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4 years ago

State the empirical rule as specialized to variables.

Mathematics

1 answer:

Alik [6]4 years ago

8 0

Answer:

bellshaped

a) 68

b) 95

c) 99.7

Step-by-step explanation:

A bell shaped distribution is a normal distribution.

Those percentages: 68, 95 and 99.7 correspond to the values that lies around the mean within one, two and three standard deviations.

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Write an equation from the following points (plug in the numbers you would use for "m" and "b"):

Annette [7]

Answer:

$y =\fracc{4}{3}x+5$

m=4/3 and b=5

Step-by-step explanation:

We want to find the equation of the line passing through (3,9) and (6,13).

We determine the slope using:

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

Let:

$(x_1=3,y_1=9), (x_2=6,y_2=13)$

We substitute the points to get:

$m = \frac{13 - 9}{6 - 3} = \frac{4}{3}$

We now use the formula:

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

We substitute to get:

$y - 9 = \frac{4}{3} (x - 3)$

Multiply through by 3 to get;

$3y - 27 = 4(x - 3)$

We expand further to get:

$3y - 27 = 4x - 12$

This implies that:

$4x - 3y = - 15$

We solve for y to get:

$y =\fracc{4}{3}x+5$

Therefore m=4/3 and b=5

4 0

3 years ago

The screen on Branna's new phone is 2.85 centimeters long what mixed numder represents the length of the phone screen

Genrish500 [490]

There are 2 ways you can do this:
2 and 85/100
<span>2 and 17/20
</span>Hope this helps!

4 0

4 years ago

A plane which passes through three edges of a cube produces a triangular cross section as shown.

77julia77 [94]

Answer:

The plane should pass through the central axis, along the vertical diagonals of the cube, in order to produce a cross section that is a regular hexagon.

Step-by-step explanation:

The plane should pass through the central axis, along the vertical diagonals of the cube, in order to produce a cross section that is a regular hexagon.

Please see the image attached for better visualization.

7 0

3 years ago

A scale drawing of a rectangular playground has a length of 20 inches and a width of 10 inches as shown.The scale is 1 inch = 15

nikitadnepr [17]

Answer:

4:9

Step-by-step explanation:

Find the area in inch first:

20 inch × 10 inch = 200 inch

Area in feet:

(20×15) + (10×15) = 450 inch

Area of the drawing : Area of the actual playground

200:450

Simplify it by dividing by 5

Last answer =4:9

3 0

2 years ago

Which equation can be simplified to find the inverse of y = 5x^2 + 10?<br>

Finger [1]

Answer:

Step-by-step explanation:

Here's the solution

f^(-1)(x)=(\sqrt(5(x-10)))/(5), -(\sqrt(5(x-10)))/(5)

8 0

2 years ago