The mean is 80, the standard deviation is 5. What number is 2.5 standard deviations above the mean? It is a normal distribtion.

Answers

Answer 1

Answer:

So the final answers would be (90 > z)-P(80<z) = .47725 or 47.725%

Step-by-step explanation:


Related Questions

KatyDid Clothes has a $120 million (face value) 25-year bond issue selling for 103 percent of par that carries a coupon rate of 9 percent, paid semiannually.

Answers

Answer:

8.704%

Step-by-step explanation:

The computation of the before cost of debt is as follows

Given that

Future value = $100

Present value = $103

NPER = 25 × 2 = 50

PMT = $100 × 9% ÷ 2 = $4.5

The formula is presented below:

= -RATE(NPER;PMT;PV;FV;TYPE)

After applying the above formula, the rate is 4.3518%

Yearly rate is

= 4.3518% ×2

= 8.704%

yesterday 50 bakery customers muffins and 11 of those customers bought bran muffins if 150 customers buy muffin's tomorrow how many bran muffins will the bakery need to bake​

Answers

Answer:

33 banana muffins

Step-by-step explanation:

11/50 = x/150

50x=1650

50x/50=1650/50

x=33 !

What is 5⁶ written in expanded form? o 5+5+5+5+5+5 5.5.5.5.5.5 ​

Answers

Answer:

5x5x5x5x5x5

Step-by-step explanation:

hey peeps i'll give you a brainliest & 25 pts for these answers plss help a dum b b out <333

Answers

you know that your line is perpendicular to the line with equation y equals 3x + 5 right whenever a line is perpendicular to another perpendicular not parallel to the line has a negative slope of the other line for example if you had a line with slope 2 x in the line perpendicular to that would have slope -1 / 2X so then you line in your question has slope -1 / 3 x by doing the Rococo of 3 and adding a negative sign to your equation sulfur looks like this y equals negative 1 / 3 x + B where is B is a constant 3 all you have to do is solve for b is a plug in the coordinate values 6 equals x minus -2 equals one in rearrange y equals -1 / 3 x + B negative two equals negative one over three 6 plus b negative two equals negative two plus be there for me easy roast F4U equation of the line is y equals -1 / 3 x

!!Help Please!!
Find cos 0 20 16 12

Answers

Answer:

the answer is 58 degrees (rounded) I have done a step by step explanation below.

Step-by-step explanation:

hope this helps...

3√-64/125 evaluate -4/5 -825 8/25 4/5

Answers

Answer:

a

Step-by-step explanation:

3rd root of 64=4

3rd root of 125=5

=-4/5 since there's a negative inside

A triangular prism has a base perimeter of 32 cm and a height of 15 cm what is the lateral surface area of the prism


A. 240 cm2

B. 432 cm2

C. 160 cm2

D. 480 cm2 ​

Answers

Answer: c

Step-by-step explanation

Beatrice sold a house for 225000 and makes 7.5% commission. How much does she make for the sale?
A) 1687.50
B) 16,875
C) 168,750
D) 1,687,500

Answers

7.5% x 225000
She makes 16875 commission

What relationship CANNOT be used to prove that AABC is congruent to ADEF?


Help please!!!

Answers

Answer:

D) Angle angle angle

If you know angles of all the three sides (Angle-Angle-Angle), that STILL wouldn’t help because no triangle can be drawn only knowing angles, no matter how many angles you know!

Explain why a 75% discount followed by an additional 25% discount is not the
same as a 100% discount.

Answers

Answer:

Because you first take 75% off of the first price then 25% off the discounted price

Example:

Lets say you have a item that cost $50 and you use a 75% discount card that will make the item $37.5. The you add an additional 25% off which will equal $9.38.

Andre surveyed a random sample of 20 students and

found that 13 of them were in favor of having school

start one hour later. The school has 250 students. Make

an estimate, based on Andre's survey for the number of

students in the school who are in favor of having school

start one hour later.

O 65 students

O 87 students

163 students

170 students

Answers

Answer: 163 students

Step-by-step explanation:

First find the percentage of students who were in favor of having school  start one hour later based on the sample of 20 students.

= 13/20 * 100%

= 65%

The apply this percentage to the total number of students in school to find your answer:

= 65% * 250 students

= 162.5

= 163 students

The number of students in the school who are in favor of having school start one hour later is; C: 163 students

What is the random sample?

We are told that 13 out of the 20 surveyed students were in favour of having school start one hour later. Thus;

Probability = 13/20 * 100% = 65%

Now, the school has 250 students and as such, the number of students in the school who are in favor of having school start one hour later is;

65% * 250 students = 162.5 ≈ 163 students

Read more about Random Sample at; https://brainly.com/question/14470673

BRAINLIEST!!!!! PLZ SOLVE BELOW!!!!

Answers

The length is 4.5 inches and the width is 2.5

divide the scale factor 1:16  to the real life lawn measure being 9 inches by 5  inches and that gives us

The length of  inches and  inches

Hope this helps

what is (3w-21) (w+8) 0

Answers

This answer is 4w(0)

In ΔQRS, q = 960 cm, r = 420 cm and ∠S=31°. Find the area of ΔQRS, to the nearest square centimeter.

Answers

Answer: 103832

Step-by-step explanation:

ABCD is an isosceles trapezoid.
measure of angle b=
measure of angle d=
measure of angle c=

Answers

Answer:

∡b = 53°

∡d = 127°

∡c = 127°

Step-by-step explanation:

in trapezoids, the two top angles are equal and the two bottom are equal

also, there are 360 degrees in any 4-sided polygon

53 + 53 + x + x = 360

2x + 106 = 360

2x = 254

x = 127

Answer:

127

Step-by-step explanation:

Can somebody please help me out:))

Answers

Answer:

50ft

Step-by-step explanation:

Hi,

Considering that one side is equal to 38 degrees, we know this isn't a 30 - 60 - 90 triangle.

One of the legs is equal to 40 feet

So, tan(b) = 40/x

tan(38 degrees) is 0.78 round up to 0.8 (if that's what your teacher wants)

0.8 = 40/x

0.8x = 40

x = 50ft

I hope this helps

Ordered Pairs REMEMBER! There is only 1 output(y) for each input(x). Is this a function or not? (8,-3) , (3,8) , (9,4) , (-2,2)

Answers

answer:

a function

step-by-step explanation:

hello there!

as you said, there is only able one output ( y ) for each input ( x ) for it able to become a function

here is a little example of a "table" to help me explain this a little better for you!

input ( x ) | output ( y)

      8       |       -3

      3       |       8

      9       |       4

     -2       |       2

since none the inputs have more then one output then that means it is a function

hope this helps you and please let me know if i had made a mistake in the problem, have a wonderful day!! :D

Can someone plz help with this problem??

Answers

Answer:

17,2

Step-by-step explanation:

X = 21×cos35° = 21 × 0,82 = 17,20

Billy got 4 hits in his last 20 at-bats. Based upon this information, how many hits would you expect Billy to get during his next 50 at-bats?

Answers

Answer:

10

Step-by-step explanation:

4 hits                     x hits

_______ =     _________

20 at-bats        50 at -bats

find the measure of angle b

Answers

Answer:

130

Step-by-step explanation:

sum of supplementary angle is 180

180-50

130

i...don't understand how to do this...​

Answers

The two angles with y in them need to add up to 180 degrees

10y + 3y + 11 = 180

Simplify:

13Y + 11 = 180

Subtract 11 from both sides

13y = 169

Divide both sides by 13

Y = 13

Now solve for those two angles:

10y = 10(13) = 130

3y + 11 = 3(13) + 11 = 50

The other two angles are the same as these.

The larger angles = 130

The smaller angles = 50

Moe painted the lid of the barrel. The circumference of the barrel is 32*3.14 inches. What is the area of the lid in square inches?

Answers

Answer: 803.84 inch²

Step-by-step explanation:

The lid will take the appearance of a circle so the area of the lid is the same as the area of a circle:

Area of a circle = π * radius²

The circumference of a circle is:

= π * diameter

Looking at the above, the diameter is 32inches because this is the figure to be multiplied with π = 3.14 to find the circumference.

Since diameter is 32, radius will be:

= 32 / 2

= 16 inches

Area = 3.14 * 16 * 16

= 803.84 inch²

HELPPP ASAP 10 POINTS

Answers

Answer:

4 Acute

Step-by-step explanation:

uwg2vrus7wgwceuwvw.

I need help with this . Please show workings.

1. A girl has eaten 60% of a cake .
a. What fraction of the cake has she eaten?
b. What percentage of the cake is left?

2.What percentage of 150 is 5​

Answers

Answer:

#1

a. Covert % to fraction

60% = 60/100 = 3/5

b. Whole is 100%, remaining is:

100% - 60% = 40%

#2

5/150*100%  = 3.33%

Solve 5x + 2y = 7 10x + 4y = 14 (1 point) (1,1) (2,3) No solution Infinitely many solutions​

Answers

Step-by-step explanation:

if you do 14 divided by 7 gives you 2 am I right

Complete the statement. Round to the nearest hundredth if necessary.

40 oz = lb

Answers

40 oz= 2.5 lb

One pound (lb) =16 Ounces
40/16=2.5

Answer:

2 paunds is the answer this is simple math broski

Verify that TUV ~ XYZ. Find the scale factor of TUV to XYZ.

Answers

Answer:

35

Step-by-step explanation:

Answer:

35

Step-by-step explanation:

A survey found that​ women's heights are normally distributed with mean 63.7 . And standard deviation 3.7 . The survey also found that​ men's heights are normally distributed with mean 67.5. And standard deviation 3.7. Consider an executive jet that seats six with a doorway height of 56.4. Complete parts​ (a) through​ (c) below.

Answers

Complete question :

A survey found that women's heights are normally distributed with mean 63.6 in and standard deviation 3.7 in. The survey also found that men's heights are normally distributed with mean 69.3 in and standard deviation 3.7 in. Consider an executive jet that seats six with a doorway height of 55.7 in.

1-What percentage of adult men can fit through the door without bending?

2-) Does the door design with a height of 56.35in. appear to be adequate? Why didn't the engineers design a larger door? Choose answer below

A. The door design is inadequate, because every person needs to be able to get into the aircraft without bending. There is no reason why this should not be implemented.

B. The door design is adequate, because the majority of people will be able to fit without bending. Thus, a larger door is not needed.

C. The door design is inadequate, but because the jet is relatively small and seats only six people, a much higher door would require major changes in the design and cost of the jet, making a larger height not practical.

D. The door design is adequate, because although many men will not be able to fit without bending, most women will be able to fit without bending. Thus, a larger door is not needed.

Answer:

A.) 0.135%

B.) C. The door design is inadequate, but because the jet is relatively small and seats only six people, a much higher door would require major changes in the design and cost of the jet, making a larger height not practical.

C.)

Step-by-step explanation:

Percentage of adult men that can fit the door without bending :

Obtain the Zscore :

Mean height of men, m = 67.5

Standard deviation, s = 3.7

Zscore = (x - m) / s ; where x = 56.4

Zscore = (56.4 - 67.5) / 3.7

Zscore = - 11.1 / 3.7

Zscore = - 3

P(Z < - 3) = 0.0013499 (Z probability calculator)

P(Z < - 3) = 0.0013499 * 100% = 0.13499%


Find the surface area of the prism.
7 m
7 m
7 m

Answers

Answer:

343m

Step-by-step explanation:

7*7*7=343

I'm sure it is right for the formula is :

L*w*h

the area of the circle is 314 sq centimeters what's the circumference

Answers

Answer:

62.82

Step-by-step explanation:

C=2πA=2·π314≈62.81592cm

Answer:

c=62.82 cm

Step-by-step explanation:

A=pir^2

C=2pir

C=2sqrt(piA)=2sqrt(pi×314)=62.81592 cm

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