Help ASAP!! In which pair do both decimals represent rational numbers

ANSWER:

The sample standard deviation is 29.3

The sample variance is 859.2

STEP-BY-STEP EXPLANATION:

We have the following data set:

To determine the sample standard deviation and the sample variance we must first calculate the mean of the data, like so:

Now we proceed to calculate the sample standard deviation and the sample variance:

A bit is a unit of information in computing that can have two values, typically represented as 0 and 1. A bit string of length 9 is a sequence of 9 digits, each of which is either 0 or 1.

(a) How many bit strings of length 9 or less are there?

To find the number of bit strings of length 9 or less, we can sum the number of bit strings of each length from 0 to 9.

For a bit string of length 0, there is only one possible string - the empty string.

For a bit string of length 1, there are two possible strings - 0 or 1.

For a bit string of length 2, there are four possible strings - 00, 01, 10, or 11.

For a bit string of length 3, there are eight possible strings - 000, 001, 010, 011, 100, 101, 110, or 111.

And so on, up to length 9.

That is:

1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256= 511.

There are 511 bit strings of length 9 or less.

(b) How many bit strings of length 9 or less are there, including the empty string of length zero?

To find the number of bit strings of length 9 or less, we can use the same method as above, but exclude the strings of length 10:

1 + 2 + 4 + 8 + 16 + 32 + 64 + 128 + 256= 511

There are 511 bit strings of length 9 or less, including empty string.

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Answer:

-50

Step-by-step explanation:

b-5 \(\geq -45\)

b-5 = -45 ( collect like terms)

b = -45 + -5

b = -45 -5  b = -50

To find the 90% confidence interval for a sample of 64 people with a mean of 36 and standard deviation of 3, you should simplify the following expression:

B. 36 + 1.645 * (3 / √64)

1. Calculate the standard error by dividing the standard deviation (3) by the square root of the sample size (64).
  Standard error = 3 / √64 = 3 / 8

2. Multiply the standard error by the Z-score for a 90% confidence interval (1.645).
  Margin of error = 1.645 * (3 / 8)

3. Add and subtract the margin of error from the sample mean (36) to get the confidence interval.
  Confidence interval = 36 ± 1.645 * (3 / 8)

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Answer: 0.95

Step-by-step explanation:

If 5% is the discount, then Adam pays 100%-5%=95% of the original price. 95% is equal to 0.95 in decimal form.

Answer:

2^(3/7)

Step-by-step explanation:

For these types of questions, what is inside the root is the numerator, and what is on top is the denominator.

3 is in the root, so it is the numerator

7 is outside the root, so it is the denominator

Therefore, The answer is 2^(3/7)

Answer:

4

Step-by-step explanation:

500 times 0.08/8%

It take 12.5 years for the deposit to double.

A quick and easy method of calculating the interest charge on a loan is called a Simple interest.

Given that;

$500 is deposited into an account that pays 8% and compounded annually.

Now, Let the time take for the deposit to double = T

So, We can formulate;

We know that;

⇒ Total amount = Principal amount + Simple interest

Here, Principal amount = $500

Total amount = $1,000

⇒ Simple interest = PRT / 100

⇒ Simple interest = 500 × 8 × T / 100

⇒ Simple interest = 40T

Substitute all the values, we get;

⇒ Total amount = Principal amount + Simple interest

⇒ 1,000 = 500 + 40T

⇒ 500 = 40T

⇒ T = 500 / 40

⇒ T = 12.5 years

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Answer:

Mean: 8 and MAD: 1.2

Step-by-step explanation:

Given a data with :

Mean = 20 ; mean absolute deviation (MAD) = 3.1

DATA with a low mean and variability Than The above from the options given :

The most appropriate option is : Mean: 8 and MAD: 1.2 ; because both values of the mean and mean absolute deviation are lesser than the value given.

Here is the completed table:

Time (x)    Distance from Surt (y)

0                           230

1                           185

2                           140

3                           95

4                                50

5                            5

To complete the table for John's drive, we need to substitute different values of x into the equation y = 230 - 45x to calculate the corresponding distances from Surt (y) at different times (x).

In this table, the time (x) represents the number of hours John has been driving, and the distance from Surt (y) represents the corresponding distance he has covered from Surt in miles.

For example, when John starts driving (x = 0), he is 230 miles away from Surt. As time progresses, the distance from Surt decreases by 45 miles for every hour of driving, according to the equation y = 230 - 45x.

By substituting different values of x into the equation, we can determine the distance from Surt at various points in John's drive.

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Answer:

y=5x+100

Step-by-step explanation:

Answer:

Its the last option:

4(x + 6)(x - 2)

Step-by-step explanation:

x^2  + 4x - 12 = (x - 2)(x + 6)

4x - 8= 4(x - 2)

Now x - 2 is common to both factors, so:

Common Denominator  = 4(x - 2)(x + 6)

or 4(x + 6)(x - 2).

(The order of the last 2 factors does not matter - the 2 expressions mean same thing.

If x and y are both integers, then the expression equivalent to ll x - y ll is,

ll y -x ll.

Here,

Given expression is,  ll x - y ll

What is modulus function?

The modulus function gives the magnitude or absolute value of a number irrespective of the number being positive or negative.

Now,

Let x = 2 and y = 1

Hence, ll x - y ll = ll 2 - 1 ll = 1

And, ll y - x ll = ll 1 - 2 ll = 1

So, Option A is true.

Hence, If x and y are both integers, then the expression equivalent to llx - y ll is, ll y -x ll.

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Answer: A. 0

Step-by-step explanation: To determine the number of solutions for the system of equations x - y = 7 and y = sqrt(3x + 3) - 2, we can substitute y in the first equation with the expression for y in the second equation, giving us x - (sqrt(3x + 3) - 2) = 7. Simplifying this equation, we get sqrt(3x + 3) = -x + 9.

Since the square root of a number is always non-negative, we can conclude that there are no solutions to this system of equations. Therefore, the answer is A. 0.

- Lizzy ˚ʚ♡ɞ˚

Answer: 200

Step-by-step explanation:

40% of y = 100

40/100 of y = 100

40y/100 = 100

40y = 100 multiplied by 100

40y/40 = 10000

y = 250.

40% of 2 multiplied by 250

40/100 of 500

40 multiplied by 5

answer = 200.

x=6 and y= -2

Solution Given:

3x+7y=4

y=-⅓x

I will choose substitution method to solve

substituting value of y in equation. 3x+7y=4,we get

3x+7*-⅓x=4

3x-7x/3=4

taking LCM

(3x*3-7x)/3=4

(9x-7x)/3=4

doing criss cross multiplication

2x=4*3

x=12/2=6

substituting value of x in equation

y=-⅓*6=-2

x=6 and y= -2

Answer:

5.6023 × 10^-5

Step-by-step explanation:

Let me know if you need an explanation.

Answer:

0.00005602

Step-by-step explanation:

0.00005602

(hope this helps can i plz have brainlist :D hehe)

Answer: 24 years

Step-by-step explanation:

Let Laurel's age be represented by x.

Since Maye is 28 years and he is 12 years older than 2/3 of Laurel's age, this can be represented in an equation as:

(2/3 × x) + 12 = 28.

2x/3 = 28 - 12

2x/3 = 16

Cross multiply

2x = 16 × 3

2x = 48

Divide by 2

x = 48/2

x = 24

Therefore, Laura is 24 years

Answer:

$21.00

Step 1- Solve 40% of $15.00

=$6.00

Step 2- Add the 40% to the discount amount

=$6.00+$15.00=$21.00

Answer:

hi

Step-by-step explanation:

area of square is a²

14²=196 m

haveca nice day

Answer:

The other number is 4/3

Step-by-step explanation:

Let the unknown number be x

Translate the equation :

\( - \frac{4}{3} \times x = - \frac{16}{9} \\ - \frac{4}{3} x = - \frac{16}{9} \\ \)

Cross multiply

\( - 4x \times 9 = 3 \times - 16 \\ - 36x = - 48\)

Divide both sides by -36

\( \frac{ - 36x}{ - 36} = \frac{ - 48}{ - 36x} \\ x = \frac{4}{3} \)

Answer:

Step-by-step explanation:

55x5(40-4+2)

55x5(36+2)

55x5(38)

275(38)

10450

Just remember:

- Group (exponents or parentheses)

- Multiply or divide (right to left)

- Add or subtract (right to left)

In the multi-armed bandit problem, there are a number of slot machines (arms) each with an unknown probability distribution of rewards.

The task is to maximize the total reward over a number of trials, where in each trial, an arm is selected and a reward is received.

In this specific problem, there are two arms, and the rewards for each arm follow a normal distribution with different means. The explore-then-commit and UCB algorithms are used to choose which arm to select in each trial.

The explore-then-commit algorithm chooses an arm randomly for an initial set of trials and then chooses the arm with the highest average reward for the remaining trials.

The UCB algorithm chooses the arm with the highest upper confidence bound, which takes into account both the average reward and the uncertainty in that estimate.

The problem asks to simulate the algorithms for 2000 rounds and calculate the average pseudoregret, which is the difference between the total reward obtained and the reward that would have been obtained if the best arm had been chosen every time.

The problem also asks to plot a histogram of the rewards obtained for each algorithm and compare the distributions. The differences between the distributions can be justified based on the different exploration-exploitation trade-offs made by each algorithm.

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The minimum light radius d for the lanterns to light the whole street is the maximum distance between any two lanterns.

The minimum light radius d needed for the lanterns to light the whole street is the maximum distance between any two lanterns. To find this, first we need to calculate the distance between each pair of lanterns. This can be done by subtracting the coordinate of the first lantern from the coordinate of the second lantern. After calculating the distances between each pair of lanterns, we need to find the maximum distance of these. This maximum distance is the minimum light radius d needed to light the whole street. Thus, we can conclude that the minimum light radius d should be equal to the maximum distance between any two lanterns.

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Answer: 30

Step-by-step explanation:

Answer:

2i - (-3 + i)

Step-by-step explanation:

I think this is it. Sorry if it's wrong

Answer:

7 -3i

Step-by-step explanation:

Simplify by combining the real and imaginary parts of each expression

Lakeside Olds should expect to have approximately 3 automobiles lined up at opening time on a typical day based on the probability distribution provided.

To find the expected number of automobiles lined up at the Lakeside Olds dealer at opening time, we use the concept of expected value. The expected value is the average value we would expect to see if we repeated the experiment many times. In this case, the experiment is the number of automobiles lined up at the dealer at opening time.

We are given the probability distribution for the number of automobiles, which tells us the probability of each possible outcome. We use these probabilities to calculate the expected value as the weighted average of all possible outcomes.

Expected number of automobiles = (1 x 0.05) + (2 x 0.30) + (3 x 0.40) + (4 x 0.25)

= 0.05 + 0.60 + 1.20 + 1.00

= 2.8

≈ 3

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The given question is incomplete, the complete question is:

The probability distribution for the number of automobiles lined up at a Lakeside Olds dealer at opening time (7:30 a.m.) for service is:

how many automobiles should Lakeside Olds expect to be lined up at opening time?

Answer:

a) Sinusoidal functions are y = a sin [b(x-h)] + k    (or)                                        

y = a cos [b(x-h)] + k

Where a is amplitude a= (max-min)/2=(16-2)/2=7

period p= 2π/b

            b=2π/30

            Horizontal transformation to 10 units right h=10

            k= (max+min)/2=(16+2)/2=9

h = 7 cos [π/15(t-10)]+ 9

b) t=10min=600 sec

substitue in the above equation

h=5.5m

The "count to infinity" problem in distance vector routing occurs when a routing loop arises due to a node receiving updates from its neighbor nodes that advertise new routes.

When the node that receives updates from its neighbors realizes that a new route is available, it adds the cost of that route to its existing distance vector table, and then broadcasts the updated table to its neighbors.

However, if a route has been lost, then the node that originally advertised that route will not be aware of this change, and will continue to advertise the lost route to its neighbors.

If the receiving node updates its distance vector table with the advertised lost route, then it will have a larger number in its distance vector table, which will lead to a longer path being chosen.

This process can continue indefinitely, resulting in a count to infinity situation where nodes advertise increasingly longer paths, and the network becomes unstable. To prevent this, several techniques have been developed, such as split horizon, poison reverse, and route holddown.

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Answer:"if you subtract 14 from my number and multiply the difference by -4, the result is -80." What is Sara's number?​. 2. See answers.

2 answers

·

0 votes:

Answer:6Step-by-step explanation:-80/-4=20+14=6

Step-by-step explanation: