4 years ago

Why does the graph of a proportional relationship must pass through the origin (0,0)

1 answer:

4 0

Answer:

Directly proportional relationships always pass through the origin (0,0). There are other linear relationships that do not pass through the origin.

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A computer and printer cost a total of $939. The cost of the computer is two times the cost of a printer. Find the cost of each

nika2105 [10]

Answer: P=313 and C=626

Step-by-step explanation:

939=2x+x

939=3x

313=x Printer is 313 and computer is 626

626+313=939

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4 years ago

Andrea rented a canoe for 5 hours. The rental company charged her a $20 fee plus $5 per hour. Which graph best represents the re

Bogdan [553]

Answer:

Step-by-step explanation:

5 times 5 is 25 plus 20 is 45 hope this helps

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3 years ago

A six-sided number cube labeled 1 through 6 is rolled 500 times. An odd number is rolled 325 times. Compare the experimental pro

Komok [63]

The actual probability of having odd is 3/6=1/2
so no of odds theoretically is 250

but it is 325
so, experimental is higher than theoretical
so answer is B !
and you can go for that !

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4 years ago

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The golf club can send a team of four students to the next golf tournament. If there are 15 students in the club, how many diffe

andre [41]

Answer:

I. kinda confused I may be reading it wrong but 3

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3 years ago

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The Ohio Department of Agriculture tested 203 fuel samples across the state in 1999 for accuracy of the reported octane level. F

OlgaM077 [116]

Answer:

The Sample size is 1918.89035

Step-by-step explanation:

Consider the provided information.

It is given that 14 out of 105 samples failed.

Therefore p = 14/105 = 0.13 3... and q=1-0.133=0.867

Samples would be needed to create a 99 percent confidence interval.

Subtract the confidence level from 1, then divide by two.

$\frac{(1 -0.99)}{2}=0.005$

By standard normal table z=2.5758≈2.58

Calculate the sample size as:

$n=\frac{z^2pq}{e^2}$

Where, e is the margin of error,

Substitute the respective values.

$n=\frac{(2.58)^2(0.133)(0.867)}{(0.02)^2}=1918.89$

Hence, the Sample size is 1918.89035

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3 years ago