How do I do this? I don’t understand

The mean age of the combined distribution of both men and women in the course is 20.47 years

What is average/mean ?

The middle number, which is determined by dividing the sum of all the numbers by the total number of numbers, is the average value in mathematics. When determining the average for a set of data, we add up all the values and divide this sum by the total number of values.

Mean age of men , M = 20.7 years

Mean age of Women , W = 20.2 years

Percentage of Men = 54%

Percentage of Women = 46%

Recall, :

Mean, μ = np

The mean age of men in the distribution = (20.7 × 54%) = 11.178 years

The mean age of women in the distribution = (20.2 × 46%) = 9.292 years

The mean age of the combined distribution is :

11.178 + 9.292 = 20.47 years

Therefore, the mean age of the combined distribution is 20.47 years

To learn more about the average from the given link

https://brainly.com/question/1136789

#SPJ1

Step-by-step explanation:

Let the other 4 friends arrange themselves first. There are 4! ways to do so.

Now there are 3 spaces between the 4 friends, and 1 at each end (total 5 spaces)

Example: _F_F_F_F_

Alice can choose to stand in any of the 5 spaces. David can choose to stand in any of the 4 remaining spaces (now Alice and David are not next to each other)

Total number of ways = 4! * 5 * 4 = 480.

An individual's BMR decreases approximately 3 to 5 percent per decade on an average after the age of option C. 30.

Therefore, on an average individuals BMR is approximately decreases by round about 3 to 5 percent per decade after the age of option c. 30.

Learn more about average here

brainly.com/question/24057012

#SPJ4

I have gotten 113

Step-by-step explanation:

The right angle triangle has three angles and the value of its two angles are 90°and30°.We need to find the third angle which is the sum of 90°and 30°subtract from 180°=60°.60° is vertically opposite to angle C. We'll be having a quadrilateral whose angles add up to 360° .Subtract the sum of the three angles from 360° and you'll get 113°

Answer:

I think 2

Step-by-step explanation:

6-2is 4 8-6 2 both have common 6 and 2 multiple of 6is 2

In the equation y = $7.20x + $790, "y" represents the total cost. An equation is a mathematical statement that shows the relationship between two or more variables. In this equation, there are two variables - "x" and "y". The variable "x" represents the number of units produced or sold, while "y" represents the total cost.

The coefficient of "x" in the equation, which is 7.20, represents the variable cost per unit. This means that for each unit produced or sold, there is an additional cost of $7.20. The constant term, which is $790, represents the total fixed costs. Fixed costs are those costs that do not vary with the number of units produced or sold.To find the total cost of producing or selling a certain number of units, we can plug in the value of "x" into the equation and solve for "y". For example, if we want to find the total cost of producing 100 units, we can substitute x=100 into the equation:
y = $7.20(100) + $790
y = $720 + $790
y = $1510
Therefore, the total cost of producing 100 units is $1510. In summary, "y" represents the total cost in the given equation, which is determined by both fixed and variable costs.
In the equation y = $7.20x + $790, "y" represents option C: total costs. This equation has two components: "$7.20x" represents the variable costs per unit, where x is the number of units, and "$790" represents the total fixed costs. By adding these two components together, you get the total costs (y) for producing x units.

Learn more about variable costs here https://brainly.com/question/29001139

#SPJ11

The reaction at pin A is approximately 1.667 kN,  and the force in BC is approximately 3.333 kN.

To determine the reactions at pin A and the force in BC, we need to analyze the equilibrium of the structure. By summing the forces in the horizontal and vertical directions, we can find the unknown reactions and forces.

Let's begin by calculating the reactions at pin A:

Summing forces in the horizontal direction:

∑Fx = 0

RA - BC = 0

RA = BC

Summing forces in the vertical direction:

∑Fy = 0

RA + FD - 1.25 kN/m * 2 m - 1.25 kN/m * 1.5 m - 1.25 kN/m * 0.5 m = 0

RA + FD - 2.5 kN - 1.875 kN - 0.625 kN = 0

RA + FD = 5 kN (Equation 1)

Next, let's calculate the force in BC:

Taking moments about point A:

∑MA = 0

FD * 1.5 m - 1.25 kN/m * 2 m * (2 m/2) - 1.25 kN/m * 1.5 m * (2 m + 1.5 m/2) - 1.25 kN/m * 0.5 m * (2 m + 1.5 m + 0.5 m/2) = 0

1.5 FD - 5 kN = 0

FD = 5 kN / 1.5

FD = 3.333 kN (Approximately) (Equation 2)

Now, we can substitute the value of FD from Equation 2 into Equation 1 to solve for RA:

RA + 3.333 kN = 5 kN

RA = 5 kN - 3.333 kN

RA = 1.667 kN (Approximately)

Learn more about reaction:

https://brainly.com/question/11231920

#SPJ11

Answer:

29 is the correct answer because subtract 90 from 61 we get 29

Step-by-step explanation:

Answer:

29°

Step-by-step explanation:

We know that both angle x and angle "61°" add up to a sum of 90° because it is a right angle.

So, we would have to subtract 61 from 90 to find the missing value.

90 - 61 = 29

Therefore, x equals 29°

-kiniwih426

Answer:

Y=2x-2

2x is the slope

-2 is the y intercept

Step-by-step explanation:

We can drag the particles in mass/grams measurement to the corresponding descriptions as follows:

1.  1.6744 × 10⁻²⁴: Two electrons and 0ne proton

2. 5.021 × 10⁻²⁴: Two protons and one neutron

3. 5.0224 × 10⁻²⁴: One proton and two neutrons

4. 3.3484  × 10⁻²⁴: One electron, one proton, and one neutron

To match the measurements to the descriptions first note that one neutron is 1.6749 × 10⁻²⁴. One proton is equal to  1.6726 × 10⁻²⁴ and one electron is equal to  9.108 × 10⁻²⁸.

To obtain the right combinations, we have to add up the particles to arrive at the constituents. So, for the figure;

1.6744 × 10⁻²⁴, we would

Add 2 electrons and one proton

= 2(9.108 × 10⁻²⁸) + 1.6726 × 10⁻²⁴

= 1.6744 × 10⁻²⁴

The same applies to the other combinations.

Learn more about electrons and protons here:

https://brainly.com/question/1481324

#SPJ1

Answer:

It is D

Step-by-step explanation:

The equation of the horizontal asymptote is  y = − 4  .Horizontal Asymptote:  y = - 4

Answer:

equation not clear. Never in my life have I seen a symble like that

Answer:

Answer: -3n^9

Step-by-step explanation:

cube root of -27 is -3 and divide 27 with 3 you'll get 9 so the answer is -3n^9

The question refers to the plot of the plate's function of the angle of inclination. When the hot side is tilted both upward and downward over the range of +90°, the discontinuous formulas must be used in different ranges of 0.

It refers to the plot of the function of the angle of inclination of a plate. It is a graph that shows the relationship between the angle of inclination and the plate's function. A plate is tilted on its hot side both upward and downward over a range of +90°. The graph shows that different discontinuous formulas are needed for different ranges of 0. A discontinuous formula refers to a formula that consists of two or more parts, each with a different equation. The two or more parts of a discontinuous formula have different ranges, such that each range requires a different equation. These formulas are used in cases where the same equation cannot be applied throughout the entire range.

Learn more about angle of inclination visit:

brainly.com/question/13896283

#SPJ11

The estimated value of the explanatory variable is not statistically significant at the 5%-level if a. the t-statistic is greater than 2.5.

The t-test is a hypothesis testing technique used to decide whether the estimated coefficient of a linear regression model is statistically significant or not. The t-value is used to measure the size of the difference between the estimated coefficient and the hypothesized value. When the t-value exceeds a critical value, such as 2.5, the estimated value of the explanatory variable is not significant at the 5%-level. It implies that the null hypothesis, which assumes that the explanatory variable's coefficient is zero, cannot be rejected.

The p-value is a measure of the probability of obtaining a more extreme value of the test statistic than the observed value if the null hypothesis is true. A small p-value implies that the null hypothesis should be rejected. When the p-value is less than 0.05, it means that the estimated value of the explanatory variable is significant at the 5%-level.

The confidence interval is a range of values that is expected to include the true value of the population parameter with a specified level of confidence. A 95% confidence interval means that the true value of the population parameter lies within the range 95% of the time. The 95% confidence interval does not contain zero implies that the estimated value of the explanatory variable is statistically significant at the 5%-level since it suggests that the population parameter is different from zero at the 5%-level. Conversely, if the 95% confidence interval contains zero, the estimated value of the explanatory variable is not statistically significant at the 5%-level since it means that the population parameter is not different from zero at the 5%-level. Therefore, it is essential to examine the t-statistic, p-value, and confidence interval while conducting hypothesis testing to make an informed decision.

To leran more about hypothesis testing, refer:-

https://brainly.com/question/17099835

#SPJ11

Answer:

39

Step-by-step explanation:

i think

Answer:

5/16

Step-by-step explanation:

Each number can happen in exactly one way (one sets the digit of tens and the other of ones).

We know that the law of divisibility by 3 is "sum of digits has to be divisible by 3", so let's examine the numbers:

11

13

15 - Yes

17

31

33 - Yes

35

37

51 - Yes

53

55

57 - Yes

71

73

75 - Yes

77

So it's 5 out of 16 options.

We could do it by examining the relation and modulus shifts with each digit, but for 16 numbers it's seriously faster to just list them.

Answer:

Dear friend i hope the answer is 4753 which is the mystery four digit number.

your ans is here........

Answer:It is not possible

Step-by-step explanation: It is not possible because we need 12 plot to solve for an accurate mean but there is only 11 data which is impossible.

We will have a Deficit balance of $30 at the end of the month.

"Unilateral transfer" is the term used to describe the balance of payments deficit's most obvious cause. For instance, Americans who contribute money to another country in the form of foreign aid do not receive anything in return (economically speaking). Few economists would argue that foreign aid-related balance of payment deficits are a "bad thing."

Weekly net income = $380

Monthly net income = $380 * 4 weeks = $1520.

Monthly expenses = $1550

Balance = Monthly income - monthly expenses = $-30.

The negative sign shows a deficit of $30 monthly

Therefore, We will have a Deficit balance of $30 at the end of the month.

To learn more about Deficit, visit the link below:

brainly.com/question/2290367

#SPJ4

Answer:

5

Step-by-step explanation:

Answer:

5 (Follow PEMDAS left—>right)

Answer:

Rise it to 2

( x ^2 ) ^2 − 9 ^2 = 0

Step-by-step explanation:

Answer:

10 times

Step-by-step explanation:

The value of the 7 in 70,048 is 70,000

The value of the 7 in 17,992 is 7,000.

If you divide 70,000 by 7,000, you get 10.

The first 7 is 10 times greater than the 2nd.

I hope this helps!

pls ❤ and mark brainliest pls!

Answer:10 times

Step-by-step explanation:

The value of 7 in 70,048 stands for 7 Ten thousand  which is equal to 70,000

Also 7 in 17,992 stands for 7 thousand which is equal to  7,000

So we divide to know how much the lesser value is in the grater vale giving us

70,000/7,000 =10

Therefore, the value of 7 in 70,048 is 10 times  than the value of 7 in 17,992

See similar answer here: https://brainly.com/question/13200619

At the 5% level of significance, there is not enough evidence to suggest that the true mean weight of the packages is smaller than the specification of 18 ounces.

To determine whether the true mean weight of a package of rolled oats is smaller than the specification of 18 ounces, we can perform a one-sample t-test.

Hypotheses:

- Null Hypothesis (H0): The true mean weight of the packages is equal to or greater than 18 ounces.

- Alternative Hypothesis (H1): The true mean weight of the packages is smaller than 18 ounces.

The decision rule for hypothesis testing at a 5% level of significance is to reject the null hypothesis if the test statistic falls in the critical region, which is determined by the critical value.

In this case, since we are testing if the true mean is smaller, it is a one-tailed test with a significance level of 0.05.

The test statistic can be calculated as:

t = (sample mean - hypothesized mean) / (standard deviation / sqrt(sample size))

Plugging in the values:

sample mean = 17.78 ounces

hypothesized mean = 18 ounces

standard deviation = 0.41 ounce

sample size = 18

t = (17.78 - 18) / (0.41 / sqrt(18))

Calculating this value, we find t ≈ -1.222

Next, we need to find the critical value corresponding to a 5% significance level and (n-1) degrees of freedom, where n is the sample size (18 - 1 = 17).

Using a t-table or a t-distribution calculator, the critical value is approximately -1.746.

Since the calculated test statistic (-1.222) does not fall in the critical region (less than -1.746), we fail to reject the null hypothesis.

To know more about true mean refer here:

https://brainly.com/question/31962294#

#SPJ11

The unit circle can be divided into 6 equal arcs using t-values that are multiples of π/3.

To determine the number of equal arcs that can be formed by dividing the unit circle using t-values that are multiples of π/3, we need to consider the angular measure between each division point.

A circle has a total angular measure of 360 degrees or 2π radians. Since we are using t-values that are multiples of π/3, each division point will have an angular measure of π/3.

To find the number of equal arcs, we divide the total angular measure of the circle (2π radians) by the angular measure between each division point (π/3 radians):

Number of equal arcs = (Total angular measure of the circle) / (Angular measure between each division point)

Number of equal arcs = (2π radians) / (π/3 radians)

Simplifying the expression, we get:

Number of equal arcs = (2π radians) * (3/π radians)

Number of equal arcs = 6

Therefore, the unit circle can be divided into 6 equal arcs using t-values that are multiples of π/3. Each arc will have an angular measure of π/3.

To learn more about unit circle, click here: brainly.com/question/29298870

#SPJ11

Answer:

The right triangle altitude theorem or geometric mean theorem is a result in elementary geometry that describes a relation between the lengths of the altitude on the hypotenuse in a right triangle and the two line segments it creates on the hypotenuse.

Step-by-step explanation:

Was definetly not copy and pasted from g.o.o.g.l.e. no siree