Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to flip the coin in order to obtain a 95% confidence interval of width of at most .18 for the probability of flipping a head

Answer:

Gregg employed 12 cleaners and 6 cleaning supervisors.

Step-by-step explanation:

Set up a system of equations where c is the number of cleaners and s is the number of cleaning supervisors:

c + s = 18

14c + 19s = 282

Solve by substitution by solving for c in the first equation:

c + s = 18

c = 18 - s

Then, plug in 18 - s as c into the second equation:

14c + 19s = 282

14(18 - s) + 19s = 282

Solve for s:

252 - 14s + 19s = 282

252 + 5s = 282

5s = 30

s = 6

Then, plug in 6 as s into the first equation:

c + s = 18

c + 6 = 18

c = 12

So, Gregg employed 12 cleaners and 6 cleaning supervisors.

Answer:

I think it would be A

Step-by-step explanation:

Answer:     D

Step-by-step explanation:

Use calculator as putting numbers

8+42+30+64+28+4=176

Answer:

I believe that A. pie chart, is the correct answer.

Step-by-step explanation:

This is because, a pie chart is a graph that shows the percentages of different things as they relate to a whole.

A pie chart would represent this scenario best because it would have different sections for each task, as well as the amount of employees that preform each task. Together, each task would result in the whole amount of employers.

This is why this graph would be the most appropriate.

Hope this helps! :)

Answer:

A. pie chart

Step-by-step explanation:

Did it on edge 2021

Answer:

(29.14 ; 30.06)

Step-by-step explanation:

Given that'

Sample size (n) = 57

Mean (m) = 29.6

Population standard deviation (σ) = 2.7

Confidence interval = 80%

= (1 - 0.8) / 2 = 0.1

Mean ± z * σ/√n

Using the Z probability calculator : Z0. 1 = 1.28

Hence,

29.6 ± 1.28 * (2.7 / √57)

29.6 - (1.28 * 0.3576237) ; 29.6 + (1.28 * 0.3576237)

29.142241664 ; 30.057758336

(29.14 ; 30.06)

Answer:

25 two point shots

25 three point shots

2x+3y<100 is that the one missing the sign?

Step-by-step explanation:

25*2=50

25*3= 75

50+75= 125

2x+3y has to be over 100 points

so 2x+3y<100

Answer:

302

Step-by-step explanation:

Tn=a+(n-1)d

38=8+[6-1)d

38-8=5d

30/5=d

6=d

Tn=a+(n-1)d

8+(50-1)6

=8+(49)6

302

Answer:

Following are the solution to the given question:

Step-by-step explanation:

In question a:

[tex]\to 16= 4^2[/tex]  is a perfect square.

[tex]\to 125 = 5^3[/tex] is not a perfect square

In question b:

[tex]\to 20 = 2 \times 2 \times 5[/tex], not a perfect square.

[tex]\to 25 = 5^2[/tex] is a perfect square .

[tex]\to 100 = 10^2[/tex] is a perfect square .

[tex]\to 125[/tex] is not a perfect square, its nearest perfect square is[tex]121 = 11^2 .[/tex]

[tex]\to 144 = 12^2[/tex]  is a perfect square .

[tex]\to 225 = 15^2[/tex]  is a perfect square .

[tex]\to 10,000 = 100^2[/tex] is a perfect square .

Answer:

2 3/4 or 2.75

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

6/2=3

Answer: -7/23

Step-by-step explanation:

this is the answers pls brainlist me

Answer:

30%

Step-by-step explanation:

Answer:30%

Step-by-step explanation:

Answer: 2nd one trust me

Step-by-step explanation:

1 foot = 12 inches:

1/72 = 12/x

Cross multiply:

1x = 72 * 12

x = 864 inches

Answer:

Writing a number in standard form simply means to express the number in its 'normal' form. Therefore, your example is written in standard form.

Answer: 4.56 x 10^-3

Step-by-step explanation: To convert scientific notation to standard form, all you have to do is move the decimal to the left or the right until you get a number that is more than 1 and less than 10, then count however many spaces you had to move and add that as your exponent over 10 (if you move left, the exponent is positive, and right is negative). Basically, this just lets you know that the actual number is that many times smaller or larger than the number in your answer.

Answer:

The answer is "[tex]\left[\begin{array}{c}7&-4&1&0\\\end{array}\right] , \left[\begin{array}{c}-6&2&0&1\\\end{array}\right][/tex]"

Step-by-step explanation:

Given value:

[tex]A= \left[\begin{array}{cccc}1&3&5&0\\0&1&4&-2\\\end{array}\right][/tex]

First you find the general Ax = 0 solution for the free variables.

[tex][A \ \ \ 0]= \left[\begin{array}{cccc}1&3&5&0\\0&1&4&-2\\\end{array}\right]\\\\ R_1\to R_1-3R_2\\\\= \left[\begin{array}{ccccc}1&0&-7&6&0\\0&1&4&-2&0\\\end{array}\right][/tex]

Its general solution is:

[tex]x_1 = 7x_3-6x_4,\ \ x_2=-4x_3+2x_4 \ \ with\ \ x_3, and \ x_4\ free. \ So,[/tex]

[tex]x=\left[\begin{array}{c}x_1&x_2&x_3&x_4\\\end{array}\right] = x_3\left[\begin{array}{c}7&-4&1&0\\\end{array}\right] + x_4\left[\begin{array}{c}-6&2&0&1\\\end{array}\right][/tex]

Null A is:  [tex]{\left[\begin{array}{c}7&-4&1&0\\\end{array}\right] , \left[\begin{array}{c}-6&2&0&1\\\end{array}\right] }[/tex]

Answer/Step-by-step explanation:

Given:

m<3 = 83°

The following are the angle measures of the seven angles including the justification of each answer.

m<1 = m<3 (corresponding angles are congruent)

m<1 = 83° (substitution)

m<2 + m<3 = 180° (same side consecutive interior angles are supplementary)

m<2 = 180° - m<3 (Subtraction property of equality)

m<2 = 180 - 83

m<2 = 97°

m<4 + m<3 = 180° (linear pair)

m<4 = 180 - m<3 (Subtraction property of equality)

m<4 = 180 - 83 (substitution)

m<4 = 97°

m<5 = m<3 (vertical angles are congruent)

m<5 = 83°

m<6 = 180° - m<3 (linear pair theorem)

m<6 = 180 - 83°

m<6 = 97°

m<7 = m<3 (alternate interior angles are congruent)

m<7 = 83°

m<8 = m<6 (corresponding angles are congruent)

m<8 = 97°

Answer:

below

Step-by-step explanation:

the 8 is basically x sooooo

f (8) = 8+11

f(x) = 19

Answer:

15 mins per dollar

Step-by-step explanation:

how many minutes are their in 9 hours?

540 minutes

so, we divise 540 to 36

this results to 15.

this means, you get 15mins per dollar

Answer:

A

Step-by-step explanation:

plz brainlest

Answer:

The pattern would produce main effects for both A and B, and an interaction

Step-by-step explanation:

When there is a two factor experiment having two types of level of factor A and the two level of factor B also the three of the treatment that are similar and the one is totally distinct from the others

So here the treatment pattern would be the pattern in which the important and main impact would be generated for both A and B and then an interaction

hence, the last option is correct

Answer:

(0, 0)

Reasoning:

Y-intercept means set x to 0 and solve, therefore;

[tex]y=1/3(0) -1y[/tex]

[tex]y=0-1y[/tex]

[tex]2y=0[/tex]

[tex]y=0/2=0[/tex]

Thus, the y-intercept is (0,0)

I hope this helps you and good luck!

Answer:

m a g i c  t h a t ' s  h o w

Answer:

0.28 is a decimal and 28/100 or 28% is the percentage for 7/25.

Step-by-step explanation:

i needhelp one more little crown plzz

25x4=100

7x4=28

28/100

0.28

28%

i barely remember how to do this

should b a decimal in between 7 and 00 i think idk

Answer:

[tex]\frac{2}{4}[/tex]

Step-by-step explanation:

Remember that in order to find the slope of two points you need to substitute the variables and subtract making sure you keep the 2's and the 1's together.

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

Plugin your numbers:

[tex]=\frac{7-5}{9-5}[/tex]

[tex]7-5=2[/tex]

[tex]9-5=4[/tex]

[tex]=\frac{2}{4}[/tex]

Hope this helps.

Answer:

I believe it's 192

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

its planted 2 inches below the ground and it grows 6 from the seed. it has to grow 2 inches to meet the surface of the dirt the remaining is above. therefore 6-2= your answer

Answer:

220

Step-by-step explanation:

Answer:

220 lbs

Step-by-step explanation:

I took the test.

Answer:

Binomial = 0.8724

Normal approximation = 0.873

Step-by-step explanation:

Given that :

Sample size (n) = 20

p = 0.6

q = 1 - p = 1 - 0.6 = 0.4

.using normal approximation :

Mean = np

Mean (m) = 20 * 0.6 = 12

Standard deviation (s) = √npq

s = √(20 * 0.6 * 0.4) = 2.1908902

Probability of 10 or more lines in use :

p(x ≥ 10)

Applying for correction:

p(x ≥ 10 - 0.5) = p(x ≥ 9.5)

Using the z formula :

Z = (x - m) / s

Z = (9.5 - 12) / 2.1908902

Z = - 1.141

p(Z > - 1.141) = 0.87307 (Z probability calculator)

p(Z > - 1.141) = 0.873

Using the binomial distribution :

P(x = x) = nCx * p^x * (1 - p)^(n-x)

p(x ≥ 10) = p(x = 10) + p(x = 11) +.... + p(x = 20)

Using calculator :

p(x ≥ 10) = 0.87247

= 0.873