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3 years ago

Help me please lol really need this I gave 3 pics if you need to understand it better.

Mathematics

1 answer:

aalyn [17]3 years ago

7 0

Answer:

-Bell-shaped, A bell shaped picture, shown below, usually presents a normal distribution

Step-by-step explanation:

-Hope this helps butter cup :)

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Fine the length of the hypotenuse of a Right triangle with legs pf 20cm and21cm

Arisa [49]

Hypotenuse² = perpendicular² + base²

H² = 20²+21²

H²= 400+441 = 841

H = √841

H = 29 cm

3 0

2 years ago

Find three consecutive even integers whose sum is 396

vfiekz [6]

X+(x+2)+(x+4)=396, x+x+x+6=396, 3x+6=396, 3x=396-6, 3x=390, x=130, x+2=130+2=132, x+4=130+4=134. The three consecutive even integers are 130, 132, 134

8 0

2 years ago

The average birth weight of elephants is 200 pounds. Assume that the distribution of birth weights is Normal with a standard dev

zhenek [66]

The birth weight of elephants at the 85th percentile is 262.16 pounds

<h3>What is the standard deviation?</h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that:-

The average birth weight of elephants is 200 pounds $\mu$ = 200

The deviation of 60 pounds. $\sigma$ = 60

The birth weight of elephants at the 85th percentile. z = 85%= 1.036

Now from the formula of z-score:-

$z=\dfrac{x-\mu}{\sigma}\\\\\\z=\dfrac{x-200}{60}\\\\\\1.036\times 60=x-200\\\\\\x=\ \ 262.16\ pounds$

Hence the birth weight of elephants at the 85th percentile is 262.16 pounds

To know more about standard deviation follow

brainly.com/question/475676

#SPJ1

5 0

2 years ago

Subtract. Then, in two or more complete sentences, explained how you found the difference. In your explanation, make sure to inc

Nataliya [291]

7/12 - 1 5/12 = 7-5 = 2
= 1 2/12 ( the whole came from 1 5/12 )

5 0

2 years ago

Read 2 more answers

4t+14=6t/5+7 what is the answer

Oliga [24]

4t+ 14= 6t/5+ 7
⇒ 4t+ 14= 6/5t+ 7
⇒ 4t -6/5t= 7 -14
⇒ (4 -6/5)t= -7 (distributive property)
⇒ 14/5t= -7
⇒ t= -7/ (14/5)
⇒ t= -5/2
⇒ t= -2.5

Final answer: t= -2.5~

7 0

3 years ago