3 years ago

The table below shows a relationship between the variables x and y. Explain

Mathematics

1 answer:

larisa [96]3 years ago

6 0

There is a rule:

one input(x-value) can only have one output(y-value) in order to be a function.

So if one input has more than one output, it is not a function.

But if an output has more than one input, it is still a function.

This table does not represent a function because the inputs: 0, 1, 2,

have more than one output.

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s344n2d4d5 [400]

In order to prove these triangles congruent by SAS, AB and DE must be congruent. Thus, C is your answer.

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7 0

2 years ago

One month,ruby worked 6 hours more than Isaac, and Svetlana worked 4 times as many hours as ruby. Together they worked 126 hours

Misha Larkins [42]

I + 6 = r

4r = s

i + r + s = 126

4i + 24 = 4r

s= 4r

i = r-6

4i+24=i+6
-3i=18

i = 6

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3 years ago

A box has 1 red marble, 3 blue marbles, and 4 green marbles. Maya draws a blue marble randomly from the box, replaces it, and th

allochka39001 [22]

Answer:

$\dfrac{9}{64}$

Step-by-step explanation:

Sampling with replacement means that we choose a marble, note its colour, put it back and shake the box, then choose a marble again.

There are $1+3+4=8$ marbles in total. The probability that the first chosen marble is blue is $\dfrac{3}{8}.$ then Maya replaces this marble and the probability of choosing the second blue marble is the same. Using the product rule, the probability of drawing 2 blue marbles in a row is