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GYanggg, can you please rewrite the second question? i didn't understand it.

thanks!

Numbr divisible by 9  =  1000 / 9  =  111

So....number not divisible by 9   =   

1000 -  111  =

889

These are binomial probabilites

First one

C(22,7) (.092)^7* (.908)^15  = .00236  ≈  .22% 

Second one  : At  most 5   =   1 - P(7 have colorblindness) - P(6 have colorblindness)  =

1 - .00236  - C(22,6)(.092)^6 (.908)^16  = .9879  

Last one :  At least 3  =  1  - P(0) - P(1) - P(2)  =

1 - C(22,0)(.908)^22  - C(22,1)(.092)(.908)^21 - C(22,2)(.092)^2(.908)^20  = .3299

1.

Area  =   (1/2) (14.2) (8) sin (99° )   ≈   56.1 in^2

2.

Area  =  (1/2) (14) (12) sin (20°)  ≈  28.7 ft^2

3.

Area   = (1/2)(5) (4)sin(79°)  ≈ 9.8 ft^2

4. 

Area  =   (1/2) (40)(25) sin (80 ° )  =  492.4 m^2 

Hi the answer is C. Yes, it is reasonable because the ME is 5.6% and the population proportion of 66% falls within the sample interval of 73.0% ± 5.9%

y=1/12*x^2 ~ Incorrect: Directrix: y=-3

y=-1/12*x^2 ~ CORRECT! Directrix: y=3 | Focus: (0,-3)

x=-1/12*y^2 ~ Incorrect: Directrix: x=3

x=1/12*x^2 ~ Incorrect: Directrix: x=-3

Hope that Helps!! :D

Could you also help me with number 3. :)

1.  Remember we have to convert feet to inches

5 ft  = 60 in        2 ft   =  24 in       1ft  = 12 in

Volume of tub   =  60 * 24 * 12  =  17280 in ^3 

Volume of mug  =  pi * (1.5)^2 * 4  ≈  28. 3 in^3

Note  1 * 10^4  =  10,000

So....the correct answer is  "D"

2.  B is correct

Area of the base  =  36

Area of sides

We have 4 equal triangles.....each  has a base of 6  and a height of 3....so the area of the sides  =

4 * (1/2) (6) (3)   =    2 * 6 * 3    =  36

So....the toal area  is  [ 36 + 36 ]  =    72  ft^2 

You are correct  Agent    !!!!!

1.

x  - 120

_______   =  -0.25

  4.3  

x - 120  =  -1.075

120 - x  =  1.075

x =  118.925 ≈  119 g

Here's another way

We have 9 ways to select the first digit  and 10  ways to select the second digit

So.....the number of 4 digit palindromes is  just

9 * 10   =

90

Notice that we can figure the area of this triangle in two ways

One of the bases  = 20....and the height to this base = 12

So the area  is  (1/2) 20 * 12  =   120  units^2

Also.....the other base  = 30  and the height of this base   = h

So

Area  of triangle  = (1/2) * 30 * h

120  =  15 * h        divide both sides by  15

8 ft   =  h

Donuts are good. Thats why i named this acount Donut!

Total  Area  =   40 * 32  =  1280 ft^2

Area  occupied by each chair  = 4 * 5  =  20 ft^2

Number of chairs  =    1280  / 20   =     61   ≈   60 chairs

Surface  area  =   4 * 3 *  r^2

2700  =  12 * r^2        divide both sides by  12

225  = r^2         take the positive root

15  = r

So....the volume  is

(4/3) * 3 * r^3   =

4 * (15)^3   =    13500 cm^3

Good luck on the move.....!!!!!

We can break this up into 4 areas

If  we draw a horizontal lne at y  = 2, we have two triangles at the top.....each with a base of 4  and a height of 3

So...their total areas  =   4 * 3  =   12 units^2

Next.....if we draw another horizontal line at   y = -1....we will have a rectangle with a width of 8 and a height of 3......so its area  is   8 * 3   =   24 units^2

Finally...we have a triangle at the bottom with a width (base)  of 8   and a height of 2.....so its area is

(1/2) * 8 * 2   =    8 units^2

So....the total area is

[ 12 + 24  + 8  ] =    44 units^2

I have 2 problems I need help with:

.1.

lim             (1 + h)^2  - 1^2

h →0        _____________

                         h

lim      ( 1 + 2h  + h^2  -  1)

h →0  ________________

                        h

lim       2h  +  h^2

h →0  ________

                  h

lim           h  ( 2  + h)

h →0  ____________

                  h

lim         2 +  h          =         2

h →0

lim           √x  -  2

h → 4      ________            we can factor the denominator  as

                 x   -   4   

lim                  √x - 2

h → 4        ___________

               (√ x - 2) (√x + 2)

lim                1                           1                            1                 1

h → 4      _______     =        _______       =      _______ =     ___  

                 √x + 2                   √4 + 2                     2  + 2             4

The unknown scale factor is  found by :

.938 / .878    ≈ 1.068

I need help with this question: What is the equation of a line, in slope-intercept form of a line that passes through the point (9, 2) and is perpendicular to the line 2x - y = 8?

I need help with this question: What is the point-slope form of the line passing through (2, -12) and parallel to y=3x?

Yeah. I can't figure out the problem with out the original students.

x = original students

x * 0.07 = ?(Percent of students error)

?(above) + x = your answer

...I think...

http://www.statisticshowto.com/probability-and-statistics/hypothesis-testing/margin-of-error/

And I get donuts too!

Enjoy eating that totally real, very scrumptious, virtual cake Jeff!

I’m not sure everything i wrote is all that was provided :/