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3 years ago

Ted and Meg have each drawn a line on the scatter plot shown below:

Mathematics

2 answers:

inn [45]3 years ago

9 0

Answer:

Line P, because it is closest to most data points

Step-by-step explanation:

expeople1 [14]3 years ago

8 0

Answer:

A.)Line P, because it is closest to most data points

Step-by-step explanation:

The line of best fit is a line which best represents the data and the data points are closely related to it.

It is also known as a trend line.

The line of best fit may pass through, some , none or all of the data points.

Also if the scatter plot does not pass through all the data point then the magnitude of positive residual must be approximately equal to the magnitude of negative residual of the data points.

Hence, by looking at the scatter plot we see that all the data points lie above Line R.

Hence, the Line R will not be a line of best fit.

But all the data points lie close to the line P , hence it act as a line of best fit.

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What is Y=-2x+50 graphed

alexandr402 [8]

Answer:

(See the attachment)

Step-by-step explanation:

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6 0

2 years ago

Carmen is drawing a card from a standard deck of playing cards. Find each probability below.

sergey [27]

Answer:

a) 0.25

b) 0.75

Step-by-step explanation:

The formula to find probability is

$\frac{Favorable \ outcomes}{total \ outcomes}$

Here as deck pf playing cards has 52 cards.

So total outcomes = 52

A deck of cards has 13 hearts.

Favorable outcomes = 13

Probability of drawing a Heart

$=\frac{13}{52}= \frac{1}{4}=0.25$

A deck of cards has 13 cards of clubs.

So the cards which are not clubs = 52-13=39

Hence favorable outcomes = 39

Probability of not drawing a club card

$=\frac{39}{52}= \frac{3}{4}=0.75$

3 0

2 years ago

If red oak lumber weighs 63 pounds per cubic foot, how much does one cord of red oak weigh? (A cord is a measurement for bulk wo

dsp73

Answer: Option C. 8,064 pounds

Solution:

Unit weight: U=63 pounds/foot^3

Total Weight: W=?

W=U*V

Volume: V

Length: l=8 feet

Width: w=4 feet

Height: h=4 feet

V=l*w*h

Replacing the knwon values in the formula above:

V=(8 feet)*(4 feet)*(4 feet)

V=128 feet^3

Replacing in the formula of total Weight:

W=U*V

W=(63 pounds/foot^3)*(128 feet^3)

W=8,064 pounds

8 0

3 years ago

What is the effect on the graph of the function f(x) =5x when f(x) is replaced with f(x) + 9?

Nimfa-mama [501]

Answer:

When we add 9 to the function we are shifting the function up 9 units.

Step-by-step explanation:

If it were added inside the function, it woulds shift it left or right.

But since it is outside the function, we will shift it up or down

When we add 9 to the function we are shifting the function up 9 units.

5 0

3 years ago

Explain to me in words how you would find the slope of this line and explain answer

Andrews [41]

Answer:
7/3

Explanation:
The slope of the line is equal to the rise/run, or in other words, the number of units the line travels upwards over the number of units the line travels to the right.

We can identify the slope using any two points on the line. Here, we can use the two points that are marked on the picture. The second point is 7 units above the first and 3 units to the right of the first, so the slope of the line is equal to 7/3.

Another way to calculate the slope of the line is the use this formula:

(y2-y1)/(x2-x1)

The first point is at the coordinate (1,-4) and second point is at the coordinate (4,3). When we plug these two coordinates into the equation, we get this:

(y2-y1)/(x2-x1)
->(3-(-4))/(4-1)

When we simply the fraction, we would get 7/3 and that would give us the slope.

I hope this helps!

7 0

3 years ago