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Tasya [4]
3 years ago
10

BRAINLIESTTT ASAP! PLEASE HELP ME :)

Mathematics
1 answer:
saveliy_v [14]3 years ago
8 0
The equation would be m=25xd
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The standard deviation of a probability distribution is a: A. measure of variability of the distribution B. measure of skewness
GuDViN [60]

Answer:

The standard deviation of a probability distribution is a measure of variability of the distribution.

Step-by-step explanation:

We have been given an incomplete statement. We are asked to complete the given statement.

We know that standard deviation is measure of variability or dispersion of a set of data values.

It tells up how much a data point is spread out from the average or mean of the data set.

Therefore, option A is the correct choice.

4 0
3 years ago
What is the domain of the square root function graphed below?
erma4kov [3.2K]

Answer:

The domain of the graph must be x\ge \:-4.

Therefore,

x\ge \:-4\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\ge \:-4\:\\ \:\mathrm{Interval\:Notation:}&\:[-4,\:\infty \:)\end{bmatrix}

Hence, option a is true.

Step-by-step explanation:

From the graph, it is clear that the graph is heading towards positive infinity from x=-4.

The point x=-4 is included in the graph as the starting point of the graph i.e. x=4 is showing a closed circle on x=4, and heading towards positive infinity onward.

i.e. [-4, ∞)

Hence, the domain of the graph must be x\ge \:-4.

Therefore,

x\ge \:-4\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:x\ge \:-4\:\\ \:\mathrm{Interval\:Notation:}&\:[-4,\:\infty \:)\end{bmatrix}

Hence, option a is true.

3 0
3 years ago
If your cell phone bill was 67.82 and there is a 1/20 late fee how much will your bill be with the late fee included?
almond37 [142]

Answer:

Assuming 1/20 is a 5% late fee:

$21.211

Step-by-step explanation:

67.82 x 1/20 = 3.391

67.82 + 3.391 = 71.211

4 0
2 years ago
The Augello family is driving from Columbus to St. Louis at a constant rate of 65 miles per hour. The distance between the two c
Anestetic [448]

Answer:

y = -65x + 420

Step-by-step explanation:

Slope-intercept form equation is given as y = mx + b

Where,

y = distance remaining

x = hours driven

m = slope/constant rate. In this case, the value of m would be -65. This means the distance will reduce at a constant rate of 65 miles per hour.

b = y-intercept, which is the initial value or the distance between the cities = 420

Plug in the values into the slope-intercept equation, to represent the distance y in miles remaining after driving x hours. You would have:

y = -65x + 420

7 0
2 years ago
Rhea is writing a paper, and she notices that she can write 1.25 pages every 2 hours.
Ymorist [56]

Answer:

Rhea's estimation is unreasonable.

Step-by-step explanation:

Identify what you know:

1) Rhea calculates that she can write 1.25 pages every 2 hours

2) Rhea is calculating how long it would take her to write 6 pages.

Using Rhea's initial calculation, we can figure out roughly, how long it would take her to finish 6 pages.

First we need to divide 6 by 1.25, to figure out how many "2 hour" periods it would take Rhea.

6/1.25 = 4.8

4.8 x 2 = 9.6

It would take Rhea roughly 9.6 hours to finish 6 pages, which is 3.6 hours more than her original estimation. Thus, her estimate is unreasonable.

7 0
2 years ago
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