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3 years ago

PLEASE HELP!!!!!!!!!!!!

1 answer:

8 0

A set of ordered pairs does NOT represent a function when an input(x value) has multiple outputs(y value). The input can only have one output.

For the first one the answer is B because when x is 2, it has multiple y values. (2, 2) and (2,7)

For the second one the answer is B because A, C, and D have inputs(x values) that have multiple outputs(y values)

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I need help with this !

Alekssandra [29.7K]

Answer:

the answer is 47/30, which is approximately 1.56666667

8 0

4 years ago

Read 2 more answers

What is the solution of the system? use elimination . -12x-y=6 17x+y=4

anyanavicka [17]

To clarify the systems of equations:

$-12x - y = 6$
$17x + y = 4$

We already have opposite coefficients for y, so combine the two equations together:

$5x = 10$

Divide both sides by 5 to get x by itself:

$x = 2$

Because we now know x, we can plug it into one of the equations.

We will plug this value into the first equation:

$-12(2) - y = 6$

$-24 - y = 6$

Add 24 to both sides.

$-y = 30$

Divide both sides by -1 to get y by itself.

$y = -30$

Using elimination, x = 2 and y = -30.

5 0

3 years ago

General Logs Banana Bombs cereal is sold in 10.40 ounce packages. Because the cereal is sold by weight, the number of pieces of

emmasim [6.3K]

Answer:

The 99% confidence interval for the true mean number of Banana Bombs in 10.40 ounce packages is between 689.3 and 703.86.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.99}{2} = 0.005$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.005 = 0.995$ , so Z = 2.575.

Now, find the margin of error M as such

$M = z\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 2.575\frac{12.33}{\sqrt{19}} = 7.28$

The lower end of the interval is the sample mean subtracted by M. So it is 696.58 - 7.28 = 689.3 pieces

The upper end of the interval is the sample mean added to M. So it is 696.58 + 7.28 = 703.86 pieces

The 99% confidence interval for the true mean number of Banana Bombs in 10.40 ounce packages is between 689.3 and 703.86.

4 0

3 years ago

This morning I went to Larry's for breakfast.

Olin [163]

Answer:

9 dollars and 18 cents

Step-by-step explanation:

6 0

3 years ago

In your own words explain why you need to first find the common denominator when adding/subtracting fractions and you do not nee

Elena-2011 [213]

You need a common denominator while subtracting because really a fraction is a division problem and you cannot do 4/5-8/9 it does not make sense as for multiplication you really just multiplying everything that is why it makes sense.

3 0

4 years ago