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kifflom [539]
3 years ago
10

A picture is enlarged by keeping its width the same and increasing its length. The scatter plot shows the perimeter of the pictu

re (y) for different lengths (x):
Mathematics
2 answers:
max2010maxim [7]3 years ago
8 0

Answer: This is the CORRECT answer ----> y = 2x + 20

Step-by-step explanation: slope, y2 - y1/x2 - x1

replace it with these numbers 120 - 60/50 - 20=60/30

than,simplified it we get 2/1. so, now we  have the slope of our equation

y = 2x + b. but we still have b (or where the y intersects.) now are slope we have to change it to 1/2 because we are going backwards. So multiply 60 by .5, Thus will give us 30

Now we have y = 2x + 30, But that's not one of your answer,

So y = 2x + 20 cant be -20 because this is a positive y intersect and We know it is a slope of 2.

Therefore the answer is : y = 2x + 20

ALSO I know it's correct because I got it right on the test!! Hoped I helped :))

natima [27]3 years ago
5 0
Since you have not included the plot, I'll just tell you how to find the function of the graph that you are looking for.
Function of the straight line has the general formula: y = mx + c
where: 
m is the slope of the line and c is the y-intercept

So first we will need to find the slope (m):
Taking two points from the graph (x1,y1) and (x2,y2), the slope can be calculated as follows:
m = (y2-y2) / (x2-x2)

Then, we will need to find the y intercept.
we have the equation y = mx + c and we have m calculated
Take any point that belongs to the line and substitute with the values of x,y and m and then calculate c.

Now you have both m and c calculated, just substitute with the values in the formula.
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According to the Centers for Disease control and prevention, 20.8 of high school students currently use electronic cigarettes. A
Setler79 [48]

Answer:

H0 : p = 0.028

H1: p > 0.028

We conclude that there is not enough evidence to support the school counselor's claim they the use of electronic cigarettes in high school is higher Than 2.8%

Type 11 error

Step-by-step explanation:

H0 : p = 0.028

H1: p > 0.028

If null should not be rejected then;

We conclude that there is not enough evidence to support the school counselor's claim they the use of electronic cigarettes in high school is higher Than 2.8%

3.)

If the actual proportion is 0.034, which means 3.4%, this means it is actually higher. For failing to reject a false Null, then a type 11 error has been committed

6 0
3 years ago
Can you help <br> please and thank you
seraphim [82]

Answer:

C

Step-by-step explanation:

Total of 40 cups and 25 of them are chocolate so the proportion for chocolate would be 25/40

7 0
3 years ago
Read 2 more answers
A restaurant is making a large amount of salad dressing. The recipe calls for 15 ounces of vinegar and 54 ounces of oil. What is
ANTONII [103]
Hey. Let me help you out.

Restaurant makes salad dressings, and the recipe calls for two different ingredients - oil and vinegar. We know the amount of ounces of a certain food item; however, ratio is not set, so there is no way for us to know how much of oil and vinegar to use if we want to make half of the portion, or two (any number, really).

Ratios are set with a ":" sign in the middle, which is a division symbol. We can also set up a fraction; however, ratios are not usually set like in the former example.

In order for us to set a ratio, let's put both numbers we know in this ratio.

15:54

So, now that we know our ratio, our next step is to simplify it. In order for us to simplify it, we need to reduce both numbers by finding a common factor that will work out on either side.

I will be attaching an image alongside my question in order for you to study this material.

The number we will divide both sides will be 3, since it's the greatest common factor of both numbers.

5:18

This is a simplified version of the ratio. It's the lowest in terms of simplification we can get down to, so we can consider this problem answered.

Answer: 5:18 is the ratio of vinegar to oil.

4 0
4 years ago
17st - 16s + t =<br><br> I NEED HELP
Arisa [49]
It has to be in alphabetical order so, -16s + 17st + t I believe. If it’s incorrect, that’s because we’re barely learning it, sorry.

3 0
4 years ago
Find the measure of the numbered angles in rhombus ABCD
sasho [114]

Answer:

see the explanation

Step-by-step explanation:

we know that

In a Rhombus opposite angles are congruent and consecutive angles are supplementary

The diagonals are perpendicular and bisect the angles

so

step 1

Find the measure of angle 4

we know that

m\angle 4=27^o --->by the diagonals bisect the angles

step 2

Find the measure of angle 1

we know that

m\angle 1=27^o ----> by opposite angles are congruent

step 3

Find the measure of angle 2

we know that

m\angle 1=m\angle 2 ----> by the diagonals bisect the angles

so

m\angle 2=27^o

step 4

Find the measure of angle 3

we know that

m\angle 3=90^o ----> by the diagonals are perpendicular

step 5

Find the measure of angle 5

we know that

m\angle 5+27^o=90^o ----> by complementary angles

m\angle 5=90^o-27^o=63^o

step 6

Find the measure of angle 6

we know that

m\angle 6=m\angle 5 ----> by the diagonals bisect the angles

m\angle 6=63^o

3 0
3 years ago
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