Round 27,850 to the nearest thousand.

Answer:

explain  15/256

Answer:

4.47

Step-by-step explanation:

What square  roots are having √20 in between them?...

√16 = 4                         √20 ≈ a number between 4 and 5         √25=5

║                                       ║                                                                ║

 16 is 4 away from  20                     25 is 5 away form 20

so √20 is closer to √16 (=4)  

so a better approximation is the one closer to 4

so is 4.47

Answer:

square root of 24.5 is 4.94974747, but a better approximation would be 5 and approximation of square root of 4.47 would be 2

Step-by-step explanation:

25 square rooted is 5, so square root of 24.5 is approximately the same. 4 squared is 2, which the square rooted of 4.47 would be approximately the same

Answer:

y=1/2x-4

Step-by-step explanation:

subtract 4x from the left side and the right side. It becomes:

-8y=-4x+32

divide -8 from both sides and it becomes:

y=1/2x-4

Answer:

77%

Step-by-step explanation:

462/600=x/100

46200=600x

46200/600=77

x=77

77%

Answer:

y = 21°

Step-by-step explanation:

both are parallel lines, and that means

16x - 23 = 10x + 1

16x - 10x = 23 + 1

6x = 24

x = 4

---------------------------

taking 16x - 23

16 (4) - 23 = 64 - 23 = 41

both angles value is = 41°

------------------------------------

62° + x = 180

x = 180 - 62 = 118°

----------------------------------

the sum of all the angles inside the triangle is equal to 180°

41° + 118° + y = 180°

y = 21°

Answer:D(2,1)

Step-by-step explanation:

Answer:

D. (2,1)

Step-by-step explanation:

Yes It is correct I took the test and got a 100%

Answer:the correct answer is b

Step-by-step explanation:

The conditions that must be met to use the normal approximation for the confidence level are np>5 and n(1-p)>5

Sampling Distribution: A sampling distribution is a probability distribution of a statistic that is obtained through repeated sampling of a specific population. It describes a range of possible outcomes for a statistic, such as the mean or mode of some variable, of a population.

Given that the sampling distribution of the population proportion is based on a binomial distribution.

The conditions that must be met to use the normal approximation for the confidence level are np>5 and n(1-p)>5

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Given:

The amount of money in Joel’s account is:

\(j(x)=25+3x\)

The amount of money in Kevin’s account is:

\(k(x)=15+2x\)

To find:

The function that correctly represents how much more money, in dollars, is in Joel’s account than in Kevin’s account x weeks after the start of the year.

Solution:

We need to find the difference between the function j(x) and function k(x).

\(j(x)-k(x)=(25+3x)-(15+2x)\)

\((j-k)(x)=25+3x-15-2x\)

\((j-k)(x)=(25-15)+(3x-2x)\)

\((j-k)(x)=10+x\)

Therefore, the correct option is D.

\(\text{Hi there! :)}\)

Answer:

\(\huge\boxed{x = -5}\)

\(-5x + 4 = 29\)

\(\text{Subtract 4 from both sides:}\)

\(-5x + 4 - 4 = 29 - 4\\\\-5x = 25\)

\(\text{Divide both sides by -5:}\)

\(-5x / (-5) = 25 / (-5)\\\\x = -5\)

Steps to solve:

-5x + 4 = 29

~Subtract 4 to both sides

-5x = 25

~Divide -5 to both sides

x = -5

Best of Luck!

Answer:

C.  \(f(x)=(x+1)^2-4\)

Step-by-step explanation:

A. the graph is a straight line with slope 1.  It goes up/down infinitely far so the range is all real numbers.  Not A!

B. The graph is a straight line with slope -4, so, like the function in A, the range is all real numbers.  Not B!

D. The graph is an absolute value function  y = |x|, reflected over the x-axis, shifted right 3 units, then shifted down 4 units.  So the graph starts witha "vee" shape opening up, becomes a vee opening down, then ultimately gets shifted down 4 units.  The range is all real numbers less than or equal to -4.

See the attached graphs.  image2 is the function in answer choice D.

Answer:

1/2 - 3/4x

Step-by-step explanation:

1. Convert the mixed number to an improper fraction

     2 1/4 = 9/4

2. Calculate the sum

      -1/8 + 9/4x + 5/8 -3x = 1/2 + 9/4x -3x

3. Calculate the difference

      -1/8 + 9/4x + 5/8 -3x = 1/2 - 3/4x

SOLUTION

    1/2 - 3/4x

To find the probability that someone who tests negative for opium use does not use opium, we need to use Bayes' theorem.

Let's assume that the prevalence of opium use in the population is 5%. This means that out of 100 people, 5 people use opium.

Now, let's say that the test for opium use has a sensitivity of 95% and a specificity of 98%. This means that out of 100 people who use opium, 95 will test positive, and out of 100 people who do not use opium, 98 will test negative.

Using Bayes' theorem, we can calculate the probability that someone who tests negative for opium use does not use opium as follows:

P(Not using opium | Negative test) = P(Negative test | Not using opium) * P(Not using opium) / P(Negative test)

P(Negative test | Not using opium) = 0.98 (specificity)
P(Not using opium) = 0.95 (complement of the prevalence)
P(Negative test) = P(Negative test | Not using opium) * P(Not using opium) + P(Negative test | Using opium) * P(Using opium)
P(Negative test | Using opium) = 1 - 0.95 = 0.05 (false negative rate)
P(Using opium) = 0.05 (prevalence)

P(Negative test) = 0.98 * 0.95 + 0.05 * 0.05 = 0.0935

P(Not using opium | Negative test) = 0.98 * 0.95 / 0.0935 ≈ 0.994

Therefore, the probability that someone who tests negative for opium use does not use opium is approximately 0.994, or 0.994 in decimal format rounded to three decimal places.
In this case, we want to find the probability of not using opium, given that someone tests negative.

Let's define the events as follows:
- A: Person does not use opium
- B: Person tests negative for opium

We want to find P(A|B), which is the probability of event A occurring given that event B has occurred. Using the conditional probability formula:

P(A|B) = P(A ∩ B) / P(B)

Unfortunately, without specific data on the probabilities of A, B, and A ∩ B (not using opium and testing negative), we cannot provide a numeric answer. However, if you have this information, you can simply plug the values into the formula and divide P(A ∩ B) by P(B) to obtain the probability in decimal format. Finally, round the result to three decimal places.

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Answer:

8 3/4 is a mixed number

Step-by-step explanation:

I don know how to explain

Answer: Then the angles of the image must be 3 times the size of the corresponding angles in the original triangle.

Answer: 6 are not enrolled.

Step-by-step explanation:

78 in total so you add 41+22+9 and you get 72 so you do 78-72 and you get 6.

Answer:

T (1,-8)

S (1,-10)

U (9,-8)

R (10,-9)

Step-by-step explanation:

-x=6+2y

2y=-x-6

y= -x/2 -3

1.1 The relationship between sampling distribution and confidence interval is that the sampling distribution helps us understand the distribution of sample statistics (such as the sample mean or proportion) when repeatedly sampling from a population.

The confidence interval, on the other hand, provides a range of values within which we can be confident that the true population parameter lies based on the sample data.

In other words, the sampling distribution gives us information about the variability and distribution of sample statistics, while the confidence interval uses this information to estimate the range of likely values for the population parameter.

1.2 To calculate the probability that the sample mean is between 9.0 and 11.0, we need to standardize the values using the z-score formula and then look up the corresponding probabilities from the standard normal distribution.

First, calculate the z-scores:

z1 = (9.0 - 10) / (3 / √40) = -1.8257

z2 = (11.0 - 10) / (3 / √40) = 1.8257

Next, look up the probabilities associated with these z-scores using a standard normal distribution table or a calculator. The probability that the sample mean is between 9.0 and 11.0 can be calculated as the difference between the two probabilities:

P(9.0 < x < 11.0) = P(z1 < Z < z2)

1.3 (a) To calculate the probability that the percentage of voters who support the candidate is between 40% and 45% in a sample of 200 voters, we can use the sampling distribution of sample proportions. Assuming the sample proportion follows a normal distribution, we can standardize the values using the z-score formula and then calculate the corresponding probabilities.

First, calculate the z-scores:

z1 = (0.40 - 0.40) / √[(0.40 * (1 - 0.40)) / 200] = 0

z2 = (0.45 - 0.40) / √[(0.40 * (1 - 0.40)) / 200]

Next, look up the probabilities associated with these z-scores using a standard normal distribution table or a calculator. The probability that the percentage of voters who support the candidate is between 40% and 45% can be calculated as the difference between the two probabilities:

P(40% < p < 45%) = P(z1 < Z < z2)

(b) To calculate the probability that the percentage of voters who support the candidate is more than 50%, we can again use the sampling distribution of sample proportions. We standardize the value using the z-score formula and calculate the corresponding probability.

Calculate the z-score:

z = (0.50 - 0.40) / √[(0.40 * (1 - 0.40)) / 200]

Look up the probability associated with this z-score using a standard normal distribution table or a calculator. The probability that the percentage of voters who support the candidate is more than 50% can be calculated as:

P(p > 50%) = P(Z > z)

1.4 To determine the 95% confidence interval for the true mean resistance, we can use the formula:

Confidence Interval = sample mean ± (critical value * standard error)

First, calculate the standard error:

Standard Error = population standard deviation / √(sample size)

              = 0.35 / √10

Next, find the critical value corresponding to a 95% confidence level from a t-distribution table with 9 degrees of freedom (n-1). The critical value for a 95% confidence level is approximately 2.

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The daily percent of increase in tourists from one month to the next is approximately 5.4% which is obtained through mathematical operations.

To calculate the daily percent of increase, we need to determine the difference in the number of tourists between the two months and divide it by the number of days in the second month. Then, we express this difference as a percentage.

In the given scenario, the increase in tourists from the first month to the second month is 6355 - 4500 = 1855. The number of days in the second month is 31. Dividing the increase by the number of days gives us

1855 / 31 = 59.8387.

To express this increase as a percentage, we multiply the result by 100, yielding 5983.87%. Rounding this to the nearest tenth of a percent gives us approximately 5983.9%.

Finally, to find the daily percent of increase, we divide the percentage by the number of days in the second month: 5983.9% / 31 = 5.4%.

Therefore, the daily percent of increase in tourists from one month to the next is approximately 5.4%.

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The probability of rolling doubles given that the sum on the two dice is less than 12 is 0.171.

We need to consider the favorable outcomes (rolling doubles) and the total possible outcomes (sum less than 12).

Favorable outcomes:

There are six possible doubles when rolling a pair of dice: (1, 1), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6).

Total possible outcomes:

The total number of outcomes when rolling a pair of dice is 6× 6 = 36. Since we want to consider only the cases where the sum is less than 12, we need to exclude the outcome (6, 6), as its sum is 12.

Therefore, the total possible outcomes are 36 - 1 = 35.

Now we can calculate the probability:

Probability = (Number of favorable outcomes) / (Number of total possible outcomes)

= 6 / 35

Probability = 0.171

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Answer:

220

Step-by-step explanation:

Got it right :)

Pls make me brainliest

Answer:

220

Step-by-step explanation:

Step-by-step explanation:

Los enteros son números enteros. Las fracciones son partes por elemento entero. Los decimales son fracciones expresadas en décimas.

Answer:

0.82

Step-by-step explanation:

I literally took the test

Answer:

4,5,6 / 6,8,10 / 5,12,13 / ....

Step-by-step explanation:

Base on the pythagorean theorem, we have : a² + b² = c².
The first set : 4,5,6 - 4² + 5² = 6² (a possible set)
The second set : 6² + 8² = 10² (another possible set)
The last set : 5² + 12² = 13² (also possible)

There are a lot more sets, but I'll only list 3. Hope this helps :)

Answer:

a = 8, b = 15, and c = 17

Step-by-step explanation:

Answer: the answer is D

Both sides are equal to 5 radical 2

Step-by-step explanation:

Answer:

95%

Step-by-step explanation:

Answer:

$145.5

Step-by-step explanation:

Answer:

\(\frac{x+3}{x}\)

Step-by-step explanation:

Factorise numerator and denominator

x² - 9 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

x² - 9

= x² - 3² = (x - 3)(x + 3)

x² - 3x ← factor out x from each term

= x(x - 3)

Then

\(\frac{x^2-9}{x^2-3x}\)

= \(\frac{(x-3)(x+3)}{x(x-3)}\) ← cancel common factor (x - 3) on numerator/denominator

= \(\frac{x+3}{x}\)