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Shalnov [3]
3 years ago
7

Can someone help me with this question?

Mathematics
1 answer:
natali 33 [55]3 years ago
4 0
I sort the data from the lowest
17.7, 18.3, 19.2, 21.1, 21.7, 23.2, 23.4, 23.7, 25.8, 26.2, 27.3, 27.4, 29.4, 29.8, 31.6, 33.5, 37.7, 38.9, 44.9

Then I classify the data to the appropriate class
1) Class 15.0-20.9
There are 3 data, those are 17.7, 18.3, and 19.2
2) Class 21.0 - 26.9
There are 7 data, those are 21.1, 21.7, 23.2, 23.4, 23.7, 25.8, 26.2
3) Class 27.0 - 32.9
There are 5 data, those are 27.3, 27.4, 29.4, 29.8, 31.6
4) Class 33.0 - 38.9
There are 3 data, those are 33.5, 37.7, 38.9
5) Class 39.0 - 44.9
There is 1 data, that is 44.9

SUMMARY
BMI Class and frequency
15.0 - 20.9  ⇒ frequency 3
21.0 - 26.9  ⇒ frequency 7
27.0 - 32.9  ⇒ frequency 5 
33.0 - 38.9  ⇒ frequency 3
39.0 - 44.9  ⇒ frequency 1
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A car dealership had $114,000 in average monthly sales. If you made 30% of all the sales, what is your total sales? help me
Tcecarenko [31]

Answer:

I think it's $34,200

Step-by-step explanation:

$114,000 x 30% divide 100 = 34,200

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The perimeter of a regular hexagon is ninety-six centimetres. Find the length of each side.​
rusak2 [61]

Answer:

54cm, which is one side length

Step-by-step explanation:

The sum of all of the sides are 6, it's a regular hexagon the perimemter is just six times one side 36cm

Hope It Helps!

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Urgent answer needed pls​
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Answer:

48 cm²

Step-by-step explanation:

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the height = 2×24/8 = 6cm

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#14= B. 11
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Read 2 more answers
A<br> Write the equation for<br> line that<br> passes through (1, 1) and (-1,7)
KengaRu [80]

Answer:y=-3x+4

Step-by-step explanation:

You want to find the equation for a line that passes through the two points:

(1,1) and (-1,7).

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

First, let's find what m is, the slope of the line...

The slope of a line is a measure of how fast the line "goes up" or "goes down". A large slope means the line goes up or down really fast (a very steep line). Small slopes means the line isn't very steep. A slope of zero means the line has no steepness at all; it is perfectly horizontal.

For lines like these, the slope is always defined as "the change in y over the change in x" or, in equation form:

So what we need now are the two points you gave that the line passes through. Let's call the first point you gave, (1,1), point #1, so the x and y numbers given will be called x1 and y1. Or, x1=1 and y1=1.

Also, let's call the second point you gave, (-1,7), point #2, so the x and y numbers here will be called x2 and y2. Or, x2=-1 and y2=7.

Now, just plug the numbers into the formula for m above, like this:

m=

7 - 1

-1 - 1

or...

m=

6

-2

or...

m=-3

So, we have the first piece to finding the equation of this line, and we can fill it into y=mx+b like this:

y=-3x+b

Now, what about b, the y-intercept?

To find b, think about what your (x,y) points mean:

(1,1). When x of the line is 1, y of the line must be 1.

(-1,7). When x of the line is -1, y of the line must be 7.

Because you said the line passes through each one of these two points, right?

Now, look at our line's equation so far: y=-3x+b. b is what we want, the -3 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the two points (1,1) and (-1,7).

So, why not plug in for x and y from one of our (x,y) points that we know the line passes through? This will allow us to solve for b for the particular line that passes through the two points you gave!.

You can use either (x,y) point you want..the answer will be the same:

(1,1). y=mx+b or 1=-3 × 1+b, or solving for b: b=1-(-3)(1). b=4.

(-1,7). y=mx+b or 7=-3 × -1+b, or solving for b: b=7-(-3)(-1). b=4.

See! In both cases we got the same value for b. And this completes our problem.

The equation of the line that passes through the points

(1,1) and (-1,7)

is

y=-3x+4

8 0
3 years ago
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