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3 years ago

Find the mean absolute deviation of these numbers 7,6,3,9,1

Mathematics

1 answer:

yarga [219]3 years ago

7 0

Answer:

12.8

Step-by-step explanation:

The mean is 5.2 so,

|7 - 5.2| + |6 - 5.2| + |3 - 5.2| + |9 - 5.2| + |1 - 5.2| = 12.8

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A large bucket that is full has a small leak on the bottom. The bucket loses water at the rate of 0.75 gallons per minute. After

Marta_Voda [28]

Answer:

Step-by-step explanation:

Multiply 8×.75 (6)

Add that to 21

8 0

3 years ago

Given the formula b=rs/t solve for s

Gekata [30.6K]

Answer:

$s = \frac{bt}{r}$

Step-by-step explanation:

To solve for s, you need to follow these steps.

First multiply by t both sides of the equation.

$b = \frac{rs}{t}$

$bt = \frac{rst}{t}$

We get $bt = rs$

Now we divide by r, both sides of the equation.

$\frac{bt}{r} = \frac{rs}{r}$

Finallly we obtain:

$\frac{bt}{r} = s$ or

$s = \frac{bt}{r}$

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4 years ago

What is an equation of the line that is perpendicular to −x+2y=4 and passes through the point (−2, 1) ?

Elza [17]

Answer:

y=-2x-3

Step-by-step explanation:

Since our equation is in standard form Ax+By=C we must first manipulate the equation so that we have it in the slope-intercept form such that y=mx+b. Therefore:

$-x+2y=4\\2y=x+4\\\\y=\frac{x+4}{2}\\\\y=\frac{1}{2}x+2$

Therefore, our slope is 1/2 and our y-intercept is 2. Now in order to determine a perpendicular line to the one stated above we must then get the negative inverse of our slope meaning $\frac{1}{2}=-2$ (negative reciprocal). Now we must use the point slope formula:

$y=m(x-x_1)+y_1$

Where m is the slope, x1 is -2 and y1 is 1 (because of the ordered pair given). And so:

$y=-2(x-(-2))+1\\\\y=-2(x+2)+1\\\\y=-2x-4+1\\\\y=-2x-3$

Therefore, the line that is perpendicular to -x+2y=4 is y=-2x-3.

6 0

3 years ago

PLEASE HELP! - The scatterplot below shows the number of weeks that students have been in keyboarding class and the number of mi

Setler [38]

Solution: Which statement about the scatter plot is true?

The correct answer is option A. As the number of weeks in class increases, the number of keyboarding mistakes decreases.

Explanation: From the scatter plot, we clearly see there exists a negative linear relationship between the number of weeks in class and the number of mistakes. And we know that if there exists a negative linear relationship between the two variables, then the values of two variables move in opposite direction. If the values of one variable goes up, the values of other variable go down. From the given scatter plot, we clearly see the number of mistakes goes down as the number of weeks in class increases. Therefore, the option A is correct

4 0

3 years ago

Read 2 more answers

2. Jack and Tim are racing remote-controlled cars. Jack's car travels 3.5 feet per

gregori [183]

D. 3.55s - 10 < 5.25s

7 0

3 years ago