Suppose the mean GMAT score is 550 with a standard deviation of 100. Hayden takes the GMAT and is told his z-score is 2.5. Interpret the meaning of a z-score in this context. And what's Hayden's Score?

Answers

Answer 1

z-scores are used to describe normal distributions

The interpretation of a 2.5 z score is that, Hayden's score is 2.5 standard deviations below the 550

How to interpret the z-scores

The z-score is given as:

z = 2.5

The mean and the standard deviation are:

Mean = 550

Standard deviation = 100

A z-score is the number of standard deviations above or below the mean.

Hence, a 2.5 z score is that, Hayden's score is 2.5 standard deviations below the 550

Read more about z scores at:

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Related Questions

major has 25 free minutes left until he needs to head to tennis practice he already spent four of the minute playing a video game what is the maximum number of minutes he can spend doing homework be for he needs to leave for practice

one step inequality word problems ​

Answers

Answer:

ok so he has 25 minutes in total and then we need to subtract the time hes alredy used so

25-4=21

so he has 21 minutes to do homework

Hope This Helps!!!

What is the slope of the line shown?

Answers

Step-by-step explanation:

I think y axis and x axis shows the light colour not sure about it

Slope: m=-1/4

Line going down = negative
Graph goes down one unit and over 4 units before next point

Please help me and please dont say something thats not related to my post. Also please explain your answer so I can understand it.

Answers

Answer:

A.9

Step-by-step explanation:

it asks how many the shelf can hold which would mean you should divide :

What is the slope of the line graphed below?

Answers

Answer:

B. 1/5

Step-by-step explanation:

Start at point (1,-2)

Then, go right 1 and up 5 to reach point (2,3)

The answer is 5
Remember slope is rise/run which is 5/1

pls help this is on prodigy
no link

Answers

Total cards signed:-

[tex]\\ \tt\longmapsto \dfrac{1}{4}+\dfrac{3}{5}[/tex]

[tex]\\ \tt\longmapsto \dfrac{5+12}{20}=\dfrac{17}{20}[/tex]

Cards left:-

[tex]\\ \tt\longmapsto 80-17/20(80)=80-68=12[/tex]

Find the x - and y -intercepts of the graph of the linear equation 3x+6y=24 .

The x -intercept is
.

The y -intercept is
.

Answers

Given :-

A linear equation in two variables , 3x + 6y = 24 .

To Find :-

The x and y intercept of the graph .

Solution :-

Given equation is ,

[tex] 3x + 6y = 24 [/tex]

To find the y intercept set x = 0 , we have ,

[tex] 3(0) +6y = 24 [/tex]

Simplify ,

[tex] 6y = 24[/tex]

Divide both sides by 6 ,

[tex] y = 4 [/tex]

Hence the y intercept is 4 .

[tex]\rule{200}2[/tex]

Now again to find x intercept , set y = 0

[tex] 3x +6(0)= 24[/tex]

Simplify ,

[tex] 3x = 24 [/tex]

Divide both sides by 3 ,

[tex] x = 8 [/tex]

Hence the x intercept is 8 .

x + 7y = 21
x + 4y = 15
Solve the simultaneous equations

Answers

Answer:

x = 7, y = 2

Explanation:

equations given:

x + 7y = 21

x + 4y = 15

make "x" the subject:

x + 7y = 21

x = 21 - 7y .........equation 1

x + 4y = 15

x = 15 - 4y .......equation 2

Solving both the equations simultaneously:

15 - 4y = 21 - 7y

-4y + 7y = 21 - 15

3y = 6

y = 6 ÷ 3

y = 2

If y is 2

Then x = 21 -7y;

x = 21 - 7(2)

x = 21 - 14

x = 7

x + 7y= 21

7 goes to RHS = X+ y = 21/7-3

x + 4y = 15

4 goes to RHS= x+y = 15/4 = 3.75

2+134 add both numbers and type it in the box when u get the answer

Answers

The answer is :
136

Explanation:
134
+ 2
= 136

Your Assignment
Is x = 6 a solution to the equation 5(x - 3) = x + 13?

Simplify both sides.

Answers

Answer: It is not the solution, the solution for side one is 15, and the solution for side 2 is 18.

I need the answer ASAP

Answers

scale factor = 1.25

30 : 24 = 1.25

or

35 : 28 = 1.25

The scale factor of this parallelogram is 5/4

In this question, we need to find the scale factor;

What is Scale Factor?

This is a factor to which a certain unit is multiplied or divided by. In this question, we have to find the scale factor first in order to know the missing side of the parallelogram.

Scale Factor

[tex]\frac{30}{24} = \frac{5}{4}[/tex]

We have check for one side, let us find the other side and compare

[tex]\frac{35}{28}=\frac{5}{4}[/tex]

The scale factor of this parallelogram is 5/4

Learn more about scale factor here;

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Bella has less than 240 minutes to spend assembling furniture each day. Today, she has spent 35.5 minutes assembling a chair. Now she will assemble x desks, each of which takes 45.5 minutes. What is the maximum number of desks that Bella can assemble?

Answers

Using an inequality, it is found that the maximum number of desks that Bella can assemble is of 4.

What is the inequality that represents the situation?

We consider that:

She has already spent 35.5 minutes assembling a chair.Then, she assembles x desks, each of which takes 45.5 minutes.She has less than 240 minutes to spend assembling furniture each day.

Hence:

[tex]35.5 + 45.5x < 240[/tex]

Then, solving the inequality:

[tex]x < \frac{240 - 35.5}{45.5}[/tex]

[tex]x < 4.49[/tex]

Considering the number of desks has to be an integer, maximum number of desks that Bella can assemble is of 4.

More can be learned about inequalities at https://brainly.com/question/25235995

Tomas painted 5/8 of each tile with blue paint.

He painted 62 tiles. What is the total amount of

times that he painted blue?

Answers

Answer:

38.75

Step-by-step explanation:

62*5/8=38.75

Answer:

38 3/4

Step-by-step explanation:

5/8 of 62 = 5/8 x 62

               = (5 x 62) ÷ 8

               = 310 ÷ 8

               = 38 3/4

PLEASE HELP MEEEEEEEEEE

Answers

Answer:

Step-by-step explanation:

1 pound of potato salad costs 2.96

0.75 pounds of potato salad costs x

1/0.75 = 2.96/x            Cross multiply

x = 0.75 * 2.96

x = 2.22  

0.75 pounds of potato salad costs 2.22 dollars.

3 4 5 6 7 8 9 10
TIME REMAINING
55:15
Suppose the temperature increases 8º to -7ºF. What was the starting temperature?
a.
15º
c.
-13º
b.
-20º
d.
-15º


Please select the best answer from the choices provided

A
B
C
D

Answers

Answer:

If it INCREASES then it is going closer towards zero since it is negative. So subtract 8 from (-7) and you get -15

so D is your answer

Find the difference.
(9ab-5a+4) - (9ab-2)

Answers

Answer:

-5

Step-by-step explanation:

Answer:

−5a+6

Step-by-step explanation:

hope this is right

zack has a bag containing 15 squares 4 circles 6 triangles and 6 hexagons. If he randomly choose one piece from the bag, what is the probability that he will grab a square or circle?

Answers

Answer:

19/31

Step-by-step explanation:

since there are 15 squares and 4 circles, both is 19

and since the total pieces 31

so the probability that he will grab a square or circle is 19/31

PLEASE HELP ME AND PLEASE DON'T PUT A COMMENT THAT DOESNT RELATE TO MY QUESTION BECAUSE IM RUNNING OUT OF POINT PEOPLE. THANK U SO MUCH I VERY MUCH APPRECIATE IT.

Answers

Answer:

Step-by-step explanation:

part a is -6

part b is -7.5

Answer:

Step-by-step explanation:


Part A:

warmer than => -

=> 7-13=-6


Part B:

Hours between 11 pm and 5 pm = 6.

6*(-1,25)=-7,5

Find the maturity value of a $473 note issued on October 4 at 8.5% for 190 days.

Answers

The maturity value on the bond is equal to $493.93

Data;

Face value = $473time = 190 daysrate = 8.5%

Maturity Value

This is calculated as the sum of face value and interest.

[tex]M.V = F.V + I[/tex]

Let's solve for the interest on the bond

[tex]I = PRT\\I = 473 * 0.085 * 190/365\\I = 20.93[/tex]

Let's add this up and solve

[tex]M.V = 473 + 20.93\\M.V = 493.93[/tex]

The maturity value on the bond is equal to $493.93

Learn more on maturity value of a bond here;

https://brainly.com/question/2132909

Please help me And please dont say anything that does not relate to what I posted because people keep doing that to me and its annoying. THANK YOU!!

Answers

Answer:

The answer is in the picture :)

Step-by-step explanation:

The figure above shows that the shaded triangular region with a hypotenuse of 5 cm has been removed from a rectangular tile with dimensions x cm by y cm. Of the following which best approximates the area in square cm of the tile before the piece was removed

Answers

Check the picture below.

Mind you that we have four 30-60-90 triangles.

The area of given rectangle before the piece was removed is 65 cm² approximately.

What is area of rectangle?

The area of a rectangle (A) is the product of its length 'a' and width or breadth 'b'. So, Area of Rectangle = (a × b) square units.

In Δ DEF,

∠EDF + ∠DEF + ∠DFE = 180° (angle sum property)

30° + 90° + ∠DFE = 180°

∠DFE = 60°

[tex]cos F = \frac{EF}{FD}(\frac{base}{hypotenuse}\\ \\ cos(60) = \frac{5}{FD}\\ \\FD = 5 * 2= 10[/tex]

[tex]cos D = \frac{ED}{FD}(\frac{base}{hypotenuse}\\ \\ cos(30) = \frac{ED}{10}\\ \\ED = \frac{\sqrt{3} }{2} * 10= 5\sqrt{3}[/tex]

In Δ AED,

∠AED + ∠EAD + ∠EDA = 180° ( angle sum property)

∠AED + 90° + 30°= 180°

∠AED = 60°

[tex]sinE = \frac{AD}{DE} (\frac{perpendicular}{hypotenuse}\\ \\sin(60) = \frac{AD}{5\sqrt{3} } \\\\AD= \frac{\sqrt{3} }{2}*5\sqrt{3} \\\\AD = 7.5[/tex]

In Δ DFC,

∠FDC + ∠DCF + ∠DFC = 180° (angle sum property)

30° + 90° + ∠DFC = 180°

∠DFC = 60°

[tex]sinF = \frac{DC}{DF} \\\\sin(60) = \frac{DC}{10}\\ \\\frac{\sqrt{3} }{2} *10 = DC\\\\DC = 5\sqrt{3}[/tex]

Area of rectangle = length * breadth = xy = AD * DC = [tex]7.5 * 5\sqrt{3} = 64.95[/tex]

Learn more about area of rectangle here

https://brainly.com/question/20693059

#SPJ3

plssss ill give anything. 2 x 3[7 + (6/2)]=

Answers

Please give Brainliest!

Answer:

60

Step-by-step explanation:

Get that A.

Find the original price of a pair of shoes if the sale price is $60 after a 60% discount.
What is the original price?

Answers

Answer:

The original price was $100

Step-by-step explanation:

[tex]\frac{60 dollars}{x} = \frac{60 percent}{100 percent} \\x = \frac{100percent*60dollars}{60 percent}\\ x = 100 dollars[/tex]

The sale price is $60 after a 60% discount ( that mean 100% - 60% = 40% )
⇒ The original price is: $60 ÷ 40% × 100% = $150

Answer: $150
Ok done. Thank to me :>

10 Solve the quadratic equation algebraically. Give solution(s) in exact values. 4.5x2 + 72 = 0​

Answers

Answer:

4i and -4i

Step-by-step explanation:

4.5x^2 = -72

x^2 = -16

x=-4i, 4i

What is the opposite of the opposite of 945?

Answers

Answer:

945.

Step-by-step explanation:

The opposite of 945 is -945.

the opposite of -945 is 945.

The opposite of the opposite of 945 is 945.

What is the regular price for a bicycle is $210.19. The sale price is $43.48 less than the regular price. What is the sale price and show how do you know.

Answers

Answer:

$166.71

Step-by-step explanation:

210.19 - 43.48 = 166.71

a) When x = 6, what is the value of 4x?
10
A
12
B
24
С
46
D
None of these
E
m의
b) When x = 6, what is the value of 5x + x?
36
A
56
B.
62
С
566
D
None of these
E
c) When x = 6, what is the value of x??
3
A
6
B
12
С
36
D
None of these
E

Answers

Answer:

a-24, b-36, c-36

Step-by-step explanation:

a) 4(6)=24

b) 5(6)+6=36

c) (6)^2=36

Answer:

a) c -24

b) a - 36

c) d - 36

Step-by-step explanation:

a) When x = 6, what is the value of 4x?

4x

4(6) = 24

b) When x = 6, what is the value of 5x + x

5x + x

5(6) + 6

30 + 6

36

c) When x = 6, what is the value of x^2?

x^2

6^2

36

Hope this helps!

Each marble bag sold by Carmen's Marble Company contains 3 red marbles for every 2 purple marbles. If a bag has 12 purple marbles, how many red marbles does it contain?​

Answers

Answer:

18

Step-by-step explanation:

Hello If You Have Please Help Thank You
Solve for x.

−7x−15<6

Answers

Answer:

x > -22/7

Step-by-step explanation:

Given inequality:

- 7x - 15 < 6

adding 15 to both sides:

==> -7x - 15 + 15 < 6 + 16

==> -7x < 22

dividing both sides by 7:

==> -x < 22/ 7

multiplying both sides by -1

(anytime you multiply the inequality by -1 you must flip the inequality sign– replace the "<" with ">")

==> x > -22/7

what is difactorization​

Answers

Answer:

do u mean factorization​?

if so, In math, factorization is when you break a number down into smaller numbers that, multiplied together, give you that original number. When you split a number into its factors or divisors, that's factorization. For example, factorization of the number 12 might look like 3 times 4.

Step-by-step explanation:

Hope this helps!

Answer:  it   an operation of resolving a quantity into factors; also : a product obtained by factorization

 

Step-by-step explanation:  hope i help

two friends share this block of chesse equally what fraction dose each child get

Answers

Answer:

1/2  in fraction each kid will get 0.50 in decimal and 50% in percent

Step-by-step explanation:

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