each character in a password is either a digit [0-9] or lowercase letter [a-z]. how many valid passwords are there with the given restriction(s)? length is 14.

Answer:

C

Step-by-step explanation:

Hope that helps!

Answer:

C.

Step-by-step explanation:

Uneven steps,

good luck, i hope this helps :)

The value of the expression \(4\frac{1}{10}\times-4\times\frac{5}{12}\) is \(-6\frac{5}{6}\).

A mathematical statement expressed as a string of numbers and unknowable variables is known as a numerical expression. Statements can be used to create numerical expressions.

The given, expression is \(4\frac{1}{10}\times-4\times\frac{5}{12}\).

= (41/10) × (- 4) × (5/12).

= (41×-4×5)/(10×12).

= (-820/120).

= - 82/12.

= - 41/6.

= \(-6\frac{5}{6}\).

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There are four solutions for the equation with two absolute values: k = 4 · w + 8 / 3 or k = - 4 · w - 4 / 3 or k = - 4 · w - 4 / 3 or k = 4 · w + 6 / 3

In this question we have an algebraic equation formed by two absolute values. Absolute values are algebraic expressions with the following features:

Then, we can solve the expression by the following procedure:

|3 · k - 2| = 3 · |4 · w + 2|

k - 2 / 3 = |4 · w + 2| or - k + 2 / 3 = |4 · w + 2|

k - 2 / 3 = 4 · w + 2 or k - 2 / 3 = - 4 · w - 2 or - k + 2 / 3 = 4 · w + 2 or - k + 2 / 3 = - 4 · w - 2

Now we determine k as a function of variable w:

k = 4 · w + 8 / 3 or k = - 4 · w - 4 / 3 or k = - 4 · w - 4 / 3 or k = 4 · w + 6 / 3

Then, there are four solutions for the equation with two absolute values: k = 4 · w + 8 / 3 or k = - 4 · w - 4 / 3 or k = - 4 · w - 4 / 3 or k = 4 · w + 6 / 3

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Answer:

x=32

Step-by-step explanation:

5/8-3/8=2/8x =1/4

1/4x+4=12

12-4=8

1/4x=8

8/ 1/4 =32

x=32

Answer:

x = 32

Step-by-step explanation:

You just need to combine like terms and solve for x

5/8x - 3/8x = 12-4

2/8x = 8

1/4x = 8

x = 32

Answer:

763.65

Step-by-step explanation:

The digit 4 is in question here.

8 is greater than 5, so the 4 is rounded up to 5

763.65

45% of 78 = \(\frac{45}{100}*78 = 35.1\)

Hope that helps!

The 95% confidence interval for the TV show's audience proportion is (0.1404, 0.1596).

To calculate the margin of error and the 95% confidence interval for the clinical trials of the fertility method:

1. Calculate the proportion of boys in the sample: Divide the number of boys (125) by the total number of babies (156): 125/156 = 0.8013.

2. Calculate the standard error (SE) of the proportion: SE = sqrt[(p * (1 - p)) / n], where p is the proportion of boys and n is the sample size. SE = sqrt[(0.8013 * (1 - 0.8013)) / 156] ≈ 0.0255.

3. Calculate the margin of error (ME): ME = z * SE, where z is the z-score corresponding to the desired level of confidence. For a 95% confidence level, the z-score is approximately 1.96. ME = 1.96 * 0.0255 ≈ 0.0499.

4. Calculate the confidence interval (CI): The confidence interval is given by the formula CI = p ± ME. Substituting the values, the 95% confidence interval is approximately 0.8013 ± 0.0499, which gives us an interval of (0.7514, 0.8512).

Therefore, the margin of error is approximately 0.0499, and the 95% confidence interval for the clinical trials is (0.7514, 0.8512).

For the media research group reporting the TV show's audience proportion:

1. Calculate the standard error (SE): SE = sqrt[(p * (1 - p)) / n], where p is the proportion of the TV audience (0.15) and n is the sample size (6500). SE = sqrt[(0.15 * (1 - 0.15)) / 6500] ≈ 0.0049.

2. Calculate the margin of error (ME): The z-score for a 95% confidence level is approximately 1.96. ME = 1.96 * 0.0049 ≈ 0.0096.

3. Calculate the confidence interval (CI): The confidence interval is given by the formula CI = p ± ME. Substituting the values, the 95% confidence interval is approximately 0.15 ± 0.0096, which gives us an interval of (0.1404, 0.1596).

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Answer:

yes they are viruses i think never go to the website

Step-by-step explanation:

Answer:

15

Step-by-step explanation: simple math

Answer:

2/3

Step-by-step explanation:

6x = 3x+2

3x = 2

x = 2/3

Answer:

y= 34x- 2 +5 (C)

Step-by-step explanation:

The equation: y = 27x-54 +5

We are to determine an equivalent equation of the form y=avx -h+k from the options given.

From the above, av = two digit coefficient of x. Hence av is constant.

h and k are also constant.

Let's check out the option to find the equation that is in the form y=avx-h+k

a) y=-273x + 2+5

In this equation, the coefficient of x is a 3-digit number. The option is wrong.

b) y=-3x+2 +5

In this equation, the coefficient of x is a 1-digit number. The option is wrong.

c) y=34x -2 +5

In this equation, the coefficient of x is a 2-digit number.

av = 34, h= 2 and k = 5

This equation is in the form of y=avx -h+k

The option is correct.

d) y=273/x-2 +5

This equation is not in the form of y=avx -h+k

The option is wrong.

Answer:

c is correct for the first one

horizontal: 2 units right

vertical: 5 units up

stretch/compression: stretched by a factor of 3

reflection: not reflected

Step-by-step explanation:

leave a heart pls :)

Answer:

\(y = 3 {x}^{3} + 2 = = > y = \sqrt[3]{ \frac{(x - 2)}{3} } \)

_o_o_

\(y = 3 {x}^{2} - 2 = = > y = \frac{ + }{} \sqrt{ \frac{(x + 2)}{3} } \)

_o_o_

\(y = 2 {x}^{2} + 3 = = > y = \frac{ + }{} \sqrt{ \frac{(x - 3)}{2} } \)

_o_o_

\(y = 2 {x}^{3} - 3 = = > y = \sqrt[3]{ \frac{(x + 3)}{2} } \)

I hope I helped you^_^

Answer:

\(f(t) = 7.23( {1.0114}^{t} )\)

t = 0 represents January 1, 2014

(a)

\(f(6) = 7.23( {1.0114}^{6} ) = 7.739\)

The population of the world is expected to be about 7.739 billion people on January 1, 2020.

(b)

\(7.23( {1.0114}^{t} ) = 10\)

\(t = about \: 28.61 \: years\)

The population of the world is expected to be 10 billion people in about 28.61 years after January 1, 2014 (sometime in August 2042).

The answer when simplified gives the expression as 11.

According to the BODMAS rule, the brackets have to be solved first followed by powers or roots (i.e. of), then Division, Multiplication, Addition, and at the end Subtraction. Solving any expression is considered correct only if the BODMAS rule or the PEMDAS rule is followed to solve it.

Given here the expression as -2+1²×2+5×12/3 -9=0+4×5-11

                                                                                = 11

Hence, The answer when simplified gives the expression as 11.

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Answer:

3/10

Step-by-step explanation:

Answer:

3/10

Step-by-step explanation:

Answer: Vera's starting salary at the company was $53600.

Step-by-step explanation:

We can start by using the following proportion:

(Current salary) / (Starting salary) = (Percent increase) / 100

So we can write:

67,000 / Starting salary = 125 / 100

To find the starting salary we can cross-multiply and divide:

67,000 = (125 * Starting salary) / 100

67,000 * 100 = 125 * Starting salary

67,000 * 100 = 125 * Starting salary

67,000,000 = 125 * Starting salary

Starting salary = 67,000,000 / 125

- C

Answer:

1st one is, Left

2nd one is, 3

3rd one is, Up

4th one is, 2

Step-by-step explanation:

The pre-image moved horizontally  

✔ left

.

The pre-image moved horizontally  

✔ 3

units.

The pre-image moved vertically  

✔ up

.

The pre-image moved vertically  

✔ 2

units.

Left 3,

3rd one is up.

4th one is 2.

You're Welcome!

Answer:

B. 7−10; 11−14; 15−18; 19−22

Step-by-step explanation:

The computation shows that the time will be 11:05 am.

The friends entered the amusement park at 10:05 AM, the wait time it took 35 minutes to ride the FLIP-A-Trip and it took 23 minutes to ride the Slippery Slope.

Therefore, the time will be:

= 10.05 + 35 + 25

= 10:05 + 60 minutes

= 10:05 + 1

= 11:05

.It should be noted that 60 minutes= 1 hour. Therefore, you'll add 1 hour to the original time.

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Answer:

-1/4x-2

Step-by-step explanation:

Let's combine the like terms!

2 1/2 is equal to 5/2, so we can express the expression like this

(5/2x-11/4x)+(-7+5)

If we solve the first parentheses, we get 10/4x-11/4x=-1/4x

The second parentheses are obviously -2

Therefore, the answer is -1/4x-2.

Feel free to tell me if I did anything wrong! :)

No, the sample standard deviation of differences (sd) is not equal to the difference of the sample standard deviations (s1 - s2).

The sample standard deviation of differences is a measure of the dispersion or spread of the differences between two sets of data. It is calculated by taking the square root of the average of the squared differences between each paired observation. On the other hand, s1 and s2 represent the individual sample standard deviations of two separate data sets. Simply subtracting these values (s1 - s2) does not give you the correct measure of the dispersion of the differences between the two sets of data.

The sample standard deviation of differences (sd) cannot be obtained by merely subtracting the sample standard deviations of the individual data sets (s1 - s2). Instead, the proper method for calculating the sample standard deviation of differences should be used.

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The ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.

Given the scale factor of two similar polygons, we need to find the ratio of their perimeters and the ratios of their areas,

To find the ratio of the perimeters of two similar polygons, we can simply write the scale factor as it is because the ratio of the perimeter is equal to the ration of the corresponding lengths.

1) So, perimeter = 3:1

The ratio of areas between two similar polygons is equal to the square of the scale factor.

Since the scale factor is 3:1, the ratio of their areas is:

(Ratio of areas) = (Scale factor)² = 9/1 = 9:1

Similarly,

2) Perimeter = 7:4

Area = 49/16

Hence the ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.

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Answer:

a. 1.5

b 1.6 or 1.7

c. 90

Step-by-step explanation:

a. the initial height is 1.5 m (x=0)

b. the maximum height occurs at x = 20, probably 1.6 or 1.7 m

c. the arrows reaches 90 m when it lands (y=0)

hope this helps.

All of them could be a sign if over the course of time, but if it is all short term D

Answer: D

Step-by-step explanation:

The investment will double in nine years at an interest rate of approximately 8.09% compounded annually.

To find the value of the (P/A,8%,145) factor, we can use the general formula for the present worth of an annuity:

(P/A, i%, n) = (1 - (1 + i)^(-n)) / i

Substituting the values given:

i = 8%

n = 145

(P/A,8%,145) = (1 - (1 + 0.08)^(-145)) / 0.08

Using a financial calculator or spreadsheet software, we can calculate the value of (P/A,8%,145) as follows:

(P/A,8%,145) ≈ 43.7276 (rounded to four decimal places)

Therefore, the correct choice for the value of (P/A,8%,145) is:

C. (P/A,8%,145) = (P/A,8%,100)(P/A,8%,45) ≈ 43.7276 (rounded to four decimal places)

Regarding the second question, to find the interest rate at which an investment will double in nine years, we can use the future worth factor formula:

(F/P, i%, n) = (1 + i)^n

We want the investment to double, so we have:

(1 + i)^9 = 2

Taking the ninth root of both sides:

1 + i = 2^(1/9)

Solving for i:

i ≈ 0.0809 or 8.09% (rounded to two decimal places)

Therefore, the investment will double in nine years at an interest rate of approximately 8.09% compounded annually.

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The following are the zeros for the function h (x) = x2 + 3x - 8: - x= -4 and x=2.

Given a collection of inputs X (domain) and a set of potential outputs Y (codomain), a function is more technically defined as a set of ordered pairings (x,y) where xX and yY with the caveat that there can only be one ordered pair with the same value of x. The function notation f:XY can be used to express that f is a function from X to Y.

The function's zero is a value of x that makes it equal to zero. In other words, the equation f(x) = 0 leads to a zero.

By putting h(x) equal to zero and figuring out x, we may determine the zeroes for the function h(x) = x2 + 3x - 8.

h(x) = x² + 3x - 8 = 0

We may factor the left side of the equation to find x:

x² + 3x - 8 = (x-2)(x+4) = 0

We set each factor to zero and solve for x to discover the zeroes:

x-2 = 0 or x+4 = 0

x = 2 or x = -4

Consequently, the function's zeros are x = 2 and x = -4.

So, A is the right response. x = -4 and x = 2

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The complete question is

What are the zeros of the function h (x) = x² + 3x - 8?

A. x = -4 and x = -2

B. x= -8 and x = 2

C. x = -2 and x = 8

D. x = 2 and x = 8

The predicted number of adults in Oak City whose main source of news is newspapers or the radio is 85

To predict the number of adults in Oak City whose main source of news is newspapers or the radio, we need to add the number of adults who answered "Newspapers" to the number of adults who answered "Radio".

According to the sample data

Number of adults who answered "Newspapers": 64

Number of adults who answered "Radio": 21

Therefore, the predicted number of adults in Oak City whose main source of news is newspapers or the radio we have to use the addition

64 + 21 = 85

Rounding this answer to the nearest whole number, we get

85 ≈ 85

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The given question is incomplete, the complete question is:

There are 44,000 adults living in Oak City. In examining attitudes toward the news, a research group asked a random sample of Oak City adults "What is your main source of news?" The results are shown below. Main Source of News Newspapers Number of Adults 64 Internet 80 Television 126 Radio 21 Other 40 Based on the sample, predict the number of adults in Oak City whose main source of news is newspapers or the radio. Round your answer to the nearest whole number.

Answer:

\(80^{\circ} C\)

Step-by-step explanation:

You are making rusks and have to dry them overnight at a temperature of 176° F.

The given temperature is in Fahrenheit. We need to convert it into °C.

The relation between Fahrenheit and  °C is given by :

\(C=\dfrac{5}{9}(F-32)\)

Put F = 176

So,

\(C=\dfrac{5}{9}(176-32)\\\\C=\dfrac{5}{9}\times 144\\\\C=80^{\circ} C\)

So, the temperature is equal to \(80^{\circ} C\).

Answer: 20

Step-by-step explanation: