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sp2606 [1]
3 years ago
9

Which type of graph would best show the population of New York City over 70 years

Mathematics
1 answer:
bixtya [17]3 years ago
6 0

Answer:

line graph

Step-by-step explanation:

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Round 649,418 to the nearest ten,_____,nearest hundred_____,nearest thousand_____,nearest ten thousand_____,nearest hundred thou
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649,420
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What is the volume of Box 3? 4x3 + 2x2 + 4x + 1 x4 + 4x3 + x2 + 4x x4 + 4x3 + 2x2 + 4x x4 + 2x3 + x2 + 4
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Answer:

Step-by-step explanation:

B. x4 + 4x3 + x2 + 4x

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Let U={1,2,3,4,5,6,7,8}A={2,3,6}B={2,4,5,7}C={1,7,8}Find the following use the roster method to write method to write the set. E
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1 year ago
The Scottsdale fire department aims to respond to fire calls in 4 minutes or less, on average. Response times are normally distr
IgorC [24]
<h2><u>Answer with explanation</u>:</h2>

Let \mu be the population mean.

As per given , we have

H_0:\mu \leq4\\\\ H_a: \mu >4

Since the alternative hypothesis is right-tailed , so the test is a right-tailed test.

Also, population standard deviation is given \sigma=1 , so we perform one-tailed z-test.

Test statistic : z=\dfrac{\overline{x}-\mu}{\dfrac{\sigma}{\sqrt{n}}}

, where \mu = Population mean

\sigma = Population standard deviation

n= sample size

\overline{x} = Sample mean

For n= 18 , \overline{x}=4.50 , \sigma=1 , \mu =4, we have

z=\dfrac{4.5-4}{\dfrac{1}{\sqrt{18}}}\approx2.12

P-value (for right tailed test): P(z>2.12) = 1-P(z≤ 2.12)  [∵ P(Z>z)=1-P(Z≤z)]\

=1- 0.0340=0.9660

Decision : Since P-value(0.9660) > Significance level (0.01), it means we are failed to reject the null hypothesis.

[We reject null hypothesis if p-value is larger than the significance level . ]

Conclusion : We do not have sufficient evidence to show that the goal is not being met at α = .01 .

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3 years ago
Paulo has $145 in his savings account. He earns $36 a week in mowing laws. <br> Write an equation.
bazaltina [42]
36w+145 is the equation

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