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3 years ago

Which data set has a variation, or mean absolute deviation, similar to the data set in the given dot plot?

Mathematics

2 answers:

ankoles [38]3 years ago

5 0

Answer:

I'd say B has similar data set

m_a_m_a [10]3 years ago

3 0

B does have similar data

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Which graph represents y=3 sqrt x+2

ziro4ka [17]

Answer:

The graph in the attached figure

Step-by-step explanation:

we have

$y=3\sqrt{x+2}$

Remember that the radicand must be greater than or equal to zero

$x+2\geq 0$

solve for x

subtract 2 both sides

$x\geq -2$

The domain is the interval [-2,∞)

All real number greater than or equal to -2

For x=-2

$y=3\sqrt{-2+2}=0$

The range is the interval [0,∞)

All real number greater than or equal to 0

Find the y-intercept

Remember that the y-intercept is the value of y when the value of x is equal to zero

For x=0

$y=3\sqrt{0+2}$

$y=3\sqrt{2}$

$y=4.243$

The y-intercept is the point (0,4.243)

therefore

The graph in the attached figure

7 0

4 years ago

A) Work out 4 1/7 + 1 1/2

Vesnalui [34]

Answer:

135/14

9 9/14

Step-by-step explanation:

29/7+11/2

4 0

3 years ago

Read 2 more answers

You're sitting on the ledge of a wall that is 300 feet away from a building. You have to

weeeeeb [17]

The total height of the building in question is;

600 ft

<h3>Angle of Elevation</h3>

The ledge of a wall is simply a projection from a building.

Now, we are told that this ledge is 300 ft from the building.

Angle of elevation to the building top = 60°
Angle of depression to the building bottom = 15°

Now, from the attached image, the distance from the ledge on the building wall to the top of the building is x.

Thus, by trigonometric ratio;

x/300 = tan 60

x = 300 × 1.732

x ≈ 520 ft

Similarly, via trigonometric ratio;

y/300 = tan 15

y = 300 × 0.2679

y ≈ 80

Thus;

Height of building = 520 + 80

Height of building = 600 ft

Read more about angle of elevation at;brainly.com/question/2881595

7 0

3 years ago

Let $A$ and $B$ be constants such that the graphs of the lines $x + 5y = 7$ and $15x + Ay = B$ are perpendicular and intersect a

Elan Coil [88]

Answer:

(A, B) = (-3, -129).

Step-by-step explanation:

First convert the first equation to slop-intercept form:

x + 5y = 7

5y = -x + 7

y = -0.2x + 1.4

The slope is -0.2 so the slope of the line perpendicular to this line has slope

-1/ -0.2 = 5.

Now, converting the second equation to slope-intercept form:

15x + Ay = B

Ay = -15x + B

y = (-15/A)x + B/A

So the slope -15/A = 5 so A = -3.

So y = 5x + B/-3

Substituting the point (-8, 3)

3 = 5(-8) + B/-3

B/-3 = 43

B = - 129.

3 0

4 years ago

Addicted to the Internet?The Ann Arbor public school officials would like to estimate the population mean daily Internet usage t

Lana71 [14]

Answer:

We can assure the Ann Arbor officials that after look the information we conclude that the mean is 8 h

Step-by-step explanation:

From CI ( 95 % ) = ( 6,7 ; 9,3 )

And the information "large random size sample" we conclude that the population has a normal distribution; a normal distribution has a bell shape curve, and data must spread symmetrically with respect to the mean, therefore the mean is:

6,7 + 9,3 = 16

16/2 = 8

If we need t check we can use the other CI

CI ( 99 % ) = (6,257 , 9,743 )

6,257 + 9,743 = 16

16/2 = 8

We are sure the mean is 8 h

6 0

3 years ago