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3 years ago

What is the mean height 81,88,69,65,87

Mathematics

1 answer:

Sauron [17]3 years ago

4 0

Answer:

Step-by-step explanation:

add them all together and and divide by how many they are -thats the meaning of the mean

81+88+69+65+87=390

390divide by 5=78

i divided by 5 becasue there are 5 numbers

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In Exercises 15 and 16, tell whether the triangle with the given side

Nata [24]

15. 10 cm, 10 cm, V200 cm : Right Angled Triangle

16. 9 in., 16 in., 25 in. : Not a right angled triangle

Step-by-step explanation:

In order to check whether the given sides form a right angled triangle, we check if the sum of squares of two shorter sides is equal to the square of third longest side.

15. 10 cm, 10 cm, V200 cm

$The\ shorter\ sides\ are\ 10cm\ and\ 10cm\\Let \\a=10\\b=10\\c=\sqrt{200}So,\\c^2=a^2+b^2\\(\sqrt{200})^2=(10)^2+(10)^2\\200 = 100+100\\200 = 200$

The triangle is a right angled triangle.

16. 9 in., 16 in., 25 in.

Here

a = 9 in

b=16 in

c=25 in

So,

$c^2=a^2+b^2\\(25)^2=(9)^2+(16)^2\\625=81+256\\625=337$

The given triangle is not a right angled triangle.

Keywords: Triangle, Right angled Triangle

Learn more about triangle at:

#LearnwithBrainly

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3 years ago

Graph the function: y=(x-1)^2+3. how is the graph a translation of f(x)=x^2?

defon

The answers D: Translated up 3 unit(s) and translated to the right 1 unit(s)

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3 years ago

A mouse population is 25,000. It is decreasing in size at a rate of 30% per

KengaRu [80]

Answer:

y= 12,800 mice

Step-by-step explanation:

y= 25,000 (1-.2)t

y= 25.000 (.8)3

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3 years ago

The product of a number and -3 is less than 27

Vaselesa [24]

Answer:

-8

Step-by-step explanation:

-8×-3 =24 thats yeaaaa

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