HELPPPPP

Area between two points
You might need: Calculator, Z table
A set of mathematics exam scores are normally distributed with a mean of 80.2 points and a standard deviation
of 4 points.
What proportion of exam scores are bęween 82 and 85.6 points?
You may round your answer to four decimal places,
Show Calculator
Stuck? Watch a video or use a hint.
Report a problem

Answers

Answer 1

Answer:

0.2379

Step-by-step explanation:

Answer 2

Answer:

0.2379

Step-by-step explanation:

Khan


Related Questions

In a certain Algebra 2 class of 28 students, 9 of them play basketball and 17 of them
play baseball. There are 6 students who play neither sport. What is the probability
that a student chosen randomly from the class plays both basketball and baseball?

Answers

Answer: Probability of a student playing both basketball and baseball is 4/28 or 14.3%

Step-by-step explanation:

1) Students playing atleast one sport = 28 - 6 = 22

2) N(Basketball ∩ Baseball) = N(Basketball) + N(Baseball) - N (Basketball U Baseball)

N(Basketball ∩ Baseball) = 9 + 17 - 22 = 4

3) Number of students playing both basketball and baseball = 4

Total number of students = 28

Probability of a student playing both basketball and baseball is 4/28

4/28= 0.1428571429 x 100%= 14.3%

Answer:4/28

Step-by-step explanation:4/28

Pls I need this ASAP! I’ll mark brainliest!



What is the sum of 4/10x + -1x + 1 7/10x?

Answers

Answer:

I think its 11x/10

Step-by-step explanation:

Line segment AB is shown on a coordinate grid: A coordinate grid is shown from positive 6 to negative 6 on the x-axis and from positive 6 to negative 6 on the y-axis. A line segment AB is shown with A as ordered pair 1, 3 and B as ordered pair 5, 3. The line segment is rotated 270 degrees counterclockwise about the origin to form A′B′. Which statement describes A′B′? (5 points) A′B′ is parallel to AB. A′B′ is half the length of AB. A′B′ and AB are equal in length. A′B′ is greater than twice the length of AB.

Answers

Answer:

A′B′ and AB are equal in length.

Step-by-step explanation:

Given that the location of the points are at A(1, 3) and B(5, 3).

Transformation is the movement of a point from its initial location to a new location. Types of transformation are reflection, rotation, translation and dilation.

Rigid transformation are transformation that preserves the shape and size when performed. Types of rigid transformation are reflection, rotation, translation.

Hence if AB is rotated 270 degrees counterclockwise about the origin to form A′B′, both A′B′ and AB are equal in length because rotation is a rigid transformation.

If A(x,y) is rotated 270 degrees counterclockwise about the origin, it becomes A'(y,-x).

Hence if AB is rotated 270 degrees counterclockwise about the origin to form A'(3, -1), B'(3, -5)

[tex]AB=\sqrt{(5-1)^2+(3-3)^2} =4\\\\A'B'=\sqrt{(3-3)^2+(-5-(-1))^2}=4,[/tex]

15 POINTS!!! PLEASE HELP!! ITS IXL IF YOU WANT JUST TELL ME THE FORMULA I NEED TO USE !!

Answers

Answer: $10,800.00

Step-by-step explanation: 10,000 times 1%= 100

100 dollars she gains for twelve months

100 divide by 12 months equals $8.33

She would have a total of $10,800.00

HELP I DONT HAVE MUCH TIME

Answers

Answer:

10 miles, 6 inches

Step-by-step explanation:

2.5 x 10

15/2.5

ryan took a history test with 25 questions. 60% of the questions were multiple choice. How many questions were multiple choice?

Answers

Answer:

15

Step-by-step explanation:

If n is an odd integer, which equation can be used to find three consecutive odd integers whose sum is 15?

Answers

Answer:

n+(n+2)+(n+4)=15

Step-by-step explanation:

Let n= the smallest odd integer

n+(n+2)+(n+4)=15

n=3

You drop a seashell into the ocean from a height of 40 feet. Write an equation that models the height h in feet) of the seashell above the water after seconds. How long is the seashell in the air? Round your answer to the nearest tenth.

Answers

Answer:

t=1.58 seconds

Explanation:

The equation which models the height h of the seashell above water after t seconds

Height of seashell above water after t seconds; h = 40 - 8t²

Time that seashell is in air; t = 1.58 s

The sea shell is dropped under gravity and thus, from Newton's equations of motion, we know that height/distance is;

S = ut + ½gt²

Since it was dropped from a height and not the ground, then;

h = height of shell from ground

h_o = height from which the shell was dropped.

Thus, we have;

h - h_o = ut + ½gt²

We are told that the seashell was dropped into the ocean from a height of 40 ft. Thus;

h_o = 40 ft

It was dropped from rest and so; u = 0 ft/s

Acceleration due to gravity is; g = -32ft/s² (since it is free fall)

Thus;

h - 40 = 0(t) + ½(-32t²)

h = 40 - 8t²

The time that the seashell in the air will be after it has hit the surface which will be when h = 0.

Thus;

0 = 40 - 16t²

16t² = 40

t² = 40/16

t² = 2.5

t = √2.5

t = 1.58 s

Read more at; brainly.com/question/17576926

It is believed that 11% of all Americans are left-handed. A college needs to know how many left-handed desks to place in the big lecture halls being constructed on its campus. In a random sample of 290 students from that college, whether or not a student was left-handed was recorded for each student. The college wants to know if the data provide enough evidence to show that students at this college have a different percentage of left-handers than the general American population? State the random variable, population parameter, and hypotheses. State the Type I and Type II errors in the context of this problem.

Answers

Step-by-step explanation:

The random variable (x) here would be a randomly selected student from the college that is left-handed.The population parameter would be 11% of America's total population. The total population as of 2019 is believed to be 328.2 million, and 11% of that figure is about 36.1 million (thirty-six million one hundred thousand).Hypotheses: Remember, the null hypothesis usually reflects the held view of the researcher, and since we are told the college wants to know if the data provide enough evidence to show that students at this college have a different percentage of left-handers than the general American population. It could read; There is a statistically significant difference in the percentage of left-handers in the college than the American population. While the alternate hypothesis could read; There is no statistically significant difference in the percentage of left-handers in the college than the American population.The Type I error implies rejecting the null hypothesis when it is actually true. That is: Rejecting that the % of all students from that college that are left-handed is 11 % when the % is really 11 %.The Type II error implies accepting the null hypothesis when it is actually false. That is: Failing to reject that the % of all students from that college that are left-handed is 11 % when the % is actually different.

Question 17 please I rly need help

Answers

Answer:

[tex]\frac{3}{5}[/tex]

Step-by-step explanation:

[tex]\frac{3}{4}[/tex] of [tex]\frac{4}{5}[/tex]

"of" translates to a multiplication symbol in math.

So it's asking for: [tex]\frac{3}{4}[/tex] x [tex]\frac{4}{5}[/tex]

You could cross out both fours getting to the answer of [tex]\frac{3}{5}[/tex]

0.6 as a number 3/5 as a fraction

Multiplying 2×1 3/7 is equal to how much

Answers

Answer:

20/7 or 2 and 6/7

Step-by-step explanation:

This equation works out to 2/1 • 10/7, which we can easily see equals 20/7, or 2 and 6/7, by multiplying the numerators and denominators.

ASAP ASAP ASAP
PLEASE HELP ME

Answers

Answer:

d

Step-by-step explanation:

Answer:

I rlly don't know how to help you bruh

Step-by-step explanation:

Why I can't understand the question and as to what they mean by if you fold it as shown though i know they probably mean where the shapes on the side are I say find someone else or take a wild guess.

4
The temperature at 6:00 P.M. is 70°F. The
temperature will drop 6°F each hour. Write an
equation in slope-intercept form that models the
temperature in y degrees Fahrenheit after
x hours.
O A y= 70x – 6
B y = 6x - 70
Oc y=-6x – 70
OD y=-6x + 70

Answers

Answer:

Step-by-step explanation:

D

Which one?
A. B. C. or D? ​

Answers

Answer:

I think that the answer is D

Step-by-step explanation:

26 beats in 1/6 minute

Answers

Answer:

If you wanna know how many beats are in a full minute, the answer is 156 beats

Step-by-step explanation:

1/6*6=1

26*6=156

Answer is 156 beats in one minute.

If 26 beats is in 1/6 of a minute, then multiply 1/6 by 6 to get 1. And multiply 26 by 6 to get 156.

I NEED HELP ITS URGENT!!! I WILL MARK BRAINLIST!! LOOK AT THE IMAGE ABOVE AND DO BOTH PROBLEMS BY SHOWING THE ENTIRE WORK!!

Do NOT answer if you DONT know. This could lead to serious consequences. Ex: “idk” could lead to the monitor marking you to loose points.

PLEASE HELP

Answers

Figure 1:
x+120=180.
x=180-120
x=60


Figure 2:
a+73=180(linear pair)
a=180-73
a=103


a+x=180(alternate interior angle)
103+x=180
x=180-103
x=77

Answer:

okay well all i can explain is the image on the far left, the answer would be x=112 and then for the one on the far right (im not sure ) i think its 17

explanation: so a straight line had 180 degress and the outside angle is 126 meaning that if you do 180-126 you can find the amount of the inside angle on the bottom right. When you do this you get 54 degress. Then remember that a triangle has a total of 180 degrees all added up so the final angle inside the triagle is 80 minus the sum of the other two angles. 58+54=112 and 180-112=68. remember that 68 is the angle on the INSIDE and x is clearly on the outside meaning that you would need to do 180-68. your final answer would be 112. (and im really sorry i couldn't answer the other ones they're too blurry  :(

Two angles are supplementary. One angle measures 26° Find the measure of the other angle.

Answers

Supplementary means it has to equal 180 all together so 180-26=154.
The other angle is 154 degrees
When an angle is supplementary, it means that they combine to 180 degrees. If you know that and the angle measure of the other angle, you can set up the equation 180=angle1+angle2. For this problem, the equation would be 180=26+angle2. Subtract 26 from both sides, and you get that the second angle is 154 degrees.

PLEASE LEND ME A HAND! I NEED IT BADLY!!!

Answers

Answer:

The first one is A

The second one is B

Is the statement true or false

Answers

Answer:

it is false

Step-by-step explanation:

False


-3 is lesser on the number line so remember "The Alligator" wants the higher number :)

Find 1/20 of 180 dollars

Answers

9, since 1/20 can be represented as 0.05, and 0.05 x 180 = 9


Hope it helps!

Answer:

9

Step-by-step explanation:

180÷20=9.

Could I please have BRAINLIEST?

rico bought 3.4 pounds of coffee that cost $6.95 per pound how much did he spend on coffee?
estimate: 18-28, 22-38, 36-50, or 8-18
solution: ??

Answers

Answer:

$23.63

Step-by-step explanation:

Your just adding decimals if I understood the question. So basically you just multiply 6.95 by 3 which gets you 20.85.

And then you divide 6.95 by 10 which is .695, and then multiply that by 4 which gets you to 2.78.

So now you just add those two up

20.85 + 2.78 = 23.63

Your welcome :)

Yours truly, Madison Estrella

Jason went to his local zoo that featured 38 reptile exhibits. If these reptile exhibits make up 95% of the zoo's exhibits, then how .any exhibits does the zoo have in total

Answers

Answer:

40 exhibits

Step-by-step explanation:

First, we will what we have gotten into fractions.

There are 38 reptile exhibits, but we dont know how much exhibits there is total, so we will make the total x: 38/x

We know that a percent is out of 100, so our fraction for the percent is 95/100

Now we are going to cross multiply 38/x and 95/100

38 * 100 = 3800

x * 95 = 95x, so 3800 = 95x

Divide both sides by 95 and you get 40.

Please mark brainliest, thank you!!

It takes Amelia one minute to swim 1/60 of a kilometer.how far can she swim in 12 minutes

Answers

1/5 kilometers
take 1/60 and multiply by 12, then simplify

3 90 Which is the best estimate of 7 A 2 B 6 C 12 D 24​

Answers

Answer:

C 12 is the best estimate

Step-by-step explanation:

Which of the following describes a square root of 41?
A.between 5 and 6
B.between 6 and 7
C.between 20 and 21
D.between 40 and 42

Answers

Answer:

the answer is b between 6 and 7

Step-by-step explanation:

i say this because the square root of 41 is 6.4031.

6.4031 is in between 6 and 7.

hope this helps :)

Find the Value of 2a2+5b2

Answers

Answer:

I get 92 but not really sire

find the value of x - PLEASE HELP

I need to show my work -

Thank you!!

Answers

Answer:

360=297+(x-36)+25

360=297+25-36+x

360=286+x

360-286=x

74=x

Answer:

x = 74 degree

Step-by-step explanation:

All those angles must add up to 360 degrees:

360 degrees  =  (297 + x - 36 + 25) deg, or

360 = 297 - 36 + 25 + x, or

x = 74 degrees

Solve for x in this inequality: -13 < 3x – 7 < 5

Answers

Answer:

−2<x<4

Step-by-step explanation:

A person is shopping for cereal, oranges, and eggs at a grocery store. Which of the following is an INPUT in this scenario?

The number of cereal boxes purchased
The cost per pound of oranges
The amount paid for eggs

Answers

Answer:

i got this on edg its b

Step-by-step explanation:

6 2/3 * -4 1/5 i really need help

Answers

Answer:

-28

Step-by-step explanation:

6 2/3*-4 1/5=

20/3*-21/5=

4/3*-21/1=

4/1*-7/1=

-28

Other Questions
Rewrite the following telegram in a complete sentence in the recent past tense in spanish. Usted acabar de casarse julio. A firm that has extra cash Multiple Choice Should always invest it in U.S. equities. should invest it in the safest projects available. should always reinvest it in new equipment. should pay it out to shareholders unless the firm can earn a higher rate of return on the cash than the shareholders can earn by investing in the capital market. please help im really confused with this question Which line provides evidence that Rainsfords actions are justified because Zaroff was unlikely to let him go?A)The general sucked in his breath and smiled. "I congratulate you," he said. "You have won the game."B)"Get ready, General Zaroff."C)"Splendid! One of us is to furnish a repast for the hounds. The other will sleep in this very excellent bed."D)He had never slept in a better bed, Rainsford decided.The answer is C Bird Corp.'s trademark was licensed to Brian Co. for royalties of 15% of the sales of the trademarked items. Royalties are payable semiannually on March 15 for sales in July through December of the prior year, and on September 15 for sales in January through June of the same year. Bird received the following royalties from Brian: March 15 September 15 20X4 $5,000 $7,500 20X5 6,000 8,500 Brian estimated that the sales of the trademarked items would total $30,000 for July through December 20X5. In Bird's 20X5 Income Statement, the royalty revenue should be:______. a. $13,000. b. $14,500. c. $19,000. d. $20,500. The Preamble to the Constitution states (that among other things) our government was designed "to promote the general welfare." This phrase indicates the Founding Fathers preferred the wordA) welfare state where in everyone is guaranteed food, clothing, and shelter. B) a capitalist society wherein everyone helps one another.C) a capitalist society wherein everyone has the opportunity to be successful. D) a great society where people are taken care of. The Georgia legislature nullified the Yazoo Act because ? A. Georgians were happy with its terms. B. the act gave land to all residents of Georgia. C. Georgians did not like the terms of the act. D. the act had been passed with the aid of bribery. How many milliters are in 90 ounces How do stereotypes about girls' mathematical skills affect them early on in life and later onin their careers?pls helppppp Write the equation of the line that passes through the given points. (0,-5) and (8,0) Pick one of the body parts shown in Sammi's model. How would a disease or injury to this organ affect the process modeled? How would it affect the body as a whole Should every American know what racism was about and what they did What is the slope of the line through (2. 8) and (4, 1)? Grover Cleveland believed in bimetallism. True or false ? Which of the following is a solution to the Equation 2x^2+4y=3=3x^2A)-1B)0C)3D)6 PLEASEEE HURRY!!! And please show work thank youuu pleaseeee i will give u the brainliest and we can play among us after If f(x) = 7x + 9, what is the value of f(2)? What is the slope of the equation of this line? (Put into y=mx+b form first). 6x+y=-1 A diagram of the human digestive system is shown below removing which organ would have the smallest impact on the digestion absorption and elimination