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Lera25 [3.4K]
3 years ago
5

What's 221 rounded to the nearest 10

Mathematics
1 answer:
ycow [4]3 years ago
4 0
It would be 220 rounded to the nearest ten because the number in the ones place does not equal or exceed 5. 

So 220 is your answer :)
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Can anyone help me figure out the 2 square 3 is? and show step by step. Thank you
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like 3 squared? or 2 cubed?

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3 years ago
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Cathy rolls a number cube that is labeled from 1 to 6.
MatroZZZ [7]

Answer: 2/3

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she rolls an even number or a multiple of 3

Outcomes of an even number = {2,4,6}

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so favorable outcomes of even number or a multiple of 3 = {2,3,4,6}

Probability ( any event) =number of favorable outcomes divide by total  number of outcomes

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A toy manufacturer wants to know how many new toys children buy each year. A sample of 1492 children was taken to study their pu
julia-pushkina [17]

By assuming the standard deviation of population 2.2 the confidence interval is 8.67 toys,8.94 toys.

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First we have to find the value of α which can be calculated as  under:

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where x is mean and d is standard deviation.

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The upper value will be x+M

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Hence the confidence interval will be 8.67 toys and 8.94 toys.

Learn more about z test at brainly.com/question/14453510

#SPJ4

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2 years ago
What is the equation of the line that passes through (2, 7) and is perpendicular to y= -5
timofeeve [1]

Answer:

x = 2

Step-by-step explanation:

y = - 5 is a horizontal line parallel to the x- axis.

A line perpendicular to it will be a vertical line parallel to the y- axis with equation

x = c

Where c is the value of the x- coordinates the line passes through.

The line passes through (2, 7) with an x- coordinate of 2, thus

x = 2 ← is the equation of the perpendicular line

5 0
3 years ago
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