8 1/2=7 ?/2
NEED HELP ASAP:)

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

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:

https://brainly.com/question/25638875

Answer:

1, -2, -4, -6, -6.9, -6.99, -6.999

Answer:

611.73

Step-by-step explanation:

90 divided by 19 is 4.73 then add 607 which adds up to 611.73 then divide by 1 which is 611.73

==============================================

Explanation:

Split the graph into separate regions (see the diagram below)

The red trapezoid has the parallel vertical sides of b1 = 1 and b2 = 2. The height of the trapezoid is h = 2

The area of the red trapezoid is

A = h*(b1+b2)/2 = 2*(1+2)/2 = 3

--------------

The blue rectangle has a horizontal side of 2 and vertical side of 2. Its area is 2*2 = 4 square units.

--------------

The pink triangle has a base of 1 and height of 2

area = base*height/2 = 1*2/2 = 1 square unit

--------------

The green triangle has an area of base*height/2 = 2*2/2 = 2 square units

--------------

For any region above the x axis, it gets assigned a positive area. Anything below the x axis gets a negative area to counterbalance the positive areas.

The regions above the x axis add to 3+4+1 = 8 square units. Then we subtract off the area of the green triangle to get 8-2 = 6 square units.

Therefore,  [tex]\displaystyle \int_{0}^{7}f(x)dx = 6[/tex]

The radical is 3sqrt(x^18)

18/2=9

so, the radical is

3x^9

Answer:

its so good out here whwere you frm

Answer:

26+10-S

Step-by-step explanation:

Answer:

26+10-S or 36-S

Step-by-step explanation:

She has 26 shells and collected 10 more

26+10

And the she gave her sister S shells

26+10-S or 36-S

Answer:

−35k+28

Step-by-step explanation:

the answer is -35k+28

i hope its right

Answer:

Step-by-step explanation:

Height

The height of it is the distance between the bottom and the top. You can count grid squares (6), or you can subtract y-coordinates:

  4 -(-2) = 4 +2 = 6

The height of the figure is 6 units.

__

Length

The length is the difference between the left side and the right side. Once again, you can count grid squares (7), or you can subtract x-coordinates:

  4 -(-3) = 4 +3 = 7

The length of the figure is 7 units.

__

Shape

The two upper points are on the same horizontal line, as are the two lower points. The two left-side points are on the same vertical line, as are the two right-side points. Vertical and horizontal lines are at right angles, so all of the corner angles are 90°. The quadrilateral is a rectangle.

__

Area

The area of the quadrilateral is the product of its length and height:

  A = LH

  A = (7 units)(6 units) = 42 units²

The area is 42 square units.

__

Perimeter

The perimeter is the sum of the lengths of the four sides. There are to sides that are 6 units long, and 2 sides that are 7 units long.

  P = 2(6 +7) = 26

The perimeter is 26 units.

Answer:

60 ÷ 15

= 4 mins

the constant of proportionality for the number of 4 minutes to read 1 page.

Answer:

25 games were played

Step-by-step explanation:

I first found how many games were played in 10 days

and then multiplied it by 5 to know how many games were played in 50 days

(but I am not sure if it is correct since it said that 1 game was played everyday and with rules I am not sure if it is even possible)

feel free to correct me

Answer: 17

Step-by-step explanation:

Lisa and Melinda will play together 8 times

Lisa and Rahul will play together 12 times

Melinda and Rahul will play together 4 times

So total games are 24 -- but they all will play together 4 times.

Since, "exactly 1 game is played per day", they cannot play 2 and 3 together at any day.

So total number will be: (8-4) + (12-4) + (4-4) = 12

Now, we must consider 4 where they played all 3 together; so total number: 12 + 4 = 16

Also, they already played 1 game at 1st day; so total number: 16 + 1 = 17

Answer:

Step-by-step explanation:

The wording "fewer than" is translated to the math symbol "less than". The variable n represents the number of students.

  the number of students is fewer than 18

translates to ...

  n < 18

__

The wording "at least" translates to the math symbol "greater than or equal to."

  the number of students is at least 15

translates to ...

  n ≥ 15

Answer:

[tex]\frac{1}{3}(p-2)[/tex] ,    1/3(p-2)

Step-by-step explanation:

[tex]\frac{1}{3} p-\frac{2}{3}[/tex]

[tex]\frac{1}{3}(p-2)[/tex]

Answer:

900 km i think

Step-by-step explanation:

umm so first 8*10=80%, then 4500-80%

[tex]{{\boxed{{\tt{\color{blue}{✎A\color{red}{n\color{green}{s\color{lime}{w\color{skyblue}{e\color{cyan}{r\color{blue}{\color{purple}{}}}}}}}}}}}}}[/tex]

4x100+7x10+6x1+6x(1/10)+3x(1/100)+7x(1/1000)

Answer:

8

Step-by-step explanation:

first number = a, there are n numbers

so last number is a + n - 1

sum = [a + (a + n - 1)} * n/2 = (2a + n - 1) / 2 = 2012

n * (2a + n - 1) = 2012 * 2 = 4024

4024 is even, so n must be even, divisible by 2, 4, 8

4024 = 2 * 2012 = 4 * 1006 = 8 * 503

If n = 2, 2a + n - 1 = 2012, 2a + 2 - 1 = 2012, 2a = 2011, impossible.

If n = 4, 2a + n - 1 = 1006, 2a + 4 - 1 = 2a + 3 = 1006, 2a = 1003, impossible

If n = 8, 2a + n - 1 = 503, 2a + 8 - 1 = 2a + 7 = 503, a = 248

so n = 8, a = 248

Answer:

That equals to 5x5x5 which 5x5x5  = 125

But the correct answer on that quiz is 1st I think

Step-by-step explanation:

Sorry if im wrong

Answer:

75.0001

Step-by-step explanation:

Used a calculator

Answer:

Hope this helps you.......

Step-by-step explanation:

[tex] \boxed{\blue{\frak{DisneyPrincess29}}}[/tex]

Answer:

breadth =  12 cm and Length is 48 cm

Explanation:

Let the length be x,

then the breadth will be [tex]\frac{1}{4}[/tex]x

Formula for area of rectangle:

length * breadth

using the formula:

x * [tex]\frac{1}{4} x[/tex] = 576

x² = 4(576)

x² = 2304

x = √2304

x = 48

Therefore the Length is 48 cm

Then the breadth  [tex]\frac{1}{4}[/tex] * 48 = 12 cm

Answer:

8

Step-by-step explanation:

45.5 + 15.5x < 175

15.5x < 129.5

x < 8.35

Answer: 8

==========================================================

Explanation:

Order doesn't matter when it comes to committees without rankings. Each person on the committee is of equal rank to anyone else. This means we'll use a combination instead of a permutation.

We have 8 men and 3 seats to fill for the men. Plug n = 8 and r = 3 into the nCr combination formula

n C r = (n!)/(r!(n-r)!)

8 C 3 = (8!)/(3!*(8-3)!)

8 C 3 = (8!)/(3!*5!)

8 C 3 = (8*7*6*5*4*3*2*1)/((3*2*1)*(5*4*3*2*1))

8 C 3 = (40320)/((6)*(120))

8 C 3 = (40320)/(720)

8 C 3 = 56

This means there are 56 ways to select the three men from a pool of eight.

Through similar steps, you should plug n = 7 and r = 3 into the nCr combination formula to get 7 C 3 = 35. This means there are 35 ways to pick the three women from a pool of seven.

Overall, there are 56*35 = 1960 ways to select the entire committee of 3 men and 3 women (from a pool of 8 men and 7 women).

Answer:

Step-by-step explanation:

50:100 and 1:2

15:20 and 3:4

15:16 and 5:2

10:5 and 2:1

Hope this helps!

Answer:

For an equation such as y = 2.6x, the slope is the unit rate, which is the coefficient of x. For a table, the change in y divided by the change in x is the unit rate, or slope.

Answer:

Your answer is 8/15.....

Answer:

12. 5

11.

10

10

15. 7

14. 11

2

=

16

16

18. 3

+

11

17

3

4

co

loo

8

Step-by-step explanation:

12. 5

=.

10

10

15. 7

14. 11

Answer:

D) 40, 76, 86

Step-by-step explanation:

..........

Answer:

%100 Elon Musk going to Mars

Step-by-step explanation:

yes yes yes

i don't know if this is the answer you want

please mark brainliest i need 3 more