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2 years ago

A line passes through the points (4,19) and (9,24). Write a linear function in the form y =Mx+b for this line

1 answer:

7 0

Slope = y2-y1 / x2-x1
= 24-19/9-4
= 5/5
= 1

solve for b
y=1x+b
19=1(4)+b
19=4+b
15=b

the equation of the line is y=x+15

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2 years ago

PLEASE WORTH 40 POINTS PLEASEEE HELP I HAVE TO HAVE TO SUMIT IN AN HOUR!!!!!!!!!!!!!!!!

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Answer:

Part A: Histogram :)

Part B: Described below! :)

Step-by-step explanation:

Part A:

A histogram is the best choice because it can show the numbers for multiple categories in a quick and easy manner :)

Part B:

The x axis will have the categories of quiz scores! The y axis will show how many students got that score.

We then put the categories from smallest to largest along the x axis. We will also put the numbers that go with the categories above the category!

Done! you have made your histogram!

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1 year ago

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2. (8 points) If you have n gold coins with one a fake that you know is slightly lighter, how many weighings on the pan balance

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Answer:

Only 1 Time

Step-by-step explanation:

Since you know that one coin is fake and that the coin is lighter than the rest , then you would only need to weigh all the coins together 1 time to ensure that you will find the fake coin. We can determine this by doing the following.

Example:

Lets say we have 100 coins that weigh 1 gr each. Meaning that the total weight of the 100 coins would be (100coins*1gr = 100gr) IF there are no fake coins in the batch.

Knowing this we can weigh the entire batch 1 time and if the total weight is less than 100gr we know that the fake coin is in that batch.

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2 years ago

At a bus stop station, buses deport at a rate of 3 every 10 minutes. At this rate how many buses would depart in one hour.

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A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with milli

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Complete Question:

A manufacturer produces piston rings for an automobile engine. It is known that ring diameter is normally distributed with ? = 0.001 millimeters. A random sample of 15 rings has a mean diameter of \bar{X}= 74.106. Construct a 99% two-sided confidence interval on the true mean piston diameter and a 95% lower confidence bound on the true mean piston diameter.

(Round your answers to 3 decimal places.)

(Calculate the 99% two-sided confidence interval on the true mean piston diameter.

Answer:

99% true sided confidence Interval on the true mean Piston diameter = (74.105, 74.107)

Step-by-step explanation:

Check the attached file for the complete solution

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3 years ago