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harkovskaia [24]

3 years ago

7

I need help please. I do not understand this.

1 answer:

uranmaximum [27]3 years ago

7 0

Answer:

B

Step-by-step explanation:

Okay, so we know they can run 1/4 a mile in 25 seconds. Now we want to know how far they can run in a minute ( 60 sec.). Because there is 25 seconds in 60 seconds 2.4 times, we multiply 1/4 by 2.4. We get 0.6. We know that there is 60 minutes in an hour, so we multiply 0.6 by 60. Now we know they can run 36 miles in an hour/ 36 miles per hour. So that eliminates C and D.

Anyways, B is correct because if you divide 1/4 by 25 you get 0.01. Multiply that by 60 to get a minute. (Because there is 60 seconds in a minute) Which is 0.6. Then multiply it again by 60 for an hour( because there is 60 minutes in an hour), and you get 36 hours.

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Answer:

24 per day

Step-by-step explanation:

'x' = days, so since 24 is with x, the rate of change is 24

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3 years ago

Jude factored 28x2 as (14x)(2x²).

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Answer:

Only Jude

Step-by-step explanation:

To show 28 x 2 we show 14 x 2 x 2

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lions [1.4K]

Answer:

A. One line

Step-by-step explanation:

Let rearrange the system of equations into explicit forms:

$y = -2\cdot x - 5$

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3 years ago

How much work in foot-pound is required to move a block 10 feet if the force is 200 lb

KatRina [158]

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4 0

3 years ago

Please helppp...

Brut [27]

Answer:

Option A is correct

The linear relationship displayed by the scatter plot is; y=x+10

Step-by-step explanation:

Scatter plot states that a set of points that represent data.

To determine the best equation for a set of points from the given figure.

In general, you can use these steps as follows:

First sketch the line that appears to most closely follow the data.

and also try to have the same number of points above and below the line.

You can choose two points on the line and estimate their coordinates.
Then, find the equation of the line that passes through the two points

To find the equation of linear relationship that displayed by the scatter plot

Using Slope-intercept form:

For any two points $(x_1, y_1)$ and $(x_2, y_2)$ the equation of line is given by:

$y-y_1 = m(x-x_1)$ where m is the slope and it is given by:

$m = \frac{y_2-y_1}{x_2-x_1}$

From the figure we choose two points on the line:

i.e, (9 , 19) and ( 15 , 25)

Calculate first slope m :

$m = \frac{y_2-y_1}{x_2-x_1}= \frac{25-19}{15-9}=\frac{6}{6}=1$

Now, using slope intercept form to find the equation of line;

$y-19 = 1 \cdot(x -9)$

or

y-19 = x -9

Add both sides 19 we get;

y -19 + 19 = x -9 + 19

Simplify:

y = x+10

Therefore, the function which best expresses the linear relationship displayed by the scatter plot is; y = x +10

8 0

3 years ago

Read 2 more answers