Will give brainliest to whoever can answer first!

Answer:

The score separating the bottom 47% from the top 53% is 112.8

Step-by-step explanation:

Let X denote the random variable whose values are normal with a mean of 114.5 and a standard deviation of 23.

Compute the 47th percentile as follows:

[tex]P(X<x)=0.47\\\\P(\frac{X-\mu}{\sigma}<\frac{x-114.5}{23})=0.47\\\\P(Z<z)=0.47[/tex]

The corresponding z-value is,

z = -0.075

*Use the z-table.

Compute the value of x as follows:

[tex]\frac{x-114.5}{23}=-0.075\\\\x=114.5-(0.075\times 23)\\\\x=112.775\\\\x\approx 112.8[/tex]

Thus, the score separating the bottom 47% from the top 53% is 112.8

Answer:

g[f(x)] = x + 7

Step-by-step explanation:

g[f(x)] = ( x + 3) +4

= x + 7

Answer:

pog champ

Step-by-step explanation:

Answer:

to make it 21

Step-by-step explanation:

Answer:

x and y are the two variables, although I think it should be x, y and xy

Step-by-step explanation:

Answer:

The probability of rolling an odd number is 3/6 which is basically 1/2

Answer:

The probability of rolling an odd number is 1/2 or 1:2 or 3:6.

Step-by-step explanation:

There ar a total of 6 numbers and 3 odd numbers.

Answer:

[tex]y=\frac{5}{4}x+\frac{15}{4}[/tex]

Step-by-step explanation:

Coordinates of segment with endpoints J and K are,

J(-4, 9) and K(6, 1)

Midpoint of the segment JK = [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

                                               = [tex](\frac{-4+6}{2},\frac{9+1}{2})[/tex]

                                               = (1, 5)

Slope of JK, [tex](m_1)=\frac{y_2-y_1}{x_2-x_1}[/tex]

                             = [tex]\frac{9-1}{-4-6}[/tex]

                             = [tex]-\frac{4}{5}[/tex]

Let the equation of perpendicular bisector passing through [tex](x_1,y_1)[/tex] and slope [tex]m_2[/tex] is,

[tex]y-y_1=m_2(x - x_1)[/tex]

By the property of perpendicular lines,

[tex]m_1\times m_2=-1[/tex]

[tex]-\frac{4}{5}\times m_2=-1[/tex]

[tex]m_2=\frac{5}{4}[/tex]

Therefore, equation of the line passing through midpoint (1, 5) and slope = [tex]\frac{5}{4}[/tex] will be,

[tex]y-5=\frac{5}{4}(x-1)[/tex]

[tex]y=\frac{5}{4}x-\frac{5}{4}+5[/tex]

[tex]y=\frac{5}{4}x+\frac{15}{4}[/tex]

Answer: the value of  – 15 – 9 + (– 7) is -31

Step-by-step explanation:

-15-9=-24

-24+(-7)=-31

Answer: I

believe it is -31

Step-by-step explanation:

calculator

Answer:

i took quiz and it was 45

Step-by-step explanation: also can you mark brainliest

Answer:

D 20%

try it its easy bro

Answer:

Class 1 would have the largest range

Step-by-step explanation:

You should mark me brainliest!

Answer:

100

Step-by-step explanation:

Pls mark brainliest

Ten times Ten is 100

Step-by-step explanation:

Does this help?

Answer:

i i honesly dont know im really sorry

Step-by-step explanation:

Answer:

10 acres, which is a more easily identified measurement than 435,600 square feet. To use the area conversion calculator simply select the unit that you want to convert from, which will be the amount that is known.

Step-by-step explanation:

Answer:

1228.31 mm^2

Step-by-step explanation:

The area for the circle is

(20^2*3.14)/2

The area for the rectangle

30*20

Total area

1228.31

Answer:

a = [tex]\frac{h - 54t}{t}[/tex]

I hope this helps!

Answer:

13.5 hours

Step-by-step explanation:

9hrs= 2 painting

9 divided by 2= 4.5

9+4.5= 13.5

Answer:

0.75

Step-by-step explanation:

Answer:

x is greater than or equal to -8

Step-by-step explanation:

multiply by 2 to get the x alone, and you have your answer.

Yes ofc, but I don’t see anything like a question or a picture of anything.

Answer:

I believe the answer would be 240

Step-by-step explanation:

If you divide 60 by 3 you will get 20 which is how much one sweatshirt will cost. Then you multiply 12 by 20 than you should get 240 which might be the answer. I hope that this is helpful and that you get it right.

Answer:

$240

Step-by-step explanation:

3 shirts cost $60

Take 3x4=12

Take $60x4= 240

There you have your answer.

You can also:

60÷3= 20

Each shirt cost $20

Take 12x20= 240

(That is how you will be able to solve the entire table if need be)

Hope this helps!

-AxekickNebulite

Answer:

I am in middle school

Step-by-step explanation:

Answer:

D. 5

Step-by-step explanation:

7 (x + 35) = 280

x + 35 = 280/7

          = 40

x = 40 - 35

  = 5

So it the correct option is D. Sorry I am late!!

9514 1404 393

Answer:

  ∠B = 53°

  ∠C = 127°

  ∠D = 127°

Step-by-step explanation:

The trapezoid is isosceles, as indicated by the hash marks on sides AD and BC. This means it is symmetrical about the vertical center-line. Angles on the right will have the same measures as the symmetrical angles on the left.

So, you know immediately that ∠B = ∠A = 53°.

Because AB ║ DC, ∠A and ∠D are supplementary. That is, ...

  ∠D = ∠C = 180° -53°

  ∠D = ∠C = 127°

Answer:

$1350

Step-by-step explanation:

5% of 1000 is 50

50x7 is 350

1000+350=1350

Answer:

A. y= 1/4x-5

Step-by-step explanation:

The slope is 1/4 and the y- intercept is -5.

Answer:

Your answer is: [tex]x=\frac{b}{9}[/tex]

or if you are solving for b:  [tex]b=9x[/tex]

Isolate the variable by dividing each side by factors that don't contain the variable.

Step-by-step explanation:

Hope this helped : )

Answer:

y=x -1

Step-by-step explanation:

parallel means the slope stays the same but the intercept changes accordingly

alsooo pls mark brainly ❤

Answer:

1/510

Step-by-step explanation:

Answer:

9 divided by 4,590= 0.00196078431

Step-by-step explanation:

its best to use the calculator after solving any equation.