A 90% confidence interval is found to be (72, 78). What is the margin of error?
A. 6
B. 2.7
C. 5.4
D. 3

Answers

Answer 1

Answer:

Step-by-step explanation:

D. 3


Related Questions

The dice is thrown 50 times and lands on an odd number 28 times .work out the experimental probability of getting an even number​

Answers

Answer:

0.44

Step-by-step explanation:

50-28=22

22/50

11/25

about 0.44

A cylinder has a base radius of 3 inches and a height of 3 inches. What is its volume in cubic inches, to the nearest tenths place?

Answers

84.8 is the answer hope this helps

consider the diagram below​

Answers

The answer is 70 degrees

Solve the equation for x:

2(x+3)−12=18

Answers

Answer: X=12

→Hope this helps!←

what is the volume ( round to nearest tenth if necessary)

Answers

Answer:

V = 240 cm^3

Step-by-step explanation:

The volume formula for a cone or triangular prism such as this one is

V = (1/3)(base area)(height), which here is:

V = (1/3)(80 cm^2)(9 cm), or V = 240 cm^3

When have you felt scared of someone you didn’t know? How did you overcome this
fear?
give me a fake story.

Answers

Answer:

the most I have ever felt fear of someone was ar a local gas station or my job lol but basically I was working behind the register and this couple comes in and looks pretty sus but I don't think much of it so I greet them and scan all their items and right as I bag their stuff, the wife literally takes the bag, swings it around, and knocks me out and then they run off with their stuff. So I was left there unconscious for about a hour before the next customer came and called the police. I haven't nessecarily gotten over that fear yet but I do have a glock now.

Alaina has 7 in her bank account and earns 6 each day . joel has 48 in his banck account and earn 8 earch day in how many days will joel have as much money alaina

Answers

Answer:

I think you wrote something wrong.

Step-by-step explanation:

If Alaina has $7 in her bank account and Joel had $48 in his Joel already has more then Alaina but I will attempt to teach you how to solve these types of problems.

for this example I'm giving Alaina 79 dollars.

First we know were starting with 79 dollars and increasing 6 dollars each day so the equation for this is; y = 6x + 79 that is Alaina's equation.

For Joel our equation will be; y = 8x + 48.

Since they already have 79 and 48 dollars in their bank we put those as our B in the equation cause they are our y-intercepts. (Y = mx + b) Next we know their increasing by 6 and 8 dollars a day so we make those our m. Once we have these equations we can plot them and see where the lines meet. (thats our answer) I plotted them on desmos graphing calculator.

They crossed at (15.5, 172) Which means it will take 16 days for Joel to catch up they will both have 172 dollars in the bank account on the 16th day.

Hope this helps!

How many solutions can be found for the equation 3z + 2[z - 3) = 7z+12

Answers

Given :-

3z + 2(z - 3) = 7z + 12

Solution :-

3z + 2(z - 3) = 7z + 12

3z + 2z - 6 = 7z + 12

3z + 2z - 7z = 12 + 6

5z - 7z = 18

-2z = 18

z = 18/2

z = 9

[tex] \\ [/tex]

Answered by - ItzAdmire

Given :-

3z + 2(z - 3) = 7z + 12

Solution :-

3z + 2(z - 3) = 7z + 12

3z + 2z - 6 = 7z + 12

3z + 2z - 7z = 12 + 6

5z - 7z = 18

-2z = 18

z = 18/2

z = 9

[tex] \\ [/tex]

Answered by - ItzMaster

Which situations illustrate that the sum of opposite numbers is zero?
A) Will receives a gift card for $60 and spends all of it on a video game.
B) John receives $50 for mowing a lawn and an additional $50 for walking
dogs this week
C) Kyle deposits $600 into his account on Monday and withdraws $600 at the
D) ATM the next day.
Sheila advances 5 squares on a board game. On her next turn, she goes
forward 5 squares.
E) The animal shelter receives $3000 in donations and pays an invoice of
$3000 for food and supplies.

Answers

Answer:

Step-by-step explanation:

I think it’s c

Please help me! I have to sumbmit in 15 minutes!

Ava filled 3 cups with different amounts of water. The amounts were 225 ml, 370 ml, and 435 ml of water. Which of the following is the total amount of water, in liters, that Ava used to fill the 3 cups?

Answers

Answer:

The answer is 1030 ml

Hope this helps

Answer:

1.03 liters

Step-by-step explanation:

225 + 370 + 435 = 1030 ml

1030ml = 1.03 l

Help!

Determine the perimeter of the triangle below.

Answers

Answer: D

add all measurements

9x + 7x + 3 + 3x - 9

combine like terms

19x - 6

Mhanifa Plz help me with this thank you!

Answers

Answer:

D

Step-by-step explanation:

This is an example of the Pythagorean theorem.

In triangle BEH, the sum of the squares of the sides of the two smaller sides, BE and BH is equal to the longest side squared, EH.

What is the simple interest earned on an investment of $12,625 in mutual funds for 12 years at a rate of 4%

Answers

Answer:

Interest earned= $6,060

Step-by-step explanation:

Giving the following formula:

Principal (P)= $12,625

Interest (r)= 4%= 0.04

Period of time (t)= 12 years

To calculate the interest earned after twelve years, we need to use the following formula:

I= P*r*t

I= (12,625*0.04*12)

I= $6,060

Interest earned= $6,060

Plz Help! Ill give brainliest to the first correct answer!

How many solutions does the system of equations below have?
y = -9x - 2
y = -9x - 2

A. No solution
B. One solution
C. Infinitely many solutions

Answers

C infinite many solutions is the correct answer

Triangle abc and xyz are congruent ,/_A is one half the size of /_B,/_y is 90° ./_c and /_z each have a measure of 45°.What is the measure of /_ a?

Answers

Answer:

∠a = 45°

Step-by-step explanation:

We are told that △abc and △xyz are congruent.

Thus;

∠a = ∠x

∠b = ∠y

∠c = ∠z

We are given;

∠y = 90°

Thus, ∠b = 90°

Now,we are told that ∠a is one half the size of ∠b.

Thus; ∠a = ½ × ∠b

∠a = ½ × 90

∠a = 45°


︎︎
︎︎
︎︎
︎︎
︎︎
︎︎
︎︎
︎︎
︎︎
︎︎
︎︎
︎︎
︎︎

Answers

Answer:

layers 2 cubes in each layer 3 2x3=6

Step-by-step explanation:

Need help asap show your work

Answers

To find the volume we use an equation:

volume = length x width x height

Since this shape is a cube, you only need to know one side to find the volume since all of the sides are equal.

So all you need to find the volume is to multiply 4(1/2) which I am going to simplify to 4.5, is plug it into the equation.

volume = 4.5 x 4.5 x 4.5

Which will get you an answer of 91.125 inches cubed

[tex]91.125in^{3}[/tex]

Hope this helps :)

PLEASE HELP ME!!!!!!

Answers

I just did the answer and it gave me 6 hope this helps

98x24(100-2)x24 using the distributive property

Answers

Answer:

98 x 24 = 2352

2352 x 2400 = 5,644,800

2352 x (-48) = - 112,896

5,644,800 - 112,896 = 5,531,904

5,531,904 x 24 = 132,765,696

Step-by-step explanation:

Can someone answer this question please, and also show the work.

The question: x+5<6

Answers

Answer:

x<1 I believe.

Step-by-step explanation:

Subtract -5 from 5 and do the same with the other side making the other side 1. So you get left with the answer.

Classify the real number.
[tex] \sqrt{15} [/tex]

Answers

Answer:

Irrational

Step-by-step explanation:

Firstly,

According to rational and irrational,

[tex] \sqrt{15} \: is \: irrational[/tex]

Since,

Natural numbers, Whole Numbers and Integers all come under Rational number.

Hence,

[tex] \sqrt{15} [/tex]

Is an irrational number.

pls help pls help!!!!! ok ty

Answers

Answer:

D

Step-by-step explanation:

Indepedent values basically means the x-values

Also sorry for last answer

6) What is the mean (average) of this set of data: 3 4 6 7 10 15 19 21

Answers

Answer:

10.62

Step-by-step explanation:

Mean can be described as the average of a sum of numbers, it can be calculated by sum ing all the numbers together and then diving by the total

The mean of the set of numbers shown in the question above can be calculated as follows

3+4+6+7+10+15+19+21/8

= 85/8

= 10.62

Hence the mean is 10.62

I WILL GIVE YOU BRAINLIEST Which of the following lines are parallel to Y = 1/4X - 3? A. 2Y = 1/3X + 2 B. 4Y = 4X + 3 C. 3Y = 3/4X + 6

Answers

Answer:

3Y=3/4X +6

Step-by-step explanation:

3Y=3/4X +6 is parallel to Y=1/4X-3

can someone please help me?

Answers

Answer:

A

Step-by-step explanation:

Answer:

A) 18.75

Step-by-step explanation:

As I said in the comments,

The question is asking for volume, so -

50 x 1.5 x 0.25 = 18.75

Hope this helped :)

please help me out, thank you so much whoever does :)))

Answers

Answer:

6.5 cm is the answer

What an odd measurement

Answer:

6.5cm

Step-by-step explanation:

pythagoras theorem

h² = o² + a²

11.1² = o² + 9²

123.21 = o² + 81

123.21 - 81 = o²

42.21 = o²

o = 6.5cm

Help ASAP I’ll mark you as brainlister

Answers

Answer:

22π

Step-by-step explanation:

C = 2πR

C = 2π(11)

C = 22π cm

Together they swam a total of 175 laps. Swimmer B swam 25 more than twice as many laps as Swimmer A.

Answers

Answer:

75

Step-by-step explanation:

175= 25+2a

The number of laps that Swimmer A swam was 50 laps.

How to form mathematical expression from the given description?

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4. If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions.

Let we suppose that:

Swimmer A swam x lapsSwimmer B swam y laps.

Then, according to the given data, we have:

x + y = 175 laps

y = 25 + 2x (25 more than twice of laps of A is the number of laps of B).

Thus, we get a system of two equations as:

[tex]x + y = 175\\y = 25 + 2x\\[/tex]

From second equation, putting value of y in first equation, we get:

[tex]x + (25 + 2x) = 175\\3x + 25 = 175\\3x = 150\\\\x = \dfrac{150}{3} = 50 \: \rm laps[/tex]

As x is the number of laps Swimmer A swam, thus, the number of laps that Swimmer A swam was 50 laps.

Learn more about solving system of linear equations here:

https://brainly.com/question/13722693

what is equal to 6 ft 12 inches

Answers

Answer: 7 feet

Step-by-step explanation: :D

Can someone help me

Answers

Answer:

1/5 x (6 x 4) goes to less than 24 (ps I’m not sure sorry)

2 x 6 x 4 goes to great than 24

(4 x 6) x (3 - 2) goes to equal to 24

(6 x 4) divide 2 goes to less than 24

(6 x 8) - (6 x 4) goes to equal to 24

6 x (5 - 4) goes to less than 24

9 x 6 / 5 - 3 goes to greater than 24

5 x 1/5 x (6 x 4) goes to equal to 24

Answer:

the answers are in the picture because I wrote them on paper. Hope it helps!

I used a calculator on every problem so they should be correct

Other Questions
Please answer the image below What is the volume of this figure Please help me Which two molecules are produced over the course of the light and dark reactions of photosynthesis?glucosewatercarbon dioxidepyruvic acidoxygen Assume that the heights of men are normally distributed with a mean of "71.3" inches and a standard deviation of 2.1 inches. If 36 men are randomly selected, find the probability that they have a mean height greater than 72.3 inches. Round to four decimal places. Solve 3.18 x 16SLOVE IT!!!!! pls help!!The side of a regular pentagonal pyramid is 6 feet long. The slantheight of the is 7 feet long. What is the lateral area of the pyramid. Which man offered Americans a New Deal and was elected president in 1932? a. Herbert Hoover b. Franklin Delano Roosevelt c. Theodore Roosevelt d. Lyndon B. Johnson Please select the best answer from the choices provided A B C D PLEASE HELP WORTH 16 POINTS WILL REPORT LINKS Pls help Ill brainlest ASAP whats three times three On considre l'nonc suivant :150 garons et 250 filles sont inscrits au conservatoire. 20 % des garons et 30 % des filles sont pianistes. The starting numbers for x and y are already entered in a table below the blanks in the table represent the next two terms for each of the patterns the pattern for the X-Files is added to pattern for the y values it at 4 which graph represents the order pairs of first three terms of the pattern from the table? GUYS HELP PLEASE ASAP You are deciding between two jobs. Offer 1 is $40,000 and a raise of$4,000 per year. Offer 2 is $52,000 and a raise of $2,000 per year. In howmany years will both jobs pay you the same salary? What would the salarybe? Which offer should you choose if you plan on working for 10 years? Pls help ASAP!!! Was John Adam against political parties? Was Thomas Jefferson against political parties? Which astronauts were part of the first space mission to land on the moon?Select all that apply.Question 3 options:Yuri GagarinAlexei LeonovNeil ArmstrongBuzz AldrinMichael Collins Joshua and Crystal openedsavings accounts on the sameday, each with an initial depositof $100.00. After two months,Joshua's account shows abalance of $67.25 and Crystal'saccount shows a balance of$131.97. Which account balancechanged by the greatestamount? Why?I8Im stuck what is the answer? ()) There are two cubes. The first cube has a volume of 1,000 cubic units. The second cube is smaller than the first, with sides only half as long. What is the volume of the second cube? D) cubic units Submit British entrepreneur Richard Arkwright is credited with building the first PLEASE ANSWER ILL GIVE YOU BRAINLIEST Use a Pythagorean Triple to find x.