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KIM [24]
3 years ago
12

Please help this is on a test

Mathematics
1 answer:
kondaur [170]3 years ago
7 0

Answer:

64

Step-by-step explanation:

add 26 to 38

8 plus 6 is 14 and 20 plus 30 and 10 is 60 plus 4

so 64

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Which zero is significant in the number 50,540? what is the other zero called?
Anna11 [10]

Consider the number 50,540.We have to determine the significant figure.

Significant figures are the digits that carry meaning contributing to its measurement resolution.  It excludes the leading and trailing zeroes.

The first zero in the 50 is considered to be a significant number, while the second zero (in the 540) is not significant number.

The second zero is a called a placeholder zero. It can be removed by converting the number into scientific notation.

5 0
3 years ago
HELP!! What is the equation of the graphed line?<br> (y=mx+b)
Anettt [7]
So to fine slope you would use the formula down below:

rise/run

So use a graphed point, 0, -5 and you rise or count up quadrants up to a point and then horizontally move to when you find that point.

So from 0,-5 go up 9 vertically, and you would be on the 4

Go horizontal 3 spots and your on a designated point.

So the rise is four and the run is 3

So 4/3 is the slope

In the y= Mx + b equation you would set the equation like this:

y= 4/3 + -5

The m in this formula stands for the slop and the b stands for the y-intercept

The y-intercept is the point that is on the y-axis and where it starts.
6 0
2 years ago
Determine whether each scale factor produces an expansion or a contraction under a dilation of the original image
blondinia [14]

Answer:

see the explanation

Step-by-step explanation:

we know that

If the absolute value of the scale factor is less than 1, then the dilation produces a contraction of the original image

If the absolute value of the scale factor is greater than 1, then the dilation produces an expansion of the original image

so

<u><em>Verify each value</em></u>

1) -4

\left|-4\right|=4

4> 1

therefore

The dilation produces an expansion of the original image

2) 0.25

\left|0.25\right|=0.25

0.25 < 1

therefore

The dilation produces a contraction of the original image

3) -2/3

\left|-2/3\right|=2/3

2/3 < 1

therefore

The dilation produces a contraction of the original image

4) 2.3

\left|2.3\right|=2.3

2.3 > 1

therefore

The dilation produces an expansion of the original image

4 0
3 years ago
15 points!! Please help! please explain how you got you answers
Lynna [10]

We observe that a line will pass through 3 points, but to find a slope we only need two.

We see that it passes through points (assuming the scale of graph is 1 : 1) P_1(x_1,y_1)=P_1(0,1) and P_2(x_2,y_2)=P_2(2,-1).

We can use slope formula that applies for any line and produce the same slope for any two different points on the line

m=\dfrac{\Delta{y}}{\Delta{x}}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{-1-1}{2-0}=-1

So the slope is -1 also it intersects y-axis at n=1 so the general form of the linear function is

f(x)=mx+n

That is in your case

\boxed{f(x)=-x+1}

Hope this helps.

4 0
3 years ago
David collected random samples of data on the number of people who eat at restaurants daily. He created two dot plots to represe
Aloiza [94]

Answer:

look below

Step-by-step explanation:

The mean of Restaurant A is 17.3

The mean of Restaurant B is 15.8

The median of Restaurant A is 18

The median of Restaurant B is 15

The mode of Restaurant A is 18

The mode of Restaurant B is 15

The range of Restaurant A and B is 10

The line plots are the same because they have the same range

The line plots are different because they have different means, medians, and modes.

7 0
3 years ago
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