Electricity bills in a certain city have mean $ 114.28. Assume the bills are normally
distributed with standard deviation $ 19.35. Find the value that separates the lower
70% of the bills from the rest.
Write only a number as your answer. Round to two decimal places (for example:
42.81). Do not write any units.

Answers

Answer 1

Answer:

B

Step-by-step explanation:


Related Questions

A bag contains 45 dyed eggs: 15 yellow, 12 green, and 18 red. What is the probability of selecting a green or red egg.

Answers

Answer:

it's 30/45

Step-by-step explanation:

because there are 12 green and 18 red which equal 30. Then there are 45 eggs in total. So 30/45

Probability of selecting a green or red egg is equals to [tex]\frac{30}{45}[/tex].

What is probability?

" Probability is defined as ratio of number of favourable outcomes to the total number of outcomes."

Formula used

Probability [tex]= \frac{Number of favourable outcomes}{Total number of outcomes}[/tex]

According to the question,

Given,

Total number of dyed eggs [tex]= 45[/tex] dyed eggs

Number of yellow eggs [tex]= 15[/tex]

Number of green eggs [tex]= 12[/tex]

Number of red eggs [tex]= 18[/tex]

Substitute the value in the formula to get the probability of each required colour egg,

Probability of green egg [tex]P(G)= \frac{12}{45}[/tex]

Probability of red egg [tex]P(R)= \frac{18}{45}[/tex]

Both are independent therefore,

P( G ∩ R) [tex]=0[/tex]

Probability of selecting a green or red egg [tex]= P(G) + P(R)[/tex]

                                                                         [tex]= \frac{12}{45} + \frac{18}{45}\\\\= \frac{30}{45}[/tex]

Hence, probability of selecting a green or red egg is equals to [tex]\frac{30}{45}[/tex].

Learn more about probability here

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Please I need help !!!

Answers

Answer:

Step-by-step explanation:

4 and 6

A café records how people take their coffee. Altogether 71 take milk and 36 take sugar. 21 take both and 24 take neither.
Draw a Venn Diagram showing this information.





How many people were in the survey?

Answers

152 people where in the survey ( might be wrong if I am, I’m sorry )

Find the length of the third side.If necessary,write in simplest radical form.

Answers

Answer:

1  2

Step-by-step explanation:

Peyton is going to invest $9,700 and leave it in an account for 16 years. Assuming the interest is compounded continuously, what interest rate, to the nearest tenth of a percent, would be required in order for Peyton to end up with $14,100?

Answers

Answer: r ≈ 2.3%

Step-by-step explanation:

Plzzzzz help

PART B
10 benches mateso or 10
What is the most number
seats available to the place

Answers

Answer:

100

Step-by-step explanation:

I think that if its 10 benches and 10 rows then there are 100 seats available.

10 • 10 = 100

in 2019 a large pizza cost $15.50. Today, a large pizza costs $20. What is the percent increase? Round to the nearest whole percent.

Answers

The percent increase went up 78 percent

Please could someone work this out

Answers

1. 448000 cm^3

2. 56 minutes

:D

a map has a scale of 1m represents 2 km. write this scale as a ratio in its simplest form

Answers

Answer:

Step-by-step explanation:

First, find yourself a map. Then, using two points, find both the distance on the map and the true distance. Next, you divide the true distance by the measured map distance, and find your scale. Last, you need to place that ratio onto your map.

1m / 2km = 1m / 2000m = 1 / 2000

What is the greatest angle measure in the diagram?

95o
105o
119o
180o

Answers

Answer:

180

Step-by-step explanation:

I think so but not sure.

Answer:

119

Step-by-step explanation:

NEED HELP ASAP FREE BRAINLIST

Answers

It would be A 50cm !

Answer:

yay free brainlest

Step-by-step explanation:

how much higher is 8% than 6%

Answers

Answer:

there is a 0.02 or 2% difference

Answer:

8% is 2% more than 6%

Step-by-step explanation:

Let's say the total is 100.

8% of 100 is 8.

6% of 100 is 6.

8 - 6 is 2.

2 is 2% of 100.

find the slope of the line passing through the points (8,2) and (8,-5)

Answers

Step-by-step explanation:

m=y-y¹/x-x¹

=-5-2/8-8

=-7/1

=-7

Answer:

slope 0

Step-by-step explanation:

-5-2/8-8

-7/0

x=0

horizontal line

Which units should be used to measure the mass of a slice of bread?

Answers

ounces and pounds are a unit of weight
The unit that should be used to measure the mass of a slice of bread is grams( decide between milligrams and centigrams) or ounces ( it really depends on what system of measurement you’re using).

Jason's business computers need servicing. The expression 81x + 108 represents a contractor's total charges in dollars for fixing the problem. The expression 103x + 64 represents an electronic store's total charges in dollars for the same work. In both expressions, x is the number of hours it took to complete the job.

Answers

Answer:

2 hours

Step-by-step explanation:

Given

[tex]Contractor: 81x + 108[/tex]

[tex]Electronic\ Store: 103x + 64[/tex]

Required

Determine the hours when the charges are the same

To do this, we simply equate both expressions:

[tex]Contractor = Electronic\ Store[/tex]

[tex]81x + 108 = 103x + 64[/tex]

Collect Like Terms

[tex]81x - 103x = 64 - 108[/tex]

[tex]-22x = -44[/tex]

Divide both sides by -22

[tex]x =2[/tex]

Question 1 of 10
Let log(b)A = 1; log(b)C = 3; log(b) D=4
What is the value of log(b) (a^5c^2/d^6)
A. 26
B. There isn't enough information to answer the question.
C. -13. D. 0

Answers

Answer:

Log₆ (A⁵C² / D⁶) = –13

Step-by-step explanation:

From the question given above,

Log₆ A = 1

Log₆ C = 3

Log₆ D = 4

Log₆ (A⁵C² / D⁶) =?

Recall:

Log MN / U = Log M + Log N – Log U

Therefore,

Log₆ (A⁵C² / D⁶) = Log₆ A⁵ + Log₆ C² – Log₆ D⁶

Recall:

Log Mⁿ = nLog M

Thus,

Log₆ A⁵ + Log₆ C² – Log₆ D⁶

= 5Log₆ A + 2Log₆ C – 6Log₆ D

Log₆ A = 1

Log₆ C = 3

Log₆ D = 4

= 5(1) + 2(3) – 6(4)

= 5 + 6 – 24

= 11 – 24

= –13

Therefore,

Log₆ (A⁵C² / D⁶) = –13

1. f(x) = x + 5, f(x) = 9

Answers

Answer:The answer is x =4

Step-by-step explanation:

Find the sum of the first 14 terms: 2 + 6 + 18 + 54 +

Answers

Step-by-step explanation:

First term (a) = 2

Common ratio (r) = 6 /2 = 3

Now

sum of first 14 terms (S14)

[tex] = \frac{a( {r}^{n} - 1) }{r \: - 1} \\ = \frac{2( {3}^{14} - 1) }{3 - 1} \\ = \frac{4782968}{2} \\ = 2391484[/tex]

Hope it will help :)❤

The pattern here is x3.
2+3+18+54+162+486+1458+4374+13122+39366+118098+354294+1062882+3188646=4782965

CAN SOMEONE HELPME I BEEN STUCK ON THIS FOR 3 HOURS​

Answers

Answer:

A,B,D

Step-by-step explanation:

Difference between an equation and an expression: equation has an equal sign while an expression does not. (C is also an inequality)

i am verry stuck pls help

Answers

Answer:

408.75

Step-by-step explanation:

14) What is the area of the polygon?
5 points
2 in.
4 in.
3 in
7 in.
3 in.
5 in
12
18
23
25

Answers

Answer:

23 inches

Step-by-step explanation:

so 9+8+6= 23 inches

What is the point-slope form of a line that has a slope of 3 and goes through the point (-2, 4)?

Answers

Answer:

y-4=3(x+2)

Step-by-step explanation:

Plug into point slope equation with slope m and point (x1,y1)

y-y1=m(x-x1)

y-4=3(x+2)

H e l p p l e a s e.......................................................................

Answers

Answer:

f=4x-148

62 degrees fahrenheit

Step-by-step explanation:

Chirps per minute=148

x=148

x=4f-148

100=4f-148

248=4f

62=f

If snowy tree crickets chirp at 100 chirps per minute, the temperature outside is 62 degrees fahrenheit.

f(x)=3^x-4x^2+6x and g(x)=5x^3+2x^2-3x. What is f(x)-g(x)

Answers

Answer:

-4x³ - 6x² + 9x

Step-by-step explanation:

Given functions:

f(x) = x³ - 4x² + 6x g(x) = 5x³ + 2x² - 3x

f(x) - g(x) is the difference of the above expressions:

f(x) - g(x)  = x³ - 4x² + 6x  - (5x³ + 2x² - 3x ) =                  ⇒ Substitutex³ - 4x² + 6x  - 5x³ - 2x² + 3x =                    ⇒ Open parenthesisx³(1 - 5) - x²(4 + 2) + x(6 + 3) =                      ⇒ Combine like terms-4x³ - 6x² + 9x                                              ⇒ Simplify

If point A is reflected across both axes, what are the coordinates of the reflected point?

Answers

Answer:

The answer is "(6,3)".

Step-by-step explanation:

In this question, the point is missing if the given point is (-6,-3) so, its solution can be defined as follows:

Throughout this question whenever we reverse the axis to the mirror at the point. The reflection of (-6,-3) is (6,3), which also is the correct value because it changes the coordinates, that's why (6,3) is the correct point.

Please help me it’s due tomorrow and I have four more I’ll make you branliest

Answers

Answer:6 √ 7

Step-by-step explanation:

This is the answer I hope this helps you

PLS HELP ME PLS I WILL GIVE BRAINLIEST

Answers

Answer:

It will be A

Step-by-step explanation:

M=140-100/5-3

m=40/2

m=20

Find the value for the missing side length. Round to the nearest tenth if necessary.

Answers

20 is adjacent to the angle. x is opposite. Therefore you want to use tangent because that is what you are given.
tan(72)=x/20
multiply the denominator:20•tan(72)=x/20•20
20•tan(72)
Answer=61.5
Rounded=62

Question and answer options in picture
Please help thank you :D .
Zoom in of needed ​

Answers

answer: D- 9.50. Explanation: 1/8 of 20 dollars is 2.5 so that’s how much he spent on lunch. 2/5 of 20 is 8 dollars so that’s how much he spent at the movies. So all together he spent $10.50 so you would subtract that from $20 to find out how much he has left which is 9.50. :)

The ratio of blue and green marbles is 5:6. If there are 40 blue marbles, how many green marbles are there?

Answers

Answer:

48

Step-by-step explanation:

40 divided by 5 is 8. so then you do 6x8 and get 48

hope this helps!

The number of green marbles based on the given ratio is 48.

What are the ratio and proportion?

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

Let's say the number of blue marbles is B and the number of green marbles is G.

The ratio of blue and green marbles is 5:6.

So,

B/G = 5/6

Since B = 40

40/G = 5/6

By cross multiplication,

G = 40(6)/5

G = 48

Hence "The number of green marbles based on the given ratio is 48".

For more information about ratio and proportion,

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Other Questions
Help me guys? Please Please help me on this! Wixis Cabinets makes custom wooden cabinets for high-end stereo systems from specialty woods. The company uses a job-order costing system. The capacity of the plant is determined by the capacity of its constraint, which is time on the automated bandsaw that makes finely beveled cuts in wood according to the preprogrammed specifications of each cabinet. The bandsaw can operate up to 181 hours per month. The estimated total manufacturing overhead cost at capacity is $14,480 per month. The company bases its predetermined overhead rate on capacity, so its predetermined overhead rate is $80 per hour of bandsaw use.The results of a recent months operations appear below:Sales $ 43,780Beginning inventories $ 0Ending inventories $ 0Direct materials $ 5,350Direct labor $ 8,820Manufacturing overhead incurred $ 14,300Selling and administrative expense $ 8,160Actual hours of bandsaw use 151Required: 1-a. Prepare an income statement that records the cost of unused capacity on the income statement as a period expense.1-b. How much of the cost of unused capacity can be shown on the income statement as a period expense? Which way does electricity flow? what is the product of (8-3a)(8-3a) PLs HELP ASAP thank youuuu no links!!!!! Please help asap....... what is -3(2m-5)=1/2(-12m+30) the average hair skin and nails have a pH level of five generally falling between 4.5 and 6 true or false PLEASE HEEEELP,WILL GIVE BRAINLIESTAlso can you explain how you got your answer How is economics related to the other social sciences? 4. Solve the system using substitution.x + 2y = -1y = -3x - 8A. (-3, 1)B. (-3,-1)C. (2,-2)D. (-3, -17) Help me plzzzzzzzzzZzzzzzzzzzZ Which piece of evidence explains the cause ofWilliam Shakespeare's initial popularity? Please answer this correctly without making mistakes I want ace expert and genius people to answer this correctly without making mistakes WILL MARK BRAINLIEST!!!!!!!Which choice names the two parts of Earth that make up the lithosphere?crust and outer part of the mantlemantle and outer coreinner core and mantleinner core and outer core Find the greatest common factor of these two expressions 18y^6w^2 and 27y^5 w^4 u^7 what does cunning mean helppppppppppppppppp Can someone that knows spanish please answers the few questions for me so i can finally go to sleep