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3 years ago

How do i find the length of a square when the perimeter is 54cm

Mathematics

1 answer:

kozerog [31]3 years ago

8 0

Answer:

Divide the perimeter by four.

Step-by-step explanation:

Because it is a square, all four sides should be the same length. If all sides have to be equal, you divide your perimeter by the amount of sides the shape has.

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Need to know these two problems

Arturiano [62]

Multiple 16 by 1 and then divide by 8 which makes 2.

Multiply 36 by 1 and then divide by 9 which makes 4.

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3 years ago

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Put the numbers in order from least to greatest. - 29 , -5.39, - 27 5 , -5 7 20 A) - 27 5 , -5.39, - 29 , -5 7 20 B) - 29 , -5.3

lara [203]

Answer:

the answer is c starting with -5720

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3 years ago

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A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.

Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean $(\mu)$ = 500 and a standard deviation $(\sigma)$ = 100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = $\dfrac{Y-\mu}{\sigma}$

Z-score = $\dfrac{625-500}{100}$

⇒ Z-score = $\dfrac{125}{100}$

⇒Z-score =1.25

Therefore , the required z-score = 1.25

6 0

3 years ago

I need help wit one & two please help

seropon [69]

23 is less than 25 which means it's closer to 20, so you would round it down to 20. 1.75 is over 0.50, 1/2, so you would round it up to 2. If you multiply 2 and 20 you would get 40.

Number two gets the same explanation just with different numbers.

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3 years ago

Hannah has $400 to spend on vacation. She is going to be gone for 3 days. What is the most she

eimsori [14]

Answer:

I'll spend about maybe $80

Step-by-step explanation:

So I can have fun also this is a joke not real answer >:D

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3 years ago