Ebru is an entrepreneur. She plans to start 2 different very small businesses in the next year. Both businesses are independent of each other, and each business has a 50%, percent chance of being successful and a 50%, percent chance of failing.

Each business will make Ebru $200 if it succeeds or lose her $200 if it fails.

if X is a random variable that represents Ebru's profit from starting these 2 businesses, draw a graph to show the probability distribution for all possible values of X.

Answer:

The 90% confidence interval for the true mean natural gas bill for homes in the 19808 zip code area in February is between $292.48 and $331.32

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 21 - 1 = 20

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 20 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 1.7247

The margin of error is:

[tex]M = T\frac{s}{\sqrt{n}} = 1.7247\frac{51.60}{\sqrt{21}} = 19.42[/tex]

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 311.9 - 19.42 = $292.48

The upper end of the interval is the sample mean added to M. So it is 311.9 + 19.42 = $331.32

The 90% confidence interval for the true mean natural gas bill for homes in the 19808 zip code area in February is between $292.48 and $331.32

Answer:

0,0

Step-by-step explanation:

Answer:

17 units is the answer

Step-by-step explanation:

Points are (1,9) and (9,-6)

Pythagorean theorem can be written as,

[tex]d=\sqrt{(x_2-x_1)^2 + (y_2-y_1)^2} \\\\d=\sqrt{(9-1)^2 + (-6-9)^2}\\\\d=\sqrt{(8)^2+(15)^2} \\\\d=\sqrt{64+225} \\\\d=\sqrt{289} \\\\d=17[/tex]

∴ d = 17 units is the distance between 2 points.

Answer:

Step-by-step explanation:

volume= width X height X length

volume= 4/7 X 3/5 X 2/3

volume= 0.23

Answer:

show the image so i can answer

plz put the image  so i can see cus there are two types

Answer:

Yes??

Step-by-step explanation:

7+3x5+3x+1

7+15+3x+1

22+3x+1

3x+23

7+5x+10

5x+17

Yes, much difference

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hope it helps

sorry if i'm wrong, sum of the x's confused me

Answer:D

Step-by-step explanation:

Answer:

4 cm

Step-by-step explanation:

Perimeter = 18cm

θ = 2.5 radian

s = rθ, s = Arc length

Perimeter of Sector, P = arc length, s + 2r

Perimeter = rθ + 2r

r = Radius

18cm = r(2.5) + 2r

18cm = 2.5r + 2r

18cm = 4.5r

r = 18 /4.5

r = 4

Answer15 y-int. (sety=0) 5%-15 (set x=0) x=3. 13,0).

Step-by-step explanation:

Answer:

[tex]H)39.6[/tex]

Step-by-step explanation:

To get the mean, you have to add all the numbers, then divide the sum by the amount of individual numbers there are.

In this problem, we see that there are 5 different numbers. If we add all those numbers together, they will equal 198.

[tex]198[/tex] ÷ [tex]5 = 39.6[/tex]

Answer:

14

Step-by-step explanation:

35% of 40

= 35/100 × 40

= (35×4)/10

= 140/10

= 14

Answer:

since they are alternate angles(equal)

4x-10=58

4x=68

x=17

Answer:

option 4

Step-by-step explanation:

(4x - 10) and 58 are alternate angles and are congruent, then

4x - 10 = 58 ( add 10 to both sides )

4x = 68 ( divide both sides by 4 )

x = 17

Let x be the weight of the candy in pounds, then 0.9x is the weight of the milk chocolate in pounds

The weight of the caramels in the candy is 3 pounds, so

An equation that can be used find the total number of pounds of milk chocolate and caramels in the candy is

0.9x + 3 = x ⇒ x = 30

So there are 0.9(30) = 27 pounds of milk chocolate in the candy.

hope this helps

Answer:

21

Step-by-step explanation:

(g o f) (-3) = g ( f(-3) )

First, let's find f(-3):

f(x)=2x²+6x+9

f(-3)=2(-3²)+6(-3)+9

f(-3)=18-18+9

f(-3)=9

Now that we know the value of f(-3), we can sub this into g(f(-3)):

g ( f(-3) ) = g(9)

Find g(9):

g(9)=3x-6

g(9)=3(9)-6

g(9)=27-6

g(9)=21

Answer:

v= -71.3 there you go hope this helps

Answer:

No.

Step-by-step explanation:

Calculation: 2/4 + 3/4 - fraction calculator. Result: 5/4 = 1 1/4.

Answer:

510 miles, 204/3 = 68

68x7.5= 510

There u go :)

Answer:

(2/3,10/3)

(.667,3.333)

Step-by-step explanation:

y=5x,x+y=4

Answer:

Your answer is 8 dogs

Step-by-step explanation:÷

42 ÷ 5 = 8.4 = 8

I hope this helps

have a nice day/night

mark brainliest please :)

Answer:

$741.52 TRUSTTT

Step-by-step explanation:

Answer:

x + (tax percent out of 100)*x, which is 748.65.

Answer:

Solution in photo

Answer:

2

Step-by-step explanation:

Given

See attachment for chart

Required

Number of off days

To do this, we simply calculate the expected value of the chart.

This is calculated as:

[tex]E(x) = \sum x * f[/tex]

Where

x = days

f = chances

So, we have:

[tex]E(x) = 0* 0.3 + 1 *0.2 + 2 * 0.25 + 3 * 0.2 + 4 * 0.02 + 5 * 0.01 + 6 * 0.01 + 7 * 0.01[/tex]

[tex]E(x) = 1.56[/tex]

[tex]E(x) \approx 2[/tex]

Answer: Option D

Step-by-step explanation:

I got it right on Edmentum/Plato

Answer:

the answer is 72 inches

Step-by-step explanation:

a²+b²=c²

a²+900=6084

a²=5184

a=72

Answer:

it's a bit blurry but if I aint wrong it's the 2nd one that say 2/5

Answer:

2.5 kilograms of chocolate

Step-by-step explanation:

Answer:

b. x=20

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The question is asking which number is bigger than 19 and less than 25.

The only one that fits the criteria is B. 20.

As a reference, look at which way the "alligator mouth" is facing. That number is supposed to be bigger.

If x>y, then x is bigger because the alligator mouth is facing the x.