Scientists were interested in testing a new technique to prevent slipping on ice: wearing socks over boots!
500
500500 volunteers were randomly assigned to two groups. Both groups were asked to walk downhill on an icy road. One group simply wore boots, while the other group wore socks over their boots. All boots and socks were supplied by the scientists.
Once downhill, the participants were asked to indicate the number of times they slipped. Then, the scientists compared the average "slipperiness" score of each group.
What type of statistical study did the scientists use?

Answer:

8,8 is correct answer please Like me

Answer:

Step-by-step explanation:

scale factor=4

Answer:

  (b)  Both vertical and horizontal reflection

Step-by-step explanation:

The figure will be a horizontal reflection of itself about any vertical line through two of the smaller 6-pointed stars.

The figure will be a vertical reflection of itself about any horizontal line through two of the smaller 6-pointed stars.

  the pattern has both vertical and horizontal reflection

__

Additional comment

A pattern will have horizontal reflection if there exists a vertical line about which the pattern can be reflected to itself. That is, there exists one (or more) vertical lines of symmetry.

Similarly, the pattern will have vertical reflection if there is a horizontal line about which the pattern can be reflected to itself. Such a line is a horizontal line of symmetry.

Take into account the following property:

Then, for the given expression you have:

Hence, the answer is approximately 3.322

He argues that teachers and administrators often label students based on their behavior, appearance, or other factors, which can have a profound impact on students' self-perceptions and future opportunities.

Theoretical perspectives are perspectives that sociologists use to help them better understand and explain human social behavior.

These perspectives encompass various theories and approaches to the study of education.

The following is an overview of three major theoretical perspectives and their associated classic studies of education:

Functionalism perspective

The functionalist perspective is a theoretical approach that views society as a complex system composed of various parts that work together to maintain social order.

Functionalism is also known as structural functionalism.

According to functionalists, education plays an important role in society by providing students with necessary skills and knowledge to become productive members of society.

Classic study of education:

Durkheim's study of education in "The Division of Labor in Society."

In this classic study, Durkheim argues that education serves a crucial function in socializing young people into shared cultural values, beliefs, and norms.

According to symbolic interactionists, education is a process of social interaction in which students learn to make sense of the world around them.

Classic study of education: Becker's study of labeling in "Becoming a Marijuana User.

"In this classic study, Becker demonstrates how schools play an important role in shaping student identities.

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The difference of the given function is 245 or 235, depending on how the expression is interpreted.

To find and simplify the difference of the function f(x) = 312 - 72 - 5, we need to perform the arithmetic operations in the given expression.

First, let's simplify the subtraction inside the parentheses:

72 - 5 = 67

Now, we can substitute this simplified value back into the expression:

f(x) = 312 - 67

Next, we perform the subtraction:

312 - 67 = 245

Therefore, the difference of the function f(x) = 312 - 72 - 5 is 245.

It's important to note that in the given expression, there seems to be a redundancy in the subtraction operation. The expression "312 - 72 - 5" is equivalent to "312 - (72 + 5)" since subtraction is associative. Therefore, the simplified expression would be "312 - 77", which results in the same value of 235.

In summary, the difference of the given function is 245 or 235, depending on how the expression is interpreted.

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Answer:

C

Step-by-step explanation:

Simply substitute the equations f(x) and g(x) for f and g.

(4x+1)-(\(x^{2}\)-5)

4x+1-\(x^{2}\)+5

Do some rearranging and:

\(-x^{2}\)+4x+6

Hope this helped!

The system of inequalities that represents the number of quarters, x, and the number of dimes, y, that Mai could have is given by:

x + y ≥ 10 and 0.25x + 0.1y < 2

These are the two systems of inequalities that represent the number of quarters, x, and the number of dimes, y, that Mai could have.

Let x be the number of quarters and y be the number of dimes that Mai has. Then, the system of inequalities can be represented as:

Thus, the first inequality is x + y ≥ 10.

Also, Mai has less than $2.00, therefore, the second inequality is 0.25x + 0.1y < 2. The value of x and y are assumed to be non-negative integers.+

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Felipe's age is ≥ 5

Step-by-step explanation:

Difference of F's age and 4: f - 4

Twice: 2 (f -4) ≥ 2

2f - 8 ≥ 2

2f ≥ 10

f ≥ 5

Answer:

Step-by-step explanation:

Answer:

c = 55

Step-by-step explanation:

I would solve this by cross multiplying, but some teachers don't appreciate you skipping a step like that. Instead:

\(\frac{5}{2} =\frac{c}{22}\)

First, multiply both sides by 2:

\(5=\frac{2c}{22}\)

Then, multiply both sides by 22:

\(2c=110\)

Now, just solve for c by dividing both sides by 2:

\(c=55\)

Answer:

C = 55

Step-by-step explanation:

To figure out c you must first isolate c so there shouldn't be any other numbers or signs (addition, subtraction, division, and multiplication) on the same side of the equal sign as variable C.

The inverse of dividing 22 is multiplying 22 on both sides of the equation.

You would get 22/1 * 5/2 = C. 22 * 5 is 110 and 1 * 2 is still 2 so 110/2 = C.

Enter 110/2 into the calculator and you would get C = 55

The value of $×$ is 3.14 units

Perimeter is the distance around the edge of a shape. The algebraic sum of the length of each side is the perimeter of that shape. We have formulas available for the various shapes in geometry.

The perimeter of a square is expressed as 4l

The circumference of a circle = 2πr

This means that;

4l = 2πr

4l = 2× 3.142 × 2

4l = 12.57

divide both sides by 4

l = 12.57/4

l = 3.14 units(nearest hundredth)

therefore the value of the side length is 3.14 units

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Answer:

3600

Step-by-step explanation:

5 * 5 = 1

5 * 2 = 10

.

.

.

600 * 6 = 3600

Answer:

x = 5 ; y = 14

Step-by-step explanation:

2x = 10

x = 5

y + 2 = 16

y = 14

The gas station serves 16 vehicles per hour, and 72 vehicles arrive in 4 hours. The vehicles will spend 4.50 hours at the gas station.



To find the total time the vehicles will spend at the gas station, we need to calculate the total number of vehicles that arrive and then divide it by the rate at which the gas station serves vehicles.

Given:

Arrival rate: 18 vehicles per hour

Service rate: 16 vehicles per hour

Time: 4 hours

First, let's calculate the total number of vehicles that arrive during the 4-hour period:

Total number of vehicles = Arrival rate * Time

                      = 18 vehicles/hour * 4 hours

                      = 72 vehicles

Since the gas station can serve 16 vehicles per hour, we can determine the time it takes to serve all the vehicles:

Time to serve all vehicles = Total number of vehicles / Service rate

                         = 72 vehicles / 16 vehicles/hour

                         = 4.5 hours

Therefore, the vehicles will spend 4.5 hours at the gas station. Rounded to 2 decimal places, the answer is 4.50 hours.

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Answer:

5

Step-by-step explanation:

Answer:

5

Step-by-step explanation:

correct on eduinity

Answer:

1 makes 7 people full, 3 makes 5 people full

Step-by-step explanation:

1) A=b*h=33(22)=726 square inches. Would make 7 people full.

3)A=b*h=20(25)=500 square inches. Would make 5 people full

Answer:

D. x2 = 52 + 32 – 2(5)(3)cos(140°)

Step-by-step explanation:

The equation measures the cyclist's distance, x, from the starting point will be x²=5²+3²-2(5)(3)cos(140°). Option B is corect.

Distance is a numerical representation of the distance between two objects or locations.

The distance can refer to a physical length or an estimate based on other factors in physics or common use. |AB| is a symbol for the distance between two points A and B.

Distance is measured in the meter, centimeter, miles, nautical mile, feet, etc. The unit of distance is most important to find it.

The distance, x, from the starting point is;

From the cos law ;

x² = a² +b²-2ab cosΘ

From the digrame it is obtained that;

a =5

b =3

Θ = 180 ° +70° -30°

Θ = 180°- 40°

Θ = 140°

Substitute the values;

x² = a² +b²-2ab cosΘ

x²=5²+3²-2(5)(3)cos(140°)

The equation measures the cyclist's distance, x, from the starting point will be x²=5²+3²-2(5)(3)cos(140°).

Hence option B is corect.

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a) X'Y' + X'Y + XY simplifies to X' + Y.

b) A'BC' + ABC' + BC'D simplifies to BC'.

Complement of the functions:

a) Complement is W' + X' + YZ.

b) Complement is (A' + B + C)(A'B' + C' + A'B).

a) To prove X'Y' + X'Y + XY = X' + Y, we can use Boolean algebra identities:

X'Y' + X'Y + XY

= Y'(X' + X) + XY(Distributive Law)

= Y' + XY(X + X' = 1)

= X' + Y(Commutative Law)

Therefore, X'Y' + X'Y + XY simplifies to X' + Y.

b) To prove A'BC' + ABC' + BC'D = BC', we can simplify the expression using Boolean algebra:

A'BC' + ABC' + BC'D

= BC'(A' + A) + BC'D   (Distributive Law)

= BC' + BC'D(A + A' = 1)

= BC'(BC' + BC'D = BC' + BC'(1) = BC')

Hence, A'BC' + ABC' + BC'D simplifies to BC'.

Complement of the given functions:

a) The complement of WX(Y'Z + YZ') + W'X'(Y' + Z)(Y + Z') is W' + X' + YZ.

b) The complement of (A + B' + C')(A'B' + C)(A + B'C') is (A' + B + C)(A'B' + C' + A'B).

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Answer: 3/4x

Step-by-step explanation:

I’m order to get the right answer it should be

y1 - y2 — 2- -4 = 6

x1 - x2 — 4 - -4 = 8

Now to get 6/8 to the simplest form, divide it by two which should give you 3/4

The length of the tape needed to attach around the edge of a circular landing pad with a radius of 20 meters is approximately 125.66 meters.



To find the length of the tape needed, we can use the formula for the circumference of a circle, which is given by C = 2πr, where C represents the circumference and r is the radius of the circle. In this case, the radius is 20 meters. Plugging in the values, we get C = 2π(20) = 40π meters.

To find the actual numerical value, we can approximate the value of π to 3.14159. Therefore, the length of the tape required would be approximately 40π ≈ 40(3.14159) ≈ 125.66 meters.

So, the measurement closest to the length of the tape needed is approximately 125.66 meters.

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We are given the following expression:

The general solution is of the form:

The first, number is the first solution to the expression which is:

Therefore, the solution is:

The other possible solution is:

Therefore, the other possible solution is:

Answer:

b plz mrk brainly

Step-by-step explanation:

Answer:

The correct answer is B. 20,000

Step-by-step explanation:

To determine the man's total monthly salary, we can set up a simple equation using the given information. Let's denote the total monthly salary as "x."

According to the information provided, 33% of the man's monthly salary is equal to Birr 6600. We can express this relationship mathematically as:

0.33x = 6600

To solve for "x," we need to isolate it on one side of the equation. We can do this by dividing both sides of the equation by 0.33:

x = 6600 / 0.33

Evaluating the right side of the equation gives:

x ≈ 20,000

Therefore, the man's total monthly salary is approximately Birr 20,000.

Hence, the correct answer is B. 20,000.

The surge tank is a vital component of a system in which the flow rate fluctuates significantly. The flow rate entering the tank varies significantly, causing the fluid level in the tank to fluctuate as a result of the compressibility of the liquid. The surge tank is utilized to reduce pressure variations generated by a rapidly fluctspace uating pump flow rate. To determine the matrices A,B,C, and D using state-space notation, here are the steps:State representation is given by:dx/dt = Ax + Bu; y = Cx + DuWhere: x represents the state variablesA represents the state matrixB represents the input matrixC represents the output matrixD represents the direct transmission matrixThe equation can be written asA = [ -1/R₁ 0; 1/R₁ -1/R₂]B = [1/A₁; 0]C = [0 1/R₂]D = 0Thus, the matrices A,B,C and D assuming that the level deviations are the state variables: h'₁ and h'₂. The input variable is q'ᵢ, and the output variable is the flow rate deviation, q'₂ are given by A = [ -1/R₁ 0; 1/R₁ -1/R₂]B = [1/A₁; 0]C = [0 1/R₂]D = 0.Hence, the required matrices are A = [ -1/R₁ 0; 1/R₁ -1/R₂], B = [1/A₁; 0], C = [0 1/R₂], and D = 0 using state-space notation for the given system of equations for two liquid surge tanks.

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The solution to the questions regarding correlation between variables are :

The correlation coefficient (r) is used to determine the strength of relationship between variables.

The price of hamburger and soda shows a strong positive association. This can be infered from the value of the correlation coefficient which is positive and above 0.5

The line equation is written in the form y = mx + b

soda price , x = $7.6

Hamburger price , y = ?

y = 0.72(7.6) + 2.03

y = 6.93

Hence, Cost of hamburger would be $6.93

I don't agree with Sydney's thinking because correlation only evaluates relationship between variables using data provided. There may be many factors which could have caused a certain phenomenon.

However, correlation does not infer causation. Therefore, Sydney is wrong.

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Answer:

1) 4

2) 12

3)AB

Step-by-step explanation:

1) AC is 8, and since it bisects it is cut in 2

2) With the Pythagorean theorem, we know that side a² x side b² = side c²

so 4² x 9² = c² aka 16x9 = 144

square root bla bla, 12

3) as explained in 1) , it got cut into two, so AB = BC

Answer:

The measure of angle C is 46.

Step-by-step explanation:

In a triangle, all angles add up to 180. So the simple formula for that is:

m∠A + m∠B + m∠C = 180.

Substitute the values given into the equation.

102 + 32 + m∠C = 180

Combine like terms.

134 + m∠C = 180

Subtract 134 from both sides.

m∠C = 46.

Answer:

46

Step-by-step explanation:

180-102+32

180-134

46

All angles of a triangle add up to 180, so you would add up the given angles and subtract them by 180. I hope you found this useful!

Answer:

its c

Step-by-step explanation:

think about it for a second

Answer:

\(y=2(\frac{1}{3})^x\)

Step-by-step explanation:

Let the equation of the given exponential function is,

y = a(b)ˣ

Graph of the given exponential function passes through (0, 2) and (-1, 6)

For a point (0, 2),

2 = a(b)⁰

a = 2

For another point (-1, 6),

6 = 2(b)⁻¹

3 = b⁻¹

b = \(\frac{1}{3}\)

Therefore, equation of the exponential function will be,

\(y=2(\frac{1}{3})^x\)

The fraction of stars in the milky way having an earth-size planet in the habitable zone are around 10-20%.

Milky way is the galaxy comprising our solar system and therefore marking Earth's location in the universe. The milky way galaxy is just one among billions of different galaxies in the universe.

It contains numerous stars and the planets revolving it. Thus, the milky way galaxy can said to contain thousands of planetary systems. The planets in turn can be habitable or non-habitable owing to atmospheric conditions.

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