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3 years ago

What does x and y mean in coordinates

1 answer:

4 0

Answer: x stands for the distance right or left of the Origin (0, 0), and Y is the distance up or down from the Origin

Step-by-step explanation:

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Kristin goes to the mall and buys a pair of brand name sunglasses on sale for 13 off the regular price of $240.00. How much will

SIZIF [17.4K]

$13 (?) off the original price of 240 is 229. She will have to pay $229.00

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3 years ago

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5 3/12 - 1 4/9 what is the answer

Vlad1618 [11]

The answer is 3 29/36

5 3/12 = 5 9/36

1 4/9 = 1 16/36

So the answer equation is 5 9/36 - 1 16/36

down: 4 45/36 - 1 16/36 = 3 29/36

I HOPE THIS HELPS

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3 years ago

Brody makes $38,000 per year no matter how many hours he works. Shonda makes $18 per hour and works 40 hours per week. Which one

Ann [662]

Answer:

64.00 it is 64.00

Step-by-step explanation:

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2 years ago

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The chart shows the low temperature each day in International Falls, Minnesota, during the month of February 2009. What was the

Nesterboy [21]

I think you have to list all of the temperatures in order from least to greatest during the first week (-31, -29, -9, -8, 3, 4, 6) in which case the median would be -8.

I hope this helps you and if you know the answer is wrong please let me know in the comments and I will take another look at the question to see if I can figure out the correct answer.

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3 years ago

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What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean

Elena-2011 [213]

Answer:

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

Step-by-step explanation:

The following information is missing:

The standard deviation of population is 100.

We are given the following information in the question:

Population mean, μ = 502

Standard Deviation, σ = 100

Sample size, n = 90

Standard error =

$\dfrac{\sigma}{\sqrt{n}} = \dfrac{100}{\sqrt{90}} = 10.54$

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(test score within 10 points)

$P(492 \leq x \leq 512) \\\\= P(\displaystyle\frac{492 - 502}{10.54} \leq z \leq \displaystyle\frac{512-502}{10.54}) \\\\= P(-0.9487 \leq z \leq 0.9487)\\= P(z \leq 0.9487) - P(z < -0.9487)\\= 0.829 -0.171 = 0.658 = 65.8\%$

$P(492 \leq x \leq 512) = 65.8\%$

0.658 is the probability that a sample 90 test takers will provide a sample mean test score within 10 points of the population mean of 502.

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3 years ago