the weights of people in a certain population are normally distributed with a mean of 154 lbs and a standard deviation of 23 lbs. what is the distribution of the mean of random samples of size 4?

The length of side AC is approximately 2.87 units when rounded to the nearest hundredth.

In a right triangle ABC, where angle ACB is a right angle and angle ABC is 35 degrees, we are given that side AB has a length of 5 units. We need to find the length of side AC.

To find the length of side AC, we can use trigonometric ratios. In this case, we can use the sine function.

The sine of angle ABC is defined as the ratio of the length of the side opposite the angle (AC) to the length of the hypotenuse (AB).

sin(35°) = AC / 5

To find the length of AC, we can rearrange the equation:

AC = 5 * sin(35°)

Using a calculator to find the sine of 35 degrees, we get:

AC ≈ 5 * 0.5736 ≈ 2.868

Therefore, the length of side AC is approximately 2.87 units when rounded to the nearest hundredth.

For such more questions on Right triangle:

https://brainly.com/question/1248322

#SPJ11

300m of the fruit farm land will produce 300 kilograms of oranges. Given that 1 acre of land produces 2 tons of oranges, we can calculate the equivalent amount of oranges produced on 300m of land.

We know that 1 acre of land produces 2 tons of oranges. To find the equivalent amount of oranges produced on 300m of land, we need to convert the units of measurement.

First, we convert 1 acre to square meters. 1 acre is equal to 4046.86 square meters.

Next, we need to determine the proportion of land used. We have 300m of land, which is equivalent to 300 square meters.

Now we can calculate the amount of oranges produced on 300m of land. Since 1 acre produces 2 tons of oranges, we can set up a proportion:

1 acre / 2 tons = 300 square meters / x kilograms

Cross-multiplying the proportion, we get:

1 acre * x kilograms = 2 tons * 300 square meters

Simplifying the equation, we find:

x = (2 tons * 300 square meters) / 1 acre

x = (2 * 300) kilograms

x = 600 kilograms

Therefore, 300m of the fruit farm land will produce 600 kilograms of oranges.

Learn more about measurement here:

https://brainly.com/question/28913275

#SPJ11

The distance covered by Ahab 100 km.

Given that Ahab drove 46 miles we need to calculate his distance in Km.

So, since 1 km = 0.46 miles

1 mile = 100/46

Therefore,

46 miles = 100/46 x 46

46 miles = 100 km

Hence the distance covered by Ahab 100 km.

Learn more about unit conversion click;

https://brainly.com/question/19420601

#SPJ1

Answer:

48%

Step-by-step explanation:

 25 is 100% of 25

      so

25----------------100%

12------------------ X

   Cross multiplication

 25X = 12x100

25X = 1200

  X = 48

    I makes sense since half (50%) of 25 is 12.5   So 12 is a little less than half

Answer:

48

Step-by-step explanation:

to solve this you would use the [tex]\frac{part}{whole}[/tex] = [tex]\frac{percent}{100}[/tex] equation.

the whole would be 25 as that is what you are taking the percent out of.

the part would be 12, as that is what the percent of the whole equals.

plug those in:

[tex]\frac{12}{25} = \frac{percent}{100}[/tex]

change the percent to an x, as that is what we're solving for

[tex]\frac{12}{25} = \frac{x}{100}[/tex]

cross multiply to get

[tex]25x=1200[/tex]

isolate the variable by dividing by 25 on both sides

[tex]\frac{25x}{25} = \frac{1200}{25}[/tex]

you should get[tex]x=48[/tex]

48 is your answer

The surface area of the cylinder is 32π units²

What is surface area of cylinder?

A cylinder is a three-dimensional solid that holds two parallel bases joined by a curved surface, at a fixed distance. The base of a cylinder is circular and it's volume is given by ; V = πr²h

The surface area of a cylinder is expressed as;

SA = 2πr( r+h)

where r is the radius and h is the height.

radius = 2 units

height = 6 units

SA = 2×2 π( 2+6)

SA = 4π × 8

SA = 32π units²

Therefore the surface area of the cylinder in term of pi is 32π units².

learn more about surface area of cylinder from

brainly.com/question/16519513

#SPJ1

By use the similar slope triangles, the slope of segment AD, segment DF, and the line of m are all equal.

In Mathematics and Geometry, two (2) triangles are said to be similar when the ratio of their corresponding side lengths are equal and their corresponding angles are congruent.

Additionally, the lengths of corresponding sides or corresponding side lengths are proportional to the lengths of corresponding altitudes when two (2) triangles are similar and the slopes of side JL and side MP are equal;

Slope of segment AD = AB/BD

Slope of segment DF = DE/EF

Slope of line m = DE/EF = AB/BD

Read more on slope here: https://brainly.com/question/3814125

#SPJ1

Therefore, the probability that the mean of a sample of 55 families will be between 17 and 18 pounds is approximately 0.9251.

To apply the central limit theorem, we need to check if the sample size is sufficiently large. According to the theorem, if the sample size is greater than or equal to 30, the distribution of sample means will be approximately normal, regardless of the shape of the population distribution.

In this case, the sample size is 55, which is greater than 30, so we can assume that the distribution of sample means will be approximately normal.

Now, we can find the z-scores for the given values of the sample mean:

z1 = (17 - 17.2) / (2.5 / sqrt(55)) = -1.87

z2 = (18 - 17.2) / (2.5 / sqrt(55)) = 1.87

Using a standard normal distribution table or calculator, we can find that the probability of a z-score being between -1.87 and 1.87 is approximately 0.9251.

To know more about probability,

https://brainly.com/question/31872138

#SPJ11

The probability that the next puck Dave grabs will be green is 1/6 or approximately 0.167.

To determine the probability of Dave grabbing a green puck on the next grab, we need to calculate the probability based on the given data.

Given:

Number of red pucks = 4

Number of orange pucks = 3

Number of yellow pucks = 1

Number of pink pucks = 2

Number of green pucks = 2

Total number of pucks = 4 + 3 + 1 + 2 + 2 = 12 pucks

The probability of grabbing a green puck can be calculated as:

Probability = Number of green pucks / Total number of pucks

Probability = 2 green pucks / 12 pucks

Probability = 1/6

Know more about probability here;

https://brainly.com/question/32004014

#SPJ11

No, it is not possible to draw more than one triangle with side lengths of 5 inches and 7 inches and an included angle with a measure of 50 degrees.

In a triangle, the measure of an included angle between two sides determines the length of the third side. In this case, we have fixed side lengths of 5 inches and 7 inches, and an included angle of 50 degrees.

According to the Law of Sines, the ratio of the length of a side to the sine of its opposite angle is constant in a triangle. Using this law, we can calculate the length of the third side.

Let's denote the unknown side length as "x". Using the Law of Sines:

sin(50°) / 5 = sin(opposite angle) / x

We can solve this equation to find the value of x. However, it's important to note that there will be only one solution for x. This means that there is only one possible triangle that can be formed with the given side lengths and included angle measure.

No,it is not possible to draw more than one triangle with the given specifications.

For more questions on triangles, visit:

https://brainly.com/question/17335144

#SPJ11

To calculate the inductance L in the circuit, we can use the formula for the maximum current in an inductive circuit:

Imax = ΔVmax / (ωL)

where Imax is the maximum current, ΔVmax is the maximum voltage, ω is the angular frequency, and L is the inductance.

The inductance L is 0.15625 H (or 156.25 mH).

Given that Imax = 8.00 A, ΔVmax = 100 V, and ω = 80.0 Hz, we can rearrange the formula to solve for L:

L = ΔVmax / (Imax * ω)

Substituting the given values:

L = 100 V / (8.00 A * 80.0 Hz)

L = 0.15625 H (or 156.25 mH)

Know more about inductance here;

https://brainly.com/question/31127300

#SPJ11

Heuristics refers to rules of thumb that simplify the decision-making process. Heuristics are mental shortcuts that help individuals make decisions quickly, often relying on previous experience or intuition rather than a more systematic approach.

While heuristics can be useful, they can also lead to biases and errors in judgment if they are applied too broadly or without careful consideration. It is important to be aware of these heuristics and how they can affect decision-making processes, especially in complex or high-stakes situations where careful consideration is necessary.

The answer is C.

To learn more about Heuristics : brainly.com/question/29793101

#SPJ11

Answer:

To find the inverse function of f(x) = 4x + 12, we follow these steps:Replace f(x) with y: y = 4x + 12.Swap the variables x and y: x = 4y + 12.Solve for y in terms of x: y = (x - 12) / 4.Therefore, the inverse function of f(x) is f^-1(x) = (x - 12) / 4.Now, we can verify that f(f^-1(x)) = x and f^-1(f(x)) = x as follows:f(f^-1(x)) = f((x - 12) / 4) [substitute f^-1(x) into f(x)]

= 4((x - 12) / 4) + 12 [substitute (x - 12) / 4 into 4x + 12]

= x [simplify]Therefore, f(f^-1(x)) = x.f^-1(f(x)) = ((4x + 12) - 12) / 4 [substitute f(x) into f^-1(x)]

= x / 4 [simplify]Therefore, f^-1(f(x)) = x/4.Since f(f^-1(x)) = x and f^-1(f(x)) = x/4, we have verified that the inverse function of f(x) satisfies the conditions of an inverse function.

Step-by-step explanation:

The speed of the cyclist in still air is 13 mph

Let the speed of the cyclist in still air be x mph

when she rides with the wind her speed = (x + 3) mph

when she rides against the wind her speed = (x - 3) mph.

Mathematically we can represent the problem as:

16 / (x + 3) = 10 / (x - 3)

cross multiplying and simplifying

16 (x - 3) = 10 (x + 3)

16x - 48 = 10x + 30

6x = 78

x = 13

Learn more about speed of the wind at

https://brainly.com/question/29801913

#SPJ1

Because the two angles are complementary, the value of x must be 11.5

In the image we can see that the two given angles are complementary, which means that their measures add up to 90°, then we can write:

(7x - 5)° + (x + 3)° = 90°

Now we can solve that linear equation to find the value of x, we iwll get:

7x + x - 5 + 3 = 90

8x - 2 = 90

8x = 92

x = 92/8

x = 11.5

That is the value of x.

Learn more about complementary angles at:

https://brainly.com/question/16281260

#SPJ1

Answer:

D. 8+3g

Step-by-step explanation:

We know that Megan filled 1 large basket, L, with 8 green apples.

So L = 8.

We also know that she filled 3 small baskets, S, with the same amount of green apples, g.

This would mean that we could multiply the amount of green apples, g, with the amount of small baskets Megan filled to find the amount of apples Megan picked for the small baskets.

This would mean that S = 3*g. Which could be written also be written as  S = 3g.

We want to know how many apples Megan picked overall, so we would add the apples in the large basket and small baskets together to find the total, T.

This would be T = G + S. After plugging in [8] for G and [3g] for S, we would get [8+3g].

Answer: What are all of the Expressions that Represent how Many Apples Megan Picked in All?

Step-by-step explanation:

The expressions that represent how many apples Megan picked in all are:

b.) 8+g+g+g

d.) 8+3g

Expression (a) does not take into account the three small baskets of apples that Megan picked to give to her friends, so it is not correct. Expression (c) multiplies the number of apples in the first basket by the number of baskets Megan picked, but it does not take into account the number of apples in the other three baskets, so it is not correct.

Therefore, the correct expressions are (b) and (d), which count the apples in the large basket and the three small baskets.

{I Hope This Helps! :)}

Answer:

1 6.89+t=8

Step-by-step explanation:

Because she left 6.89 to pay for her food and a tip. So whatever the tip was plus the 6.89 she owed equaled $8.

The area of the sector created by a central angle of 60° in a circle with a diameter of 6 inches is approximately 4.7124 square inches.

To find the area of a sector of a circle, we need to know the central angle and the radius of the circle. In this case, we are given the central angle of 60° and the diameter of the circle, which we can use to find the radius.

The diameter is given as 6 inches, so the radius is half of that, which is 3 inches.

To calculate the area of the sector, we can use the formula:

Area of Sector = (θ/360°) * π * r²

where θ is the central angle in degrees, π is a mathematical constant approximately equal to 3.14159, and r is the radius.

Plugging in the values:

Area of Sector = (60°/360°) * π * (3)²

Area of Sector = (1/6) * 3.14159 * 9

Area of Sector ≈ 4.7124 square inches

Learn more about sector here:

https://brainly.com/question/30607726

#SPJ11

Answer:

16y^2-13y+6

Step-by-step explanation:

(2y-3)(3y-2)

you have to expand the brackets

to do this you have to times each expression by the other bracket

2y×3y=6y^2

2y×-2=-4y

-3×3y=-9y

-3×-2=6

if you put these together u get:

6y^2-4y-9y+6

because there are two pairs containing y we can simplify this

-4y-9y=-13y

so the answer is

6y^2-13y+6

[tex]6y^{2}-13y+6[/tex]

[tex](2y-3)(3y-2)=\\2y(3y-2)-3(3y-2)[/tex]

[tex]6y^{2}-4y-3(3y-2)\\6y^{2} -4y-9y+6[/tex]

[tex]6y^{2} -4y-9y+6=\\6y^{2}-13y+6[/tex]

So the answer  [tex](2y-3)(3y-2)[/tex] is [tex]6y^{2}-13y+6[/tex]

I hope this helped, if it displeased tell me what I did wrong so I can possibly fix it ૮ ˶ᵔ ᵕ ᵔ˶ ა

Answer: y = 2(x + 2)² - 5

Step-by-step explanation:

          We are going to use the completing the square method to transform this quadratic equation from standard form to vertex form.

Given:

     y = 2x² + 8x + 3

Factor the 2 out of the first two terms:

     y = 2(x² + 4x) + 3

Add and subtract [tex]\frac{b}{2} ^2[/tex]:

     y = 2(x² + 4x + 4 - 4) + 3

Distribute the 2 into -4 and combine with the 3:

     y = 2(x² + 4x + 4) - 5

Factor (x² + 4x + 4):

     y = 2(x + 2)² - 5

Answer:

Step-by-step explanation:

Listen I don't know but good luck listen to AutoGraph

and my latest song The Light

999 Forever

To estimate the required sample size for a pharmaceutical company developing a new drug, we need to consider the proportion of effectiveness, desired margin of error, and confidence interval. Therefore, approximately 1846 patients should be included in the sample to achieve the desired margin of error for a 98% confidence interval.

To estimate the proportion better, the pharmaceutical company needs to increase their sample size until the margin of error is less than 0.005 for a 98% confidence interval. The margin of error is the amount of error that is allowed in a study and is determined by the sample size. The larger the sample size, the smaller the margin of error.
To calculate the sample size, we can use a formula that includes the level of confidence, margin of error, and the estimated proportion. Since the drug was found to be 80% effective, we can use this as our estimated proportion.
The formula to calculate the sample size is:
n = (Z^2 * p * q) / E^2
where n is the sample size, Z is the z-score corresponding to the desired level of confidence (2.33 for 98% confidence interval), p is the estimated proportion (0.8), q is 1-p (0.2), and E is the desired margin of error (0.005).
Plugging in the values, we get:
n = (2.33^2 * 0.8 * 0.2) / 0.005^2
n = 23474.4
Rounding up to the nearest whole number, the pharmaceutical company should sample at least 23475 patients to achieve a margin of error less than 0.005 for a 98% confidence interval.
To estimate the required sample size for a pharmaceutical company developing a new drug, we need to consider the proportion of effectiveness, desired margin of error, and confidence interval. In this case, the drug is 80% effective, and the company wants a margin of error less than 0.005 for a 98% confidence interval.
To calculate the sample size, we use the formula for sample size estimation in proportion:
n = (Z^2 * p * (1-p)) / E^2
where n is the sample size, Z is the Z-score corresponding to the desired confidence interval, p is the proportion of effectiveness (0.8 in this case), and E is the desired margin of error (0.005).
For a 98% confidence interval, the Z-score is approximately 2.33. Plugging the values into the formula:
n = (2.33^2 * 0.8 * (1-0.8)) / 0.005^2
n ≈ 1846
Therefore, approximately 1846 patients should be included in the sample to achieve the desired margin of error for a 98% confidence interval.

To know more about Proportion visit:

https://brainly.com/question/29474065

#SPJ11

Answer:

Step-by-step explanation:

See image

Answer: 4.80

Step-by-step explanation:

The amount of money that Little Squeezer will pay Tony if he delivers 11 pizzas would be =$81

From the table given, without the delivery of pizza, the salary of Tony = $48

For every additional two pizza, $6 is being added. That is;

2 pizzas = $54

4 pizzas = 54+6 = $60

Therefore for every 1 pizza is = $3 to his salary.

That is, 11 pizzas = 78+3 = $81

Therefore,the amount of money that Little Squeezer will pay Tony when a total of 11 pizzas are delivered would be = $81.

Learn more about cost price here:

https://brainly.com/question/26008313

#SPJ1

The graph shows that Addison drives away from home, reaches a maximum distance of 20 blocks away from home, and then drives back home, arriving at the same distance of 0 blocks away from home.

A graph of Addison's distance from her home over time, we can plot time on the x-axis and distance on the y-axis.

Here's a step-by-step process to create the graph:

Start by drawing the x-axis and labeling it "Time (minutes)".

Mark the minimum value as 0 and the maximum value as 24 (7 + 5 + 6 + 7 + 7 = 32 minutes total, but we only need to plot until Addison gets home).

Draw the y-axis and label it "Distance from Home (blocks)".

Mark the minimum value as 0 and the maximum value as 13 (7 blocks to the store + 6 blocks to the bank).

Plot Addison's starting point, which is at (0,0).

Addison drives to the store at a speed of 2 blocks per minute, so after 7 minutes she is 14 blocks away from home (7 minutes × 2 blocks/minute = 14 blocks). Plot a point at (7, 14).

Addison stops at the store for 5 minutes, so her distance from home doesn't change during that time.

Draw a horizontal line from the point at (7,14) to (12,14).

Addison drives from the store to the bank at a speed of 3 blocks per minute, so it takes her 2 minutes to travel 6 blocks (6 blocks / 3 blocks/minute = 2 minutes).

After 12 minutes total (7 minutes to the store + 5 minutes at the store), she is 20 blocks away from home (14 blocks + 6 blocks). Plot a point at (12, 20).

Addison stops at the bank for 7 minutes, so her distance from home doesn't change during that time.

Draw a horizontal line from the point at (12,20) to (19,20).

Drives from the bank to home at a speed of 5 blocks per minute, so it takes her 2.6 minutes to travel 13 blocks (13 blocks / 5 blocks/minute = 2.6 minutes).

After 19 minutes total (7 minutes to the store + 5 minutes at the store + 6 minutes to the bank + 1 minute waiting at the bank), she is 13 blocks away from home (20 blocks - 13 blocks). Plot a point at (19,13).

Addison arrives home after 24 minutes (7 minutes to the store + 5 minutes at the store + 6 minutes to the bank + 7 minutes at the bank + 2.6 minutes driving home).

Draw a point at (24,0) to represent her arrival home.

Connect the points with a line to complete the graph:

Distance from Home

    ^

13 _|                •

   |                    |‾‾‾•‾‾‾‾‾‾

12 _|                |     /

   |                    |    /

11 _|                 |   /

   |                    |  /

10 _|                | /

   |                    |/

 9 _|_ ___ _ _|_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

    0               7 12         19                   24    → Time

For similar questions on Addison

https://brainly.com/question/30011643

#SPJ11

Answer: The circumference of a circle is given by the formula:

C = πd

where d is the diameter of the circle. In this case, the diameter of the wheels is 28 inches, so the circumference of each wheel is:

C = π(28) = 28π inches

To find how many revolutions the wheels need to make to travel 200 feet, we need to convert 200 feet to inches, and then divide by the circumference of each wheel. There are 12 inches in 1 foot, so 200 feet is equal to:

200 feet × 12 inches/foot = 2400 inches

Dividing 2400 inches by the circumference of each wheel, we get:

2400 inches ÷ (28π inches/revolution) ≈ 85.3 revolutions

Therefore, the car's wheels need to make approximately 85.3 full revolutions to travel 200 feet. Since the question asks for the number of full revolutions, we can round down to the nearest whole number to get:

Answer: D. 88 revolutions.

The tangential component is 4t/(3 + 12t^2)(1 - t^2)i + 8t^2/(3 + 12t^2)j and the normal component is (-12t)/(3 + 12t^2)(1 - t^2)i + [24(3 + 4t^2)]/(3 + 12t^2)j.

We can start by finding the velocity and acceleration vectors:

r(t) = 2(3t - t^3)i + 6t^2j

v(t) = dr/dt = 6(1 - t^2)i + 12tj

a(t) = dv/dt = -12ti + 24j

To find the tangential and normal components of the acceleration vector, we need to project it onto the velocity vector. Let's call the tangential component aT and the normal component aN. Then:

aT = projv a = (a ⋅ v/|v|^2)v = [(0)(6(1 - t^2)) + (24)(12t)]/[(6(1 - t^2))^2 + (12t)^2](6(1 - t^2)i + 12tj)

aT = (24t)/(36 + 144t^2)(6(1 - t^2)i + 12tj)

aT = 4t/(3 + 12t^2)(1 - t^2)i + 8t^2/(3 + 12t^2)j

To find the normal component, we subtract the tangential component from the acceleration vector:

aN = a - aT

aN = (-12t)i + 24j - [4t/(3 + 12t^2)(6(1 - t^2)i + 12tj)]

aN = (-12t)/(3 + 12t^2)(1 - t^2)i + [24(3 + 4t^2)]/(3 + 12t^2)j

Learn more about velocity at: brainly.com/question/30559316

#SPJ11