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3 years ago

The graph of which function does not have a y-intercept of (0, 1)?

Mathematics

1 answer:

Komok [63]3 years ago

3 0

Answer:

For example, the function $y=x^{2}$ does not have a y-intercept of (0, 1). To prove this, let's make x=0, and if the value of 'y' is different from 1, then, the graph does nt have a y-intercept of (0,1):

$y=x^{2}$ ⇒ $y=(0)^{2}$ ⇒ $y=0$

Therefore, the y-intercept is at (0, 0) not (0, 1).

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Lewis rolls a number cube and then chooses a card from a set of cards numbered 1 through 5. What is the probability that he will

IceJOKER [234]

Answer:

$\frac{1}{5}=0.2$

Step-by-step explanation:

The general formula for a probability is:

$P=\frac{FavorableEvent}{TotalEvents}$

The favorable events for the cube to fall in a even number are:

2, 4, and 6 ⇒ 3 favorable events

and in the cube the total events are:

1, 2, 3, 4, 5, 6 ⇒ 6 total events

So the probability of rolling an even number in the cube is:

$P=\frac{3}{6}\\\\\\ P=\frac{1}{2}$

Now we do something similar to find the probability to choose a card with an even number.

The favorable events for an even numbered card are:

2, 4 ⇒ 2 favorable events

and the total number of events in the cards is:

1, 2, 3, 4, 5 ⇒ 5 total events

Thus, the probability to choose an even numbered card (according to the probability formula) is:

$P=\frac{2}{5}$

And finally, since we want both things to happen we must multiply both obtained probabilities:

the probability that he will roll an even number and choose an even numbered card:

$P=\frac{1}{2}*\frac{2}{5} \\ \\P=\frac{2}{10} \\\\P=\frac{1}{5} =0.2$

The probability is 1/5 which is equal to 0.2 or 20%

3 0

3 years ago

A company earns a profit of $100 the first month it is in business. Every month after that, the company earns a profit that is 1

Inga [223]

11/2 of $100 is $550
($550 x 4) + $100 = $2,300
hope this helps

3 0

4 years ago

A load of bricks is twice as heavy as a load of sticks. The total weight of 4 loads of bricks and 4 loads of sticks is 771 kilog

erik [133]

It's 501.15 kg

Hope this helped!

7 0

4 years ago

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Which statements describe a residual plot for a line of best fit that is a good model for a scatterplot? Check all that apply.

sergeinik [125]

Answer:there are about the same number of points above the x axis as below it

The points are randomly scattered with no clear pattern, i know that those two are correct but I’m not to sure on the others but i hope this helps!

Step-by-step explanation:

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3 years ago

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A company claims its washing machine produces 4000 joules of work output for every 3000 joules of work input. What would make yo

ycow [4]

Things that make me skeptical: No evidence is provided, the company also claims that its washing machine produces 4000 joules of output for ever 3000 joules of input, and there is no possible way of creating a joule output larger than the input, unless your using coils to increase electricity, but that's not what washing machines have inside of their machinery. Washing machines don't have mini Tesla coils inside their machinery!

I hope this helps!

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4 years ago