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Ipatiy [6.2K]
2 years ago
6

Aidan is 68 inches tall. The average height of students in his class is 65 inches with a standard deviation of 3.6 inches. What

is the z-score for Aidan’s height?
Mathematics
1 answer:
uranmaximum [27]2 years ago
5 0

<span>Aidan is 3 inches above average. A z-score of 1.0 would refer to someone exactly 1 standard deviation above average, or 3.6 inches above average, or 68.6 inches tall. A z-score of 0.0 would refer to someone exactly average. What proportion of 3.6 is 3.0? That will be your z-score</span>
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Solve 11 - 1/2y= 3 + 6x for y.​
Ilia_Sergeevich [38]

Answer:

y = 12x+16

Step-by-step explanation:

Simplify both sides of the equation then isolate the variable.

Step 1, add 11 to both sides.

−1 /2 y+11+−11=6x+3+−11

−1 /2 y=6x−8

Step 2, divide both sides by (-1)/2.

You will be left with

y = 12x+16

3 0
2 years ago
Mason owns a trucking company. For every truck that goes out, Mason must pay the driver $13 per hour of driving and also has an
emmasim [6.3K]

Answer: The required system of equations are

y = 30x

13x + y = 258

Step-by-step explanation:

Let x represent the number of hours

that the driver worked.

Let y represent the number of miles that the truck drove.

For every truck that goes out, Mason must pay the driver $13 per hour of driving and also has an expense of $1 per mile driven for gas and maintenance. If on a particular day, his total expenses for the driver, gas and truck maintenance were $258, it means that

13x + y = 258

On that particular day, the driver drove an average of 30 miles per hour.

Speed = distance/time

It means that

y/x = 30

y = 30x

4 0
2 years ago
Read 2 more answers
Aaron drew the figure below for a school art project. What is the total area of the figure. Use the drop down menus to complete
Feliz [49]

Answer:

The trapezoid has a height of 3 inches, a shorter base measuring 2.75 inches, and a longer base measuring 4.25 inches. The total area of the entire figure is 33 square inches.

Step-by-step explanation:

I took the iready diagnostic :)

6 0
2 years ago
Read 2 more answers
As a promotion, the first 50 customers who entered a certain store at a mall were asked to choose from one of two discounts. The
qaws [65]

Answer:

A) Yes, because P (F∩S) = 0

Step-by-step explanation:

Hello!

50 customers of a store were asked to choose between two discounts:

Discount 1: 20% off all purchases for the day.

Discount 2: 10% off all purchases for the week.

28 choose discount 1

22 choose discount 2

F: the selected person choose discount 1.

S: the selected person choose discount 2.

Two events are mutually exclusive when the occurrence of one of them prevents the other from occurring in one repetition of the trial and the intersection between these two events is void with zero probability of happening.

In this case, since the customers were asked to choose one out of the two events, if the customer chooses the first one, then he couldn't have chosen the second one and vice-versa. Then the intersection between these two events has zero probability, symbolically:

P(F∩S)=0

I hope it helps!

8 0
2 years ago
The amount of money (in dollars) that it costs to purchase x square feet of carpet is given by f(x)=5.6x. The installation fee i
iren [92.7K]

Answer:

the installation fee is $104.40

Step-by-step explanation:

8 0
2 years ago
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