Helppppp please please please

Answer: B

Step-by-step explanation:

The ordered pair that is on g(x) is (2, -3/400)

determine the ordered pair:

The function is given as:

f(x)=3/4(10)∧-x

The rule of reflection across the x-axis is:

g(x) = -f(x)

So, we have:

g(x) = -3/4(10)∧-x

Set x = 2.

So, we have:

g(2) = -3/4(10)∧-2

Evaluate the exponent

g(2) = -3/4 * 1/100

Evaluate the product

g(2) = -3/400

This means that:

(x, y) = (2, -3/400)

Hence, the ordered pair that is on g(x) is (2, -3/400)

Ordered pairs are pairs of two numbers (or variables) that are enclosed in parentheses and separated by commas. For example, (1, 2) is an ordered pair. Coordinate geometry represents points, and set theory represents elements of relations / Cartesian products.

Ordered pairs are pairs of numbers in a particular order. For example, (1, 2) and (-4, 12) are ordered pairs. The order of the two numbers is important. (1, 2) is not equivalent to (2, 1)-(1, 2) ≠ (2, 1).

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Answer: D) Reflect over x-axis

=======================================================

Explanation:

When we do this type of reflection, a point like (1,2) moves to (1,-2).

As another example, something like (5,-7) moves to (5,7)

The x coordinate stays the same but the y coordinate flips in sign from positive to negative, or vice versa.

We can say that \((x,y) \to (x,-y)\) as a general way to represent the transformation. Note how y = f(x), so when we make f(x) negative, then we're really making y negative.

If we apply this transformation to every point on f(x), then it will flip the f(x) curve over the horizontal x axis.

There's an example below in the graph. The point A(2,8) moves to B(2,-8) after applying that reflection rule.

The lower bound of the 95% confidence interval is approximately 66.1373.

To find the lower bound of a 95% confidence interval for a normal population based on a sample of size 30 with a sample mean of 68 and a sample standard deviation of 5, we will use the formula for confidence intervals.

The lower bound is calculated as the sample mean minus the margin of error, where the margin of error is determined by the critical value from the t-distribution multiplied by the standard error.

Since the sample size is 30, we use the t-distribution instead of the Z-distribution. For a 95% confidence level and a sample size of 30, the critical value can be obtained from the t-table or statistical software and is approximately 2.045.

Next, we calculate the standard error (SE) using the formula:

Standard Error = Sample Standard Deviation / √Sample Size

Substituting the given values, we get:

Standard Error = 5 / √30

Calculating the standard error, we find it to be approximately 0.9129.

Finally, we calculate the lower bound of the confidence interval using the formula:

Lower Bound = Sample Mean - (Critical Value * Standard Error)

Substituting the values, we have:

Lower Bound = 68 - (2.045 * 0.9129)

Calculating the lower bound, we find it to be approximately 66.1373.

Therefore, the lower bound of the 95% confidence interval is approximately 66.1373.

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Answer:

Step-by-step explanation:

Answer:

\( \sqrt{3} \)

Step-by-step explanation:

- since it's an isosceles triangle, the other two angle is the same, so 180-90÷2=45

- i use SOH, CAH, TOA rule and in this case, i use SOH.

Answer:

x = √3

Step-by-step explanation:

Let us use the Pythagoras theorem to find the value of x.

Accordingly,

x² + x² = (√6)²

2x² = 6

Divide both sides by 2.

x² = 3

Put square roots on both sides.

x = √3

Answer:

$138

Step-by-step explanation:

Answer:

37

Step-by-step explanation:

2-digit number: 10x + y

y = x + 4

20x + 2y = 10y + x + 1

8y = 19x - 1

8x + 32 = 19x - 1

11x = 33

x = 3

Number: 37

Answer:

Answer:

37

Step-by-step explanation:

2-digit number: 10x + y

y = x + 4

20x + 2y = 10y + x + 1

8y = 19x - 1

8x + 32 = 19x - 1

11x = 33

x = 3

Number: 37

Answer:

then KD would be equal?

Step-by-step explanation:

not sure, but try that

Answer:

to hard.

Step-by-step explanation:

This ensures that the lines will be parallel since two lines that are perpendicular to one another must also be parallel.

Two lines that meet or cross at right angles (90°) are known as perpendicular lines in geometry. The word "perpendicular" comes from the Latin "perpendicularis," which denotes a plumb line.

We can write two lines, AB and CD, as AB ⟂ CD if they are perpendicular to one another. The lines are denoted as being perpendicular by the ⟂ symbol.

The following list includes the two main characteristics of perpendicular lines.

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Answer: 2/13

Step-by-step explanation:

There are 4 queen (Q) & 4 king (K) cards in a standard deck of 52 cards . Therefore,required probability of drawing a queen or a king = P(QUK) = P(Q) + P(K) = 4/52 + 4/52 = 2/13 .

Answer: 2

Step-by-step explanation:

The value of a home increases by 7%each year, by compounding the value of the home doubles approximately once each decade.

Compounding is a process where the interest is credited to the initial amount and interest, on the whole, is charged again. and this continues for t period of time.

It is given by the formula,

A=P(1+r)^t

where A is the value after t period of time,

P is the value of the asset at the beginning, and,

r is the rate of interest.

The value of the home doubles once each decade.

Given to us

The value of a home increases by 7% each year.

As it is given that the value of a home increases by 7% each year, therefore, the value of the home is compounding every year.

We know the formula of compounding,

A=P(1+r)^t

Why does the value doubles?

Now, let's assume a house whose value is 'P' today, therefore, substitute the value of the house in the formula of compounding,

A=P(1+r)^t

Substitute the rate at which the value is increasing,

A=P(1+0.07)^t

We know that in a decade there are 10 years,

A=P(1+0.07)^10=P(1.07)^10

=1.967P

Approximately

=2P

As we can see that the value of the home is almost 2 times the 'P' therefore, twice the value of the home at the beginning.

Hence, the value of the home doubles once each decade.

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What is Unitary Method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

Total amount = $285.75

Parking = $13.75

Price of ticket per person = $34.

So, money left after paying for parking

=285.75 - 13.75

= 272

Now, number of people in amusement park

= 272/34

=8

Hence, 8 people can go to the amusement park.

This will give us the quotient, which will be the formula for the rational function.f(x) = \((x^2 + 2x - 3) / (x^2 + x - 2)f(x) = (x + 3)(x - 1) / (x + 2)(x - 1)f(x) = (x + 3) / (x + 2)\)Thus, the formula for the rational function graphed above is\(:f(x) = (x + 3) / (x + 2)\)

Use the following terms in your answer, "find a formula for the rational function graphed below. the function has a horizontal asymptote of y?"Rational function graphed belowThe horizontal asymptote of the function is y = 1, as shown by the dotted line. A rational function is a function that can be written as the ratio of two polynomial functions, where the denominator is not zero. A rational function can have horizontal, vertical, or oblique asymptotes, depending on the behavior of the function as x approaches infinity or negative infinity.In this case, the horizontal asymptote is at y = 1, which means that as x gets very large or very small, the function approaches this value. To find a formula for the rational function, we need to use the given information about the horizontal asymptote.The general form of a rational function is: f(x) = (ax^2 + bx + c) / (dx^2 + ex + f)To find a formula for the given function, we need to determine the coefficients of this general form. Since we know that the horizontal asymptote is y = 1, we can use long division or synthetic division to divide the denominator by the numerator.

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Match the Data Visualisation terms as follows:

1. Numpy: Working with arrays and matrices.

2. Bar chart: Representing categorical data with rectangular bars.

3. Pip: Package installer for Python.

4. S: Statistical library for Python.

The following are the meanings of the given terms:

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Answer:

-1

Step-by-step explanation:

calculator

:)

Answer:

7/5

Step-by-step explanation:

If he starts with 3/5 of the new set, then he begins with 3/5

After adding 4/5 of the new set, you add his current stamps with the new stamps, 3/5 + 4/5 , which results in 7/5

Answer:

1688/22

Step-by-step explanation:

keep, change, flip

We know that on each side of the street it is 10 feet deep and 1 mile long, which 1 mile = 5280 feet. So, lets get the area first .

In this problem, we are dealing with a random variable related to people's opinions on a new building project. We are given four options for the correct wording of the random variable and need to determine the correct one. Additionally, we are asked to calculate probabilities associated with the number of people who favor the new building project, ranging from exactly 4 to at most 6.

a) The correct wording for the random variable is "rv = the number of people who are in favor of a new building project." This wording accurately represents the random variable as the count of individuals who support the project.

b) To calculate the probability that exactly 4 people favor the new building project, we need to use the binomial probability formula. Assuming the probability of a person favoring the project is p, we can calculate P(X = 4) = (number of ways to choose 4 out of 10) * (p^4) * ((1-p)^(10-4)). The value of p is not given in the problem, so this calculation requires additional information.

c) To find the probability that less than 4 people favor the new building project, we can calculate P(X < 4) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3). Again, the value of p is needed to perform the calculations.

d) The probability that more than 4 people favor the new building project can be calculated as P(X > 4) = 1 - P(X ≤ 4) = 1 - (P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)).

e) The probability that exactly 6 people favor the new building project can be calculated as P(X = 6) using the binomial probability formula.

f) To find the probability that at least 6 people favor the new building project, we can calculate P(X ≥ 6) = P(X = 6) + P(X = 7) + P(X = 8) + P(X = 9) + P(X = 10).

g) Finally, to determine the probability that at most 6 people favor the new building project, we can calculate P(X ≤ 6) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6).

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(i) The correct statement about the probability of Aadi getting Tails is B - Sue's estimate is best because she gets more Tails. The number of times a coin is flipped affects the accuracy of the probability estimate, but getting more Tails in fewer trials does not necessarily mean that the probability of getting Tails is higher.

(ii) Eric got 3 Tails in 10 trials, so the proportion of Tails is 3/10. Sue got 20 Tails in 50 trials, so the proportion of Tails is 20/50 or 2/5. We can use the average of these two proportions as an estimate for the probability that Aadi will get Tails.

(3/10 + 2/5) / 2 = 0.35

So the estimated probability of Aadi getting Tails is 0.35 or 7/20 in fraction form.

Edward started his hike at an elevation of 115 feet below sea level. Throughout the hike he ascended 3,200 feet and then descended 676 feet. How much did his elevation change?

115+676=791

3200-791= 2409

his elevation changed by 2409 ft

brainliest pls

Answer:

Step-by-step explanation:

1 + ( -5)     Adding a negative = subtracting:

= 1 - 5

= -4.

Think of these numbers as 'directed' numbers - the numbers depend on the direction.

If we have a thermometer and the temperature reads 1 degree and the temperature drops, the mercury travels down ( negative direction) by 5 units. . It goes down 1 degree to reach 0 then another 4 degrees to reach -4,

1 - 5 = -4.

Answer:

Step-by-step explanation:

the answer would be x=0 because if this problem is proportional 5 x 4 = 20

and 0 x 4 =0

Answer:

4=x

Step-by-step explanation:

0 X

— = —

5 20

What times 5 gives you 20 ?

4 so x would be 4

The critical value of χ² with 1 degree of freedom for α = 0.025 is given by χ² = 3.841.The critical value of χ² with 1 degree of freedom for α = 0.025 is 3.841.What is the chi-square distribution? The chi-square distribution, often known as a chi-squared distribution, is a continuous probability distribution that is often used in statistics.

A chi-squared distribution is the sum of the squares of independent standard normal random variables that have been standardized. In statistics, the chi-square distribution is frequently used to determine if a sample's variance is equal to the population's variance. This is often accomplished by determining the difference between the observed data and the theoretical data expected, and then squaring that value. That value is then divided by the expected value to obtain the chi-square value.

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Answer:

0.2483 = 24.83% probability that the proportion of sales from necklaces at Ruby's will be less than the proportion of sales from necklaces at Nugget Jewels.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:

\(Z = \frac{X - \mu}{\sigma}\)

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Subtraction of normal variables:

When we subtract normal variables, the mean is the subtraction of the means, while the standard deviation is the square root of the sum of the variances.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \(\mu = p\) and standard deviation \(s = \sqrt{\frac{p(1-p)}{n}}\)

Sampling distribution for the sample proportion of necklaces from Ruby's jewelry:

34% of sales at Ruby's jewelry store are from necklaces, 50 customers.

This means that \(p = 0.34, n = 50\)

So

\(\mu_{R} = p = 0.34\)

\(s_{R} = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.34*0.66}{50}} = 0.067\)

Sampling distribution for the sample proportion of necklaces from Nugget jewels:

28% of sales at Nugget Jewels, 60 customers.

This means that \(p = 0.28, n = 60\)

So

\(\mu_{N} = p = 0.28\)

\(s_{N} = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.28*0.72}{60}} = 0.058\)

What is the probability that the proportion of sales from necklaces at Ruby's will be less than the proportion of sales from necklaces at Nugget Jewels?

This is \(P(X < 0)\), on the subtraction distribution R - N.

We have that:

\(\mu_{R-N} = \mu_{R} - \mu_{N} = 0.34 - 0.28 = 0.06\)

\(s_{R-N} = \sqrt{s_{R}^2 + s_{N}^2} = \sqrt{0.067^2 + 0.058^2} = 0.0886\)

The probability is the pvalue of Z when X = 0. So

\(Z = \frac{X - \mu_{R-N}}{s_{R-N}}\)

\(Z = \frac{0 - 0.06}{0.0886}\)

\(Z = -0.68\)

\(Z = -0.68\) has a pvalue of 0.2483.

0.2483 = 24.83% probability that the proportion of sales from necklaces at Ruby's will be less than the proportion of sales from necklaces at Nugget Jewels.

Answer:

0.250

Step-by-step explanation:

got it right on edge