OBX Cart Rentals has created a website for customer access. They are trying to determine a reasonably secure number of available passwords. They have decided to allow upper case letters, lower case letters, digits (0 â 9), and the three special characters: $, ! ?. Find the number of possible 6 character passwords given each of the conditions (Note: you MUST simplify completely.)
a. The password must begin with a letter (either upper or lower case)
i. repetitions permitted
ii. repetitions not permitted
b. The password must begin with a letter and end with a special character ($, !, ?):
i. repetitions permitted
ii. repetitions not permitted

Answers

Answer 1

Answer:

A)

i) for repetitions

there will be : 52 * 65 * 65 * 65 * 65 * 65 = 60335112500 number of passwords

ii) for Non - repetitions

there will be : 52 * 64 * 63 * 62 * 61 * 60 =  47576954880

B)  

i) for repetitions

there will be : 52 * ( 65 )^4 * 3  =  2784697500

ii) for Non-repetitions

there will be : 52 * 63 * 62 * 61 * 60 * 3 = 2230169760

Step-by-step explanation:

Total Number of letters = 52

Number of upper case letters = 26

Number of lower case letters = 26

Number of digits ( 0 - 9 ) = 10

special characters = 3

password = 6 characters

Therefore the total number of choices = 52 + 3 + 10 = 65

A) The password must begin with a letter (either upper or lower case)

i) for repetitions

there will be : 52 * 65 * 65 * 65 * 65 * 65 = 60335112500 number of passwords

ii) for Non - repetitions

there will be : 52 * 64 * 63 * 62 * 61 * 60 =  47576954880

B)  The password must begin with a letter and end with a special character ($, !, ?):

i) for repetitions

there will be : 52 * ( 65 )^4 * 3  =  2784697500

ii) for Non-repetitions

there will be : 52 * 63 * 62 * 61 * 60 * 3 = 2230169760


Related Questions

HELP ME PLEASE
What is 50% of 36?

A. 9

B. 16

C. 18

D. 34

Answers

Answer:

18 C

Step-by-step explanation:

hope this helps!!! :]

Answer:18

Step-by-step explanation:

The use of performance materiality should:_____________.A. reduce the probability that the sum of immaterial and/or undetected misstatements in the financial statements is greater than materiality for the financial statements as a whole.B. increase the probability that the sum of immaterial and/or undetected misstatements in the financial statements is greater than materiality for the financial statements as a whole.C. reduce the probability that the sum of immaterial and/or undetected misstatements in the financial statements is less than materiality for the financial statements as a whole.D. increase the probability that the sum of immaterial and/or undetected misstatements in the financial statements is less than materiality for the financial statements

Answers

Answer:

C. reduce the probability that the sum of immaterial and/or undetected misstatements in the financial statements is less than materiality for the financial statements as a whole.

Step-by-step explanation:

This is the likely answer going by the relationship between the undetected misstatement and the materiality for the financial statements.

I WILL GIVE BRAINLIEST! ALSO KEEP AWARE!

Answers

Answer:

Step-by-step explanation:

An equation y = kx represent a proportional relation and k = [tex]\frac{y}{x}[/tex]

⊕ Yes, the constant of proportionality is 3.5

The ratio of boys and girls in Mrs specks s class is 2 of 3 There is 18 girls what is the total number of students in Mrs.specks class HELP PLZ I WILL GIVE YOU THE BBRAINLYEST

Answers

Answer: 30 students in total

Step-by-step explanation: 2x+ 3x is 5x right. The 18 girls are the 3x. That means the 6 people is 1x. If there are 5 x people in total that means that there are 30 students

A license plate is to consist of digits followed by uppercase letters. Determine the number of different license plates possible if the first and second digits must beâ odd, and repetition is not permitted.A. 71, 610, 739, 200,000 B. 795, 674, 880,000 C. 7, 894, 720 D. 8, 840, 832,000

Answers

Answer:

D. 8, 840, 832,000

Step-by-step explanation:

The computation of the number of license plates possible is shown below:

Here the first position could be taken by any of the five odd numbers

The second position could be taken by any of the 4 odd numbers

The third position could be taken by the eight left numbers

The fourth position could be taken by another seven numbers

Als the first digit could be any of the 26 upper case letters and so on

So,

= 5 × 4 × 8 × 7 × 26 × 25 × 24 × 23 × 22

= 8,840,832,000

Therefore option D is correct

I need help please, i don’t know how to solve it?

Answers

Answer:

b. 22 square root of 58 is 7.6 multiplied to 3 is 22

Answer:

B 22

Step-by-step explanation:

PLEASEEEEEEEEEEE HELP MEH WILL GIVE BRAINLIST PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE HURRYYYYYYYYYY

Answers

Answer:

the awnser is b

.........

Am I correct on this ?

Answers

The answer is -7!!!!  can you help me too???? im stuck on one problum!!!

:D

Jay works at a sandwich shop. He needs to make 7 turkey sandwiches. Each sandwich will have 1/3 of a pound of turkey. How many pounds of turkey will Jay need to make the sandwiches? Remember what of means! And remember to press submit after you answer the question

Answers

Answer:

Jay will need 2 and 1/3 pounds of turkey.

Step-by-step explanation:

Since Jay uses 1/3 per sandwich and is making 7, multiply 7 by 1/3.

That gets you 7/3s

Convert it into a mixed number.

3 goes into 7 twice, with one third left over.

So, Jay needs 2 1/3.

hope this helped!

Answer:

approximately 2.3 pounds of turkey. Trust the BlueDragon

Step-by-step explanation:

7 times 1/3= 2.33333

Lillian is comparing the amount of water in her bathtub and her sink. Her bathtub is 0.65 full of water. Her sink is 0.9 full of water.




Which statement is true about comparing the amount of water Lillian has in her bathtub and sink? (MGSE4.NF.7)






There is more water in the bathtub because 65 > 9



These amounts cannot be compared because decimals can only be compared if they have the same-sized whole.



These amounts cannot be compared because decimals can only be compared if the have the same place value



There is more water in the sink because 65/100 < 90/100

Answers

Answer:

Step-by-step explanation:

There is more water in the bathtub because 65 > 9

These amounts cannot be compared because decimals can only be compared if they have the same-sized whole.

These amounts cannot be compared because decimals can only be compared if the have the same place value

There is more water in the sink because 65/100 < 90/100

Use the Distributive Property to simplify

1/7 x (56 - 1/4)

Answers

Answer:

7.96428571429

Step-by-step explanation:

Round you the nearest number.

The answer is 223/28 or 7 27/28 when Simplified

I just muiltpyied 1/7 with 56 and -1/4 .

Plz mark branliest

IQ test scores are standardized to produce a normal distribution with a mean of = 100 and a standard deviation of = 15. Find the proportion of the population for the following IQ score. For your answer, convert each proportion into a percentage whose value is computed to 2 decimal places. Sketch a distribution to help you visualize the problem. IQ score greater than 135

Answers

Answer:

0.01

Step-by-step explanation:

Using the z score formula

z = (x-μ)/σ,

where x is the raw score = 135

μ is the population mean = 100

σ is the population standard deviation = 15

z = 135 - 100/15

z = 2.33333

P-value from Z-Table:

P(x<135) = 0.99018

P(x>135) = 1 - P(x<135)

P(x > 135) = 1 - 0.99018

= 0.0098153

Approximately to 2 decimal places

= 0.01

Therefore, the proportion of the population for the following IQ score of 135 is 0.01

Cole is saving money at a constant rateSuppose he initially has $190 saved, and after 3 months, he has $265 saved. Which of these expresses the rate at which Cole is saving?

Answers

Answer:

His unit rate per month is 25 dollars

Step-by-step explanation:

Cole has saved 25 dollars per month. by subtracting 190 from 265 you are left with 75. when left with 75 you can divide by 3 for the the 3 months hes been saving his money. 75 divided by 3 is 25.

What is the area of a square with sides of length 9?
O A. 54 square units
B. 81 square units
O C. 18 square units
O D. 36 square units
SUE

Answers

B. 81 square units
Area for a square is length times width. In this case, both are 9 so 9 x 9 = 81

A restaurant bill is $75. You want to leave about a 20% tip. Which is a 20% tip?

Answers

75*.20= 15

The tip is $15

A T-Rex made 16 waffles for his friends for breakfast. 5 were blueberry waffles and the rest were chocolate chip waffles. How many chocolate chip waffles did he make?

Answers

Answer: 11 waffles were chocolate chip

Step-by-step explanation:

16-5=11 waffles were chocolate chip

Dale has written too many checks and his bank balance is –42.68. The bank will charge him an overdraft fee of $25. How much does he need to deposit so that his bank balance will be $50?

Answers

Answer:

$117.68

Step-by-step explanation:

You have to add them all together, because if he has a negative amount, he first needs to get that to 0. He then pays the overdraft fee, keeping him at 0. Lastly, he pays $50 to put it into his account. Good luck!

Yan has already finished Three-fifths of the 45 math problems he was assigned today. Each math problem took him 1Four-fifths of a minute to complete. If this pace continues, how much more time, to the nearest minute, will the rest of the problems take him to finish?

Answers

Answer:

49 Minutes

Step-by-step explanation:

1. 27 = 1 4/5 Minutes per 1 question.

2. Each question takes 108 seconds.

3. By this Logic, we can do 108 seconds x 27 questions to get-

4. 48.6 Minutes

5. And finally we round to the nearest minute so we get 49 minutes in total.

Answer:

32 minutes

Step-by-step explanation:

Yan has already finished Three-fifths of the 45 math problems he was assigned today. Each math problem took him 1Four-fifths of a minute to complete. If this pace continues, how much more time, to the nearest minute, will the rest of the problems take him to finish?

riddle #2
I am a five digit even number.
all of my digits are factor of 24.
4/5 of my digits are even.
The digit in my thousands place equals the perimeter of a 2×2 array.
The digits in my ten thousand places is twice the value of the digits in the hundreds place, but half the value of the digits in the thousands places.
The digit in my tens places equal the number of lines of symmetry in an isosceles triangle.​

Answers

Answer:

28416

Step-by-step explanation:

No digits can be repeated

"All my digits are factors of 24" This means that the possible digits are: 1, 2, 3, 4, 6, 8

"The digits in my thousands place equals the perimeter of a 2x2 array" That would be 8

"The digits in my ten thousand places is twice the value of the digits in the hundreds place, but half the value of the digits in the thousands place" That would be 4, which also means that the ten thousands place is 2

"The digits in my tens place equal the number of lines of symmetry in an isoceles triangle" There is only 1 lines of symmetry

This means that we have 2841(?)

Because this number is even and no digits can be repeated, the only possible digits from those available is 6

Therefore the number is 28416

PLZZ help me with this I will give brilliantis to whoever gets it right

Answers

Answer:

C

Step-by-step explanation:

Evaluate the given integral by making an appropriate change of variables. 3 x − 6y 8x − y dA, R where R is the parallelogram enclosed by the lines x − 6y

Answers

Answer:

Step-by-step explanation:

Hope this helps!

Please mark brainliest!

Oh if you need more information here is a more of an explanation

You get x and y in terms of u and v by setting u=x-2y and v=3x-y and then doing some systems of equations. You get the Jacobian by taking the partial derivatives of x and y with respect to u and v (using the equations x=(2v-u)/5 and y=(v-3u)/5) and then taking their determinate.

What is the area of the figure?

A. 36 cm2
B. 26 cm
C. 15 cm
D. 42 cm2

Answers

Put the figure??? I can’t see sorry :(

2. Determine whether quadrilateral EFGH can
be classified as a parallelogram.
Justify your reasoning.

Now consider quadrilateral EFGH shown

Answers

Answer:

3.4

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

there are two sets of parrallel lines.

A car salesperson earns a 5.8% commission on every car sold. How much commission will the salesperson earn on the sale of a $28,400 car? *

Answers

Answer:

1647.20

Step-by-step explanation:

You do .58 times 28,400. Then you move the decimal place over 1 place to the left. Because it is already 5.8%

1647.20 I believe!! Hope this helps!

if there are 362 men and 73 women what percentage of women are there

Answers

Answer:

16.78%

Step-by-step explanation:

Total = men+women

= 362+73 = 435

Percentage: 73/435 × 100

= 16.78%

Answer:

20%

Step-by-step explanation:

Use 362 as 100% since it is the output value and use 73 as a x value then put them into the equation 100%/x% = 362/73 then flip the equation x%/100% = 73/362

If P is the orthocenter of △ABC, AB = 13, BF = 9,and FC = 5.6, find each measure & the perimeter of triangle ABC.

Answers

Answer:

[tex]Perimeter = 38.6[/tex]

Step-by-step explanation:

Given

[tex]A\ B = 13[/tex]

[tex]B\ F = 9[/tex]

[tex]F\ C = 5.6[/tex]

Required

Calculate the perimeter of A B C

To calculate the perimeter of A B C, we sum up the sides of the triangle

i.e.

[tex]Perimeter = A B + B\ C + A\ C[/tex]

AB is given in the question already.

So, we need to calculate B F and F C

To solve for BF, we consider triangle B F C

Using Pythagoras Theorem, we have:

[tex]B\ C^2 = B\ F^2 + F\ C^2[/tex]

Substitute values for BF and FC;

[tex]B\ C^2 = 9^2 + 5.6^2[/tex]

[tex]B\ C^2 = 81 + 31.36[/tex]

[tex]B\ C^2 = 112.36[/tex]

[tex]B\ C^2= \sqrt{112.36[/tex]

[tex]B\ C = 10.6[/tex]

Next, we calculate A C.

To calculate A C, we need to calculate A F, considering triangle B F A

Using Pythagoras Theorem, we have:

[tex]A\ B^2 = B\ F^2 + A\ F^2[/tex]

Substitute values for B F and A B;

[tex]13^2 = 9^2 + A\ F^2[/tex]

[tex]169= 81 + A\ F^2[/tex]

[tex]A\ F^2 = 169 - 81[/tex]

[tex]A\ F^2 = 88[/tex]

[tex]A\ F = \sqrt{88[/tex]

[tex]A\ F = 9.4[/tex]

Since F lies on line A C:

[tex]A\ C = A\ F + F\ C[/tex]

[tex]A\ C = 9.4 + 5.6[/tex]

[tex]A\ C = 15.0[/tex]

Recall that:

[tex]Perimeter = A\ B + B\ C + A\ C[/tex]

[tex]Perimeter = 13 + 10.6 + 15.0[/tex]

[tex]Perimeter = 38.6[/tex]

Hence, the perimeter is 38.6

Given that P is the orthocenter of triangle ABC, applying the properties of an orthocenter of a triangle and the Pythagorean Theorem, each measure and the perimeter of △ABC are:

AB = 13BC = 10.6AC = 15Perimeter = 38.6

Recall:

An altitude is the line that connects the vertex of a triangle to the opposite side of which it is perpendicular to that side.Orthocenter is the point where all three altitudes intersect each other.

Given that P is the orthocenter of triangle ABC, where,

AB = 13BF = 9FC = 5.6

Perimeter of △ABC = AB + BC + AC

First, we need to find BC and AC.

△BFC is a right triangle, apply Pythagorean theorem to find BC:

[tex]BC = \sqrt{BF^2 + FC^2}[/tex]

Substitute

[tex]BC = \sqrt{9^2 + 5.6^2}\\\\\mathbf{BC = 10.6}[/tex]

△BFA is a right triangle, apply Pythagorean theorem to find FA:

[tex]FA = \sqrt{AB^2 - BF^2}[/tex]

Substitute

[tex]FA = \sqrt{13^2 - 9^2}\\\\\mathbf{FA = 9.4}[/tex]

AC = FA + FC

Substitute

AC = 9.4 + 5.6

AC = 15

Perimeter of △ABC = AB + BC + AC

Substitute

Perimeter of △ABC = 13 + 10.6 + 15

Perimeter of △ABC = 38.6 units

Therefore, given that P is the orthocenter of triangle ABC, applying the properties of an orthocenter of a triangle and the Pythagorean Theorem, each measure and the perimeter of △ABC are:

AB = 13BC = 10.6AC = 15Perimeter = 38.6

Learn more here:

https://brainly.com/question/2515607

14. (01.04)
On the graph of the equation 3x + 2y = 18, what is the value of the y-intercept?
-9
-6
6
9

Answers

Answer:

6

Step-by-step explanation:

U divide 18 by 3.

Answer:

9

Step-by-step explanation:

In slope-intercept form of linear equation y = mx + b , value of "b" is y-intercept.

Let solve 3x + 2y = 18 for "y"

2y = - 3x + 18

y = [tex]-\frac{3}{2}[/tex] x + 9 ⇒ 9 is y-intercept.

===========

There is another way to solve this kind of problems:

Coordinates of y-intercept are (0, y) .

3(0) + 2y = 18

2y = 18

y = 9

(0, 9)  

Witch expression converts 100 inches per minute to feet per minute

Answers

100 inches divided by 12 inches which equals 8.3333 feet per minute

The area of the rectangle flower bed shown is
20.4 square meters. How many meters of edging are needed to go around the flower bed?

Answers

Answer:

I think 5.4

Step-by-step explanation:

Take it and divide by the number of sides

The Perimeter of rectangle is 27.4 m

What is Area of rectangle?

The area of rectangle is product of its length to tis width.

So, Area of rectangle = length  x width

Given:

Area of the flower bed = 20.4 square meters.

length = 12 m

As a rectangle, its area be

A = l x w

20.4 = 12 w

w= 20.4/ 12

w= 1.7

Now, Perimeter of rectangle

= 2( l + w)

= 2( 12+ 1.7)

= 27.4 m

Hence, the Perimeter of rectangle is 27.4 m

Learn more about area of rectangle here:

https://brainly.com/question/13021557

#SPJ2

Jackson's bakery sold 291 cheesecakes in one day. How much money did Jackson's bakery make in one day from cheesecakes?

Answers

How much does one cheesecake cost? We are missing some valuable information.
Other Questions
Angie and Kenny play online video games. Angie buys 1 software package and 1month of gameplay. Kenny buys 1 software package and 2 months of game play. Each software package costs $30. If their total cost is $90, what is the cost of one month of gameplay? Compare the viscosity property of solid and liquid. What is 19,067 divided by 43 A soccer player passes the ball from a point that is 18 yards from the endline and 12 yards from the sideline. A teammate who is 42 yards from the same endline and 50 yards from the same sideline receives the pass. (See figure.) How long is the pass? (Round your answer to the nearest yard.) Why wouldn't we wear formal attire or use forks when eating soup? a) The motive doesn't fit the drive or the incentive. b) Our incentives regulate the drive for proper clothing and utensils. c) Our higher brain tells us it is inappropriate and incorrect symbolism. d) Our lower brain alerts the hypothalamus to tell us it is wrong. Which of these was an effect of the Battle of Medina? Spain sold Mexico to the United States. American filibusters gave up trying to take over Texas. Texan rebels defeated the Spanish army. It encouraged others to join the fight against the Spanish. What is the difference betweena mixer, and a blender (One difference only). Who is gonna answer this question? Free brainliest What was created to help divide up the work of the General Assembly? O The Department of LaborO The Committee SystemO The Executive AgenciesO The Appeals System Observe Record the appearance (colors,textures, etc.) of the reactants in the data table.What else can the copper react with? Alinehasaslopeof 1/3 anda y-intercept of 5What isitsequationin slope-intercept form? Write your answer using integers, proper fractions, and improper fractions in simplest form. Solve (t-3)^2=6. The arrow is at a height of 48ft after approximately ____s and after ___s What is the x and y intercept of the following functiony=1-x what are water molecules held together by A laboratory hydrogen generator collects the gas produced by bubbling it through water. The total pressure of the gas collected is 751 mmHg. The temperature is 34 C, at which water vapor pressure is 40.0 mmHg. Calculate the partial pressure of the hydrogen. Fix this sentence.Fix adjectives comparative/Superlative, Subject Verb- Agreement, Plurals.The most large whale ever reported were 106 foots long.How do you fix this sentence? Mr. Donald's age is 7 times of 1/5 of the total of students in this class plus 12 minus 1. Assuming this class has 25 students in total. What is Mr Donald age? (PLS HELP!! ILL GIVE BRAINLIEST AND EXTRA POINTS!! IT MAY SEEM LONG BUT ITS REALLY NOT)Read the passage:Major cities all over the world are changing color. The tall buildings that make up the landscape of these urban environments are becoming greener. People are trying to help the environment and have found that green roofs are one way to do so. By planting grass and small shrubbery on the tops of buildings, the environment is getting a helping hand.It is more expensive to build a green roof than it is to lay asphalt or shingles on a roof, but the trend is growing. The basic green roof requires a frame, waterproof membrane, gravel for drainage, fibrous material to retain moisture, soil for planting, and a barrier that prevents roots from penetrating the building.Green roofs started in Europe and are now gaining a strong foothold in the United States. The largest green roof in New York City is built on the roof of a processing and distribution facility. It is actually the biggest green roof in the country. Being in New York, it has faced snow, rain, freezing, and thawing. It has survived it all.The city of Chicago, Illinois, now has more green roofs than any other U.S. city. There are 7 million square feet of green roofs planted across the city. Toronto, Canada, is the first city in the western hemisphere to mandate green roofs on all new tall buildings. Green roofs are beneficial, not only to the environment, but also to the cities that build them. A recent study in Toronto suggested that if 75 percent of the flat roofs were greened, the city could save $37 million a year on storm water management and energy bills.What evidence does the author use to support the idea that urban environments are becoming greener?A) Being in New York, it has faced snow, rain, freezing, and thawing. It has survived it all.B) The largest green roof in New York City is built on the roof of a processing and distribution facility.C) It is more expensive to build a green roof than it is to lay asphalt or shingles.D) People are trying to help the environment and have found that green roofs are one way to do so.(Here is an image if needed) : 2. H(x) is a quadratic function and H(1) = 1, H(-2) = 16, and H(3) = 11. What is the value of H(-1)?A. 7B. 3C. -3D. 8E 5 Suppose babies born in a large hospital have a mean weight of 3831 grams, and a variance of 108,900. If 65 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would be less than 3882 grams? Round your answer to four decimal places On December 28, 2021, Tristar Communications sold 17 units of its new satellite uplink system to various customers for $25,000 each. The terms of each sale were 2/10, n/30. Tristar uses the gross method to account for sales discounts.In what year will income before tax be affected by discounts, assuming that all customers paid the net-of-discount amount on January 6, 2022. By how much in 2022 income before tax will be reduced by