A science club at Emily’s middle school has 25 members. Only 40% of the members attended Saturday meetings. What is the number of members that attended the Saturday meetings?

A. 6

B. 9

C. 10

D. 15

(Will give brainliest and a heart)

A total of 40 fans are randomly selected throughout the whole stadium is best method to represents the population at the game

The best method for representing the population at the game is the one that is most likely to provide a random and representative sample of the entire population of sports fans attending the game.

Method 3, which involves randomly selecting 40 fans throughout the whole stadium, is likely to be the best method for obtaining a representative sample of the population.

This method has the advantage of being more random and less biased than the other methods, as it does not limit the selection to specific areas of the stadium or to fans who are in line for refreshments.

Hence, option D is correct.

To learn more on Statistics click:

https://brainly.com/question/30218856

#SPJ1

The exact solution of this equation involves solving a quadratic equation, which may not result in a simple integer value for x.

To find the point (x, y) on the function f(x) = 6 - 7x that is closest to the point (-10, -4), we need to minimize the distance between the two points.

The distance between two points (x1, y1) and (x2, y2) is given by the formula:

d = sqrt((x2 - x1)^2 + (y2 - y1)^2)

In this case, we want to minimize the distance between the point (-10, -4) and any point on the function f(x) = 6 - 7x. So we can set up the distance equation:

d = sqrt((-10 - x)^2 + (-4 - (6 - 7x))^2)

To find the point (x, y) that minimizes the distance, we can find the value of x that minimizes the distance equation. Let's differentiate the distance equation with respect to x and set it equal to zero to find the critical point:

d' = 0

Differentiating and simplifying the equation, we get:

(-10 - x) + (-4 - (6 - 7x))(-7) = 0

Solving this equation will give us the value of x at the closest point. Plugging this x-value into the function f(x) = 6 - 7x will give us the corresponding y-value.

Know more about distance here:

https://brainly.com/question/13034462

#SPJ11

a) The probability of failing to meet the specification limit of 45-pounds tensile strength 15.87%.

b) The number of parts that would not meet the specification is 7,935.

a) Given that the tensile strength of a metal part is normally distributed with mean 40 pounds and standard deviation 5 pounds.

We have to find the probability of failing to meet the specification limit of 45-pounds tensile strength.

Using the standard normal distribution, we can find the probability of failing to meet the specification limit of 45 pounds as follows:

z = {45 - 40}/{5}

= 1

The probability of failing to meet the specification limit of 45 pounds is the probability that the standardized variable Z is greater than 1, which is given by:

P(Z > 1) = 0.1587

Therefore, the probability of failing to meet the specification limit of 45-pounds tensile strength is 0.1587 or 15.87%.

b) If the probability of failing to meet the specification is 0.1587, the probability of meeting the specification limit is

1 - 0.1587 = 0.8413

.If 50,000 parts are produced, then the expected number of parts that meet the specification limit is:

0.8413* 50,000 =  42,065.

Therefore, the number of parts that would not meet the specification is: 50,000 - 42,065 = 7,935.

Hence, about 7,935 parts would not meet the specification.

Know more about the normally distributed

https://brainly.com/question/4079902

#SPJ11

Solution:

Starting point = (4, -12)

Length = units

Along the y axis, the endpoints could be

(4, -7) and (4, -17)

Along the x- axis, the endpoints could be

(9, -12) and (-1, -12).

The answer is (4, -7), (4, -17), (9, -12), (-1, -12).

Answer and Step-by-step explanation:

Simply use triangles to find the length of the lasers.

The first triangle consists of the sides of 12 inches, 18 inches, and the laser (which is the hypotenuse).

Use the Pythagorean theorem to solve for the hypotenuse.

(\(a^{2}+ b^{2} = c^{2}\))

\(12^{2} +18^{2} = l^{2} \\\\144 + 324 = l^{2} \\\\468 = l^{2} \\\\Square-root-both-sides\\\\\ \\\sqrt{468} = l\)

l ≈21.633

Now, we solve the other triangle.

\(9^{2} +6^{2} = l^{2} \\\\81 + 36 = l^{2} \\\\117 = l^{2} \\\\Square-root-both-sides\\\\\sqrt{117} =l\\l = 10.8167\)

Now, add those two hypotenuses.

21.6333 + 10.8167 = 32.45

32.45 rounds up to 32.5

32.5 is the total distance the laser beam travels.

#teamtrees #WAP (Water And Plant)

The Pearson correlation coefficient (r) for the given data is -0.56.  The scatterplot indicates that as the day number increases, the number of fish caught decreases.

To find the Pearson correlation coefficient (r) for the given data, we need to analyze the association between two quantitative variables, which are the day and the number of fish caught per a six-hour fishing episode. By entering the data into a website such as artofstat.com, which provides a scatterplot of the data, descriptive statistics, and the Pearson correlation coefficient (r).

To find the Pearson correlation coefficient (r) for the given data, we can follow the steps outlined below:
Step 1: Enter the data into a website such as artofstat.com for analyzing the association between two quantitative variables.
Step 2: Select the Individual Observations option under Enter Data.
Step 3: Type or copy and paste the given data set into the spreadsheet window.
Step 4: Analyze the scatterplot of the data to determine the association between the two variables.
Step 5: Check the descriptive statistics provided by the website to get an idea of the central tendency and variability of the data.
Step 6: Find the Pearson correlation coefficient (r) for the data.

To know more about correlation coefficient (r) visit :-

https://brainly.com/question/30089752

#SPJ11

Answer:

The ratio of the perimeters is 3

The ratio of the areas is 9

Step-by-step explanation:

Given:

Dilate a triangle with vertices (0, 0), (0, 2), and (2,0) using the scale factor k = 3.

To Find:

What is the value of the ratio (new to original) of the perimeters? the areas?

Solution:

What is the value of the ratio (new to original) of the perimeters?

Since, two figures are similar, then the ratio of its perimeters is equal to the scale factor

Let the following be:

k        ⇒          the scale factor

x        ⇒          the perimeter of the new triangle

y        ⇒          the perimeter of the original triangle

Knowing that:

k = x/y

Thus:

k = 3

Now Substitute:

x/y = 3

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

What is the value of the ratio (new to original) of the areas?

Since, two figures are similar, then the ratio of its areas is equal to the scale factor squared.

k       ⇒          the scale factor

x        ⇒          the area of the new triangle

y        ⇒          the area of the original triangle

k ² = x/y

Since,

z = 3

Then,

x/y = 3 ²

3 ² means to 3 × 3

x/y = 9

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

Kavinsky

The smallest number of eggs that could have been in the basket = 301

Given that the basket is filled with an unknown number of eggs.

Let N be the smallest number of eggs in the basket.

When eggs are removed 2, 3, 4, 5, or 6 at a time, one egg is left over at the end which means (N-1) is divisible by 2, 3, 4, 5, or 6, i.e. (N-1) is the least common multiple of 2, 3, 4, 5, and 6.  

Since LCM (2, 3, 4, 5, 6) = 60

So, (N-1) should be a multiple of 60, then only (N-1) will be divisible by 2, 3, 4, 5, and 6. Therefore N is of the form 60k+1 (where k is an integer).

Since no egg is left over when they are removed 7 at a time, N should be a multiple of 7. Smallest multiple of 7 that is of the form 60k+1 (where k is an integer) is 301.

Hence the smallest number of eggs that could have been in the basket = 301.

To learn more about LCM visit : https://brainly.com/question/16054958

#SPJ11

Answer:

no

Step-by-step explanation:

If it represented a function then it wouldn't be curved. curved lines don't represent a function

Answer:

you need to show the numbers

Step-by-step explanation:

The value of angle Q using the concept of similar quadrilaterals is: ∠Q = 91°

Two quadrilaterals are said to be similar quadrilaterals provided that three corresponding angles are equal (the sum of the interior angles is 360 degrees, so the fourth angle is automatically equal) and if the proportions of the two adjacent sides are equal is.

Now, we ware told that the wo given quadrilaterals GHIJ and RQPS are similar.

This tells us that corresponding angles and sides are equal to each other and therefore, we can say that:

∠G = ∠R

∠H = ∠Q

∠I = ∠P

∠J = ∠S

Thus:

∠Q = 91°

Read more about Similar quadrilaterals at:https://brainly.com/question/16261621

#SPJ1

Answer:

yes

Step-by-step explanation:

x isnt a number

Answer:

x is less than and always 24

Check the picture below.

Answer:

an=an-1

Step-by-step explanation:

as it doesnt have -6 +3n

Answer:

The answer is n=36 Hope this helps^_^

Step-by-step explanation:

plz give brainliest and rating

The probability that Jamie makes exactly 7 shots out of 10 free throws is 0.214990848.

To find the probability that Jamie makes exactly 7 shots out of 10 free throws, we can use the binomial probability formula. The formula is as follows: P(X = k) = (n choose k) * p^k * (1-p)^(n-k) where n is the number of trials, k is the number of successes, p is the probability of success, and (n choose k) is the binomial coefficient that represents the number of ways to choose k successes from n trials.

Now, we can plug in the values that we know into the formula:

n = 10,

k = 7,

p = 0.6 P(X = 7)

= (10 choose 7) * 0.6^7 * (1-0.6)^(10-7)

We need to evaluate (10 choose 7) using the combination formula: (10 choose 7) = 10! / (7! * 3!) = 120Plugging this into the binomial formula,

we get:

P(X = 7) = 120 * 0.6^7 * 0.4^3

= 0.214990848

To know more about probability visit:-

https://brainly.com/question/31828911

#SPJ11

The width of the rectangle is 9 meter.

Now, According to the question:

The perimeter of a rectangle is defined as the sum of all the sides of a rectangle. For any polygon, the perimeter formulas are the total distance around its sides. In case of a rectangle, the opposite sides of a rectangle are equal and so, the perimeter will be twice the width of the rectangle plus twice the length of the rectangle and it is denoted by the alphabet “p”.

Now, Solving the problem:

Perimeter of rectangle is 50 meter sq.

Length of the rectangle(L) is 16 meter.

We have to find the width (W) of the rectangle.

We know that,

Perimeter of rectangle is = 2 (L + W)

50 = 2(16 + W)

50 = 32 + 2W

2W = 50 - 32

2W = 18

W = 18/2

W = 9

Hence, The width of the rectangle is 9 meter.

Learn more about Perimeter of rectangle at:

https://brainly.com/question/22109593

#SPJ4

Answer:

huh?

Step-by-step explanation:

the rodent population is expected to reach 1 million in approximately 27.59 years. The population of rodents is expected to double every 6 years. To find out when the population will reach 1 million, we can use the formula:

N = N0 x 2^(t/T)

Where:
N0 = initial population (45000)
N = final population (1000000)
t = time (in years)
T = doubling time (6 years)

Plugging in the values, we get:

1000000 = 45000 x 2^(t/6)

Dividing both sides by 45000, we get:

22.22 = 2^(t/6)

Taking the logarithm of both sides, we get:

log(22.22) = (t/6) x log(2)

Dividing both sides by log(2), we get:

t/6 = log(22.22)/log(2)

t = 6 x log(22.22)/log(2)

t ≈ 31.21 years

Therefore, it will take approximately 31.21 years for the rodent population to reach 1 million. Rounded to the nearest hundredth of a year, the answer is 31.21 years.
The rodent population in the city is currently estimated at 45,000 and is expected to double every 6 years. To find when the population will reach 1 million, we can use the formula for exponential growth:

Final Population = Initial Population * (2^(Years Passed / Doubling Time))

1,000,000 = 45,000 * (2^(Years Passed / 6))

Divide both sides by 45,000:

22.2222 ≈ 2^(Years Passed / 6)

Take the logarithm base 2 of both sides:

log2(22.2222) ≈ Years Passed / 6

Now, multiply both sides by 6:

6 * log2(22.2222) ≈ Years Passed

Calculate the value:

≈ 27.59 years

So, the rodent population is expected to reach 1 million in approximately 27.59 years.

To know more about exponential growth: click here:

brainly.com/question/12101306

#SPJ11

Answer:

2/5

Step-by-step explanation:

The coefficients obtained by the student may be less efficient and have larger standard errors compared to the professor's regression.

If the student enters each observation twice, resulting in a sample size of 100 instead of the original 50, the assumption of independent observations is violated in Ordinary Least Squares (OLS) regression. The OLS assumption assumes that the observations are independent, meaning that the value of one observation does not depend on the value of another observation.

In this case, the student's dataset contains repeated observations, which introduces dependence between observations. This violation of the independence assumption can lead to biased and inconsistent parameter estimates in the regression analysis.

Regarding the slope coefficients, if the student runs a regression using the duplicated data, the estimated coefficients may be different from the professor's regression. The duplication of observations inflates the sample size, potentially affecting the precision and accuracy of the estimates.

However, the direction and overall relationship between the variables may still be captured by the student's regression, although the estimates may not be as reliable.

learn more about coefficients here

https://brainly.com/question/1594145

#SPJ11

Let the amount of the 30% solution be x gallons.

Then the amount of the 10% solution is (100 - x) gallons.

The amount of juice in the 30% solution is 0.3x gallons.

The amount of juice in the 10% solution is 0.1(100 - x) gallons.

When the two solutions are mixed, we get 100 gallons of a 12% juice solution, which means:

0.3x + 0.1(100 - x) = 0.12(100)

Simplifying this equation, we get:

0.3x + 10 - 0.1x = 12

0.2x = 2

x = 10

Therefore, 10 gallons of the 30% solution was used.

Know more about Quantities here:

https://brainly.com/question/29610435

#SPJ11

Answer:

2,4,3,1,5,3,2 is the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

Create the equation 8x-4=36. Adding 4 to both sides gets 8x=40. Dividing both sides by 8 gets us x=5.

Answer:

https://www.algebra.com/algebra/homework/word/numbers/Numbers_Word_Problems.faq.question.826722.html

Step-by-step explanation:

go to this website, hope you understand it.

Answer:

first=19/5 or 3.8

second=2/5 or 0.4

Step-by-step explanation:

x+3y=5

2x+y=8

multiply by 3

6x+3y=24

subtract

5x=19

x=19/5

2×19/5+y=8

38/5+y=8

38+5y=40

5y=40-38=2

y=2/5

The source of bias most relevant to this situation is "perceived lack of anonymity."

When both members of a couple are asked to indicate if they have remained monogamous in their current relationship, they may be hesitant to answer truthfully due to concerns about their privacy or potential repercussions. They might feel that their responses could be traced back to them, which could lead to negative consequences in their relationship. This fear of not being anonymous can result in participants providing inaccurate or dishonest responses.

In a study asking couples about their monogamy, the most relevant source of bias is perceived lack of anonymity, as it may affect the accuracy and honesty of participants' responses.

To know more about situation visit:

https://brainly.com/question/2023772

#SPJ11