

3 years ago