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4 years ago

Write a function rule for the table.

Mathematics

2 answers:

3241004551 [841]4 years ago

7 0

Every hour is 15$, thus you can do x for hours, and the function would be 15x

bekas [8.4K]4 years ago

4 0

Alright, so in the table, x is the input, or the hours worked. The pay, or the output, is our y value.

This shows for every 2 hours worked, we get 15 dollars.

Let's write it out

2x=y

y=15

x=1 hour

The x is hours and the y is dollars.

A function rule is written as a ratio.

So we will compare hours to minutes.

Our function is 2:15

Answer: 2:15

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A set of bivariate data was used to create a least-squares regression line. Which of the following is minimized by the line? The

Akimi4 [234]

Answer:

The sum of the squared residuals

Step-by-step explanation:

If you sum the residuals, you would get 0

if you sum of the absolute values of the residuals you wouldn't be doing "least-squares regression"

The influence of outliers D The slope is another metric that has nothing to do in creating the regression line

8 0

4 years ago

Decreasing the sample size from 750 to 375 would multiply the standard deviation by

Sindrei [870]

The standard deviation of a sample is proportional to 1/√N where N is the sample size. In this case we are decreasing N by half, so we can write:

1/√(N/2) = √2 / √N

If we say that our standard deviation is proportional to 1/√N, the difference that occurred from decreasing the sample size by half resulted in an increase in the standard deviation by a factor of √2.

Therefore, the standard deviation is multiplied by √2.

7 0

3 years ago

Which of the following is the solution of One-fourth x + 5 = 7?

True [87]

Answer:

x/4 + 5 = 7

-5 -5

x/4 = 2

*4 *4

x=8

Step-by-step explanation:

8 0

3 years ago

HELP ME PLEASE!!! THANK YOU

beks73 [17]

Answer:

the answer is b

Step-by-step explanation:

5 0

4 years ago

Find the slope of the line graph

Tamiku [17]

Answer:

-1

Step-by-step explanation:

the "slope" of a graph is rise / run

you divide the "rise" from one point on a graph to another by the "run" from one point to another.

We can use any two points on a graph to find this value. (There are other ways to find slope, but this is the easiest method for find the slope of a graphed line)

We can see two points on the line already pointed out, but we can also look to see other points (that require less math)

[remember, points are written as (x,y) ]
We can see a point at (1,0) and another point at (0, 1)

the "rise" between two points is the difference in y-values.

0 - 1 = -1

{you can also look at the graph/count the boxes}

So, the rise between these two points is -1.

(really, it's a drop)

the "run" between these two points is the difference in x-values.

1 - 0 = 1

so, the run between these two points is 1.

Now, all that's left to do is divide the rise / run:

-1 / 1 = -1