Genoude towing test at the 0.10 vel tance by temperative contested to Put Assure at the comptes were obland de condendy ang simple random samping Test whether PPSample data are 30, 256, 38, 31 (a) Determine the rulanternative hypotheses. Choose the correct answer below OAH, versus H P = 0 OCH PD, versus HDD) OBH PP, VOUS HP) OD HIPP versus HDP (b) The fest statistics found to two decimal places as needed (c) The P values Round to three decimal places as needed) Test meil hypothesis. Choose the correct condusion below OA Roth null hypothesis because there is not suit evidence to conclude that, (b) The test statistic Zo is (Round to two decimal places as needed.) (c) The P-value is (Round to three decimal places as needed.) Test the null hypothesis. Choose the correct conclusion below. O A. Reject the null hypothesis because there is not sufficient evidence to conclude that p, p2. OC. Do not reject the null hypothesis because there is not sufficient evidence to conclude that p, #P2. OD. Reject the null hypothesis because there is sufficient evidence to conclude that p, p2.

Answer:

1921.67

1922 to the nearest whole number

Step-by-step explanation:

Cylinder

V = pi*r^2 * h

pi = 3.14

r = d/2

r = 12/2

r = 6

h = 13

V = 3.14 * 6^2 * 13

V = 1469.52

1/2 Sphere

V= 2/3 * pi * r^3

r = 6

pi = 3.14

V = (2/3) 3.14 * 216

V = 452.2

Total Volume

V_tot = 452.2 + 1469.52

V_tot = 1921.67

The coordinate of the point that represents the number of pens that Keisha buys and the total cost is (2, 4)

The given parameters are

Number of pen = 2

Unit price = $2

This means that the total amount spent is

Total amount = Number of pen * Unit price

Evaluate the product

Total amount = 2 * 2

Evaluate the product

Total amount = 4

So, the coordinate of the point that represents the number of pens that Keisha buys and the total cost is (2, 4)

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Answer:

5

Step-by-step explanation:

Answer:

5 centimeters

Step-by-step explanation:

You have to look at where it says 2 inches, and follow the line up to where the red stops and see how many centimeters it crosses

Answer:

k = -5

Step-by-step explanation:

Slope of a line is given by

\(\dfrac{y_2 - y_1}{x_2-x_1}\)

where (x₁, y₁) and (x₂, y₂) are two points on the line

This is commonly referred to as rise/run

Given two points(0, k) and (1,4) and told that the slope is 9 we get

\(9 = \dfrac{4-k}{1-0}\\\\9 = \dfrac{4-k}{1}\\\\9 = 4 -k\\\\\text{Subtract 5 from both sides to get }\\9 - 4 = 4 - 4 - k\\\\5 = -k\\\\ k = - 5\\\\\)

The approximate percent increase in consumption from 1986 to 1997 is:

B. 20%

The initial consumption level for the year, 1986 is 62 million barrels per day and by 1997, the percent increase in consumption shot up to 74 million barrels per day.

When we subtract the latter consumption levels from the former, we will have a total of 12 million barrels per day. So, the percentage increase will be:

12 million barrels per day/ 62 million barrels per day × 100

= 19.35 %

Thus, we can arrive at the conclusion that the total consumption levels per day increased by 19.35%, which is approximately 20%.

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The minimum value is 0.5 and the maximum value is 3.5.

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The length of the diagonal of the square is 7.07

We are given that;

The square of side=5

Now,

To find the length of the diagonal of a square, we can use the Pythagorean theorem, which states that:

a²+b²=c²

where a and b are the lengths of the legs of a right triangle and c is the length of the hypotenuse.

The diagonal of the square is the hypotenuse of a right triangle with legs of length 5. Hence, we can plug in the values and solve for c:

5²+5²=c²

25+25=c²

50=c²

c=50​

we can approximate the value of c as:

c≈7.07

Therefore, by Pythagoras theorem the answer will be 7.07.

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Answer:

800 roller coasters

Step-by-step explanation:

120/x = 15/100

120/x=15 x 8/100 x8

120/x = 120/800

x=800

Answer:

(0,-0)

Step-by-step explanation:

P(0,0)=P(0,-0)

1.  x² - 5x - 16 can be written as (x - 8)(x + 2).

2. 6an² - 3b²n² = n²(6a - 3b²).

3. This expression represents a perfect square trinomial, which can be factored as (2x - y)².

4. Combining like terms, we get -n³ - n² + n + 1 = -(n³ + n² - n - 1).

5. 17x³y⁴z⁶ = (x²y²z³)².

6. 12a²b³ = (2a)(6b³) = 12a6b³ = 12a⁷b³x⁶.

Let's simplify the given expressions:

Simplifying x² - 5x - 16:

To factorize this quadratic expression, we look for two numbers whose product is equal to -16 and whose sum is equal to -5. The numbers are -8 and 2.

Therefore, x² - 5x - 16 can be written as (x - 8)(x + 2).

Simplifying 6an² - 3b²n²:

To simplify this expression, we can factor out the common term n² from both terms:

6an² - 3b²n² = n²(6a - 3b²).

Simplifying 4x² - 4xy + y²:

This expression represents a perfect square trinomial, which can be factored as (2x - y)².

Simplifying n + 1 - n³ - n²:

Rearranging the terms, we have -n³ - n² + n + 1.

Combining like terms, we get -n³ - n² + n + 1 = -(n³ + n² - n - 1).

Simplifying 17x³y⁴z⁶:

To simplify this expression, we can divide each exponent by 2 to simplify it as much as possible:

17x³y⁴z⁶ = (x²y²z³)².

Simplifying 12a²b³:

To simplify this expression, we can multiply the exponents of a and b with the given expression:

12a²b³ = (2a)(6b³) = 12a6b³ = 12a⁷b³x⁶.

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Answer:

Red can

Step-by-step explanation:

Tonato juice come in different sizes

The red can contains 6 cups

The blue can contains 2 pints

The yellow can contains 32 fluid ounces

Therefore the can that holds the highest juice is the red can with 6 cups if tomato juice

The logarithmic mean of the temperature difference, the length of the heat exchanger, the efficiency of the exchanger, and the length of the heat exchanger for the parallel type to solve the problem.

A food liquid with a specific temperature of 4 kJ / kg m, flows through an inner tube of a heat exchanger. If the liquid enters the heat exchanger at a temperature of 20 ° C and exits at 60 ° C, then the flow rate of the liquid is 0.5 kg / s.

The heat exchanger enters in the opposite direction, hot water at a temperature of 90 ° C and a flow rate of 1 kg. / a second.

Specific heat of water is 4.18 kJ/kg/m.

The following are the steps to calculate the different values.

Calculation of the temperature of the water leaving the heat exchangerWe know that

Q(food liquid) = Q(water) [Heat transferred by liquid = Heat transferred by water]

Here, m(food liquid) = 0.5 kg/s

ΔT1 = T1,out − T1,in

= 60 − 20

= 40 °C [Temperature difference of food liquid]

Cp(food liquid) = 4 kJ/kg

m [Specific heat of food liquid]m(water) = 1 kg/s

ΔT2 = T2,in − T2,out

= 90 − T2,out [Temperature difference of water]

Cp(water) = 4.18 kJ/kg

mQ = m(food liquid) × Cp(food liquid) × ΔT1

= m(water) × Cp(water) × ΔT2

Q = m(food liquid) × Cp(food liquid) × (T1,out − T1,in)

= m(water) × Cp(water) × (T2,in − T2,out)

0.5 × 4 × (60 − 20) = 1 × 4.18 × (90 − T2,out)

6 × 40 = 4.18 × (90 − T2,out)

240 = 377.22 − 4.18T2,out4.18T2,out

= 137.22T2,out

= 32.80 C

Calculation of the logarithmic mean of the temperature difference

ΔTlm = [(ΔT1 − ΔT2) / ln(ΔT1/ΔT2)]

ΔTlm = [(60 − 20) − (90 − 32.80)] / ln[(60 − 20) / (90 − 32.80)]

ΔTlm = 27.81 C

Here, Ui = 2000 W/m²°C [Total average heat transfer coefficient]

D = 0.05 m [Inner diameter of the heat exchanger]

A = πDL [Area of the heat exchanger]

L = ΔTlm / (UiA) [Length of the heat exchanger]

A = π × 0.05 × L

= 0.157 × LΔTlm

= UiA × L27.81

= 2000 × 0.157 × L27.81

= 314 × L

Length of the heat exchanger, L = 0.0888 m

Here, m(food liquid) = 0.5 kg/sCp(food liquid) = 4 kJ/kg m

ΔT1 = 40 °C

Qmax = m(food liquid) × Cp(food liquid) × ΔT1

Qmax = 0.5 × 4 × 40

= 80 kJ/s

Efficiency, ε = Q / Qmax

ε = 6 / 80

= 0.075 or 7.5 %

We know that U = 2000 W/m²°C [Total average heat transfer coefficient]

D = 0.05 m [Inner diameter of the heat exchanger]

A = πDL [Area of the heat exchanger]

m(water) = 68/60 kg/s

ΔT1 = 40 °C [Temperature difference of food liquid]

Cp(water) = 4.18 kJ/kg m

ΔT2 = T2,in − T2,out

= 75 − 35

= 40 °C [Temperature difference of water]

Q = m(water) × Cp(water) × ΔT2 = 68/60 × 4.18 × 40

= 150.51 kW

Here, Q = UA × ΔTlm

A = πDL

A = Q / (U × ΔTlm)

A = (150.51 × 10³) / (2000 × 35.29)

A = 2.13 m²

L = A / π

D= 2.13 / π × 0.05

= 13.52 m

The given problem is related to heat transfer in a heat exchanger. We use different parameters such as the temperature of the water leaving the heat exchanger, the logarithmic mean of the temperature difference, the length of the heat exchanger, the efficiency of the exchanger, and the length of the heat exchanger for the parallel type to solve the problem.

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The missing words used to complete the paragraph contained in the statement are listed below:

Algebraic expressions are open propositions represented by equations, which can be constants, variables and operators, some or all of them. Open propositions are propositions with one or more possible answers (i.e. equations, inequalities), that is, offers multiple possibilities of truth values.

Hence, the complete paragraph is shown below:

Algebraic expressions describe a equation. They can be as simple as a number, or they can include a combination of numbers, variables and symbols.

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Answer: 14

Step-by-step explanation:

Answer:

Any value of x makes the equation true.

All real numbers

Interval Notation:

(−∞,∞)

Step-by-step explanation:

Answer:

x=0

Step-by-step explanation:

8x+11=2(4x-7)+25

8x+11=8x-14+25

8x+11=8x+11

8x-8x=11-11

x=0

When selecting a single score from a population with a mean of 100 and a standard deviation of 20, we can expect, on average, the selected score to be approximately 20 units away from the population mean.

The population mean (μ) is a measure of the average or central tendency of the population, while the population standard deviation (σ) is a measure of the variability or spread of the scores in the population. In this case, the population mean is 100 and the population standard deviation is 20.

When we select a single score from the population, we can expect it to be, on average, close to the population mean. This is because the population mean represents the center or average value of the population.

The standard deviation provides us with a measure of the dispersion or spread of scores around the mean. A standard deviation of 20 indicates that the scores in the population tend to deviate from the mean by an average of 20 units.

Considering that the standard deviation represents the average distance between individual scores and the mean, we can conclude that, on average, a single score selected from the population would be approximately 20 units away from the population mean.

However, it is important to note that this is a probabilistic statement. While the average distance between individual scores and the mean is expected to be 20 units, there will be some scores that are closer to the mean and others that are further away.

The distribution of scores in the population follows a bell-shaped curve (assuming a normal distribution), and the majority of scores will fall within a few standard deviations from the mean.

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Note the full question is A population has μ = 100 and σ = 20. If you select a single score from this population, on the average, how close would it be to the population mean? Explain your answer.

The 90% confidence interval for the mean height of students at UH is (5.885,5.915) feet.

We have given that, an srs of 28 students at UH gave an average height of 5.9 feet and a standard deviation  of 0.1 feet.

i.e n = 28

x = 5.9 feet

s = 0.1 feet

and we have to construct a 90% confidence interval for the mean height of students at UH.

The level of significance, α = 1 - 0.9 = 0.1

The value of 0.9 in z-table is 0.816.

The formula for confidence interval is,

CI = x ± z* (s/\(\sqrt{n}\))

Substituting the values,

CI = 5.9 ± (0.816) (0.1/√28 )

   = 5.9 ± (0.816)(0.1/5.291)

   = 5.9 ± (0.816)(0.0189)

CI = 5.9 ± 0.015

CI = 5.9 + 0.015 = 5.915

CI = 5.9 - 0.015 = 5.885

Therefore 90% confidence interval for the mean height of students at UH is 5.885 feet to 5.915 feet.

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Answer:

B.$104

Step-by-step explanation:

EDGE 2021

Answer:

b

Step-by-step explanation:

The value of x is -7 and BC || DE.

Given in the question is that:

The coordinates are:

B(17, 5), C(11, -3), D(-1,2), and E(x,-6)

Also, BC || DE.

to find the value of x.

Now, According to the question:

B(17, 5), C(11, -3), D(-1,2), and E(x,-6)

BC = (11 - 17 , -3-5)

BC = (-6, -8)

DE = (x + 1 , -6 -2)

DE = (x + 1, -8)

In "||" Cross multiplication and subtract :

Because BC || DE.

BC = (-6, -8) and DE = (x + 1, -8)

-6 x (-8) - (8 x -8) = 0

48 + 8x +8 = 0

8x = -56

x = -7  

Hence, The value of x is -7 and BC || DE.

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The real area of the terrace is 300 square meters. If the scale of the drawing is 1:200, it means that 1 cm on the drawing represents 200 cm in real life. Therefore, to find the real dimensions of the terrace.

We need to multiply the dimensions on the drawing by 200.

The length of the terrace in real life is:

7.5 cm x 200 = 1500 cm

The width of the terrace in real life is:

10 cm x 200 = 2000 cm

The area of the terrace in real life is:

1500 cm x 2000 cm = 3,000,000 cm²

To convert the area to square meters, we need to divide by 10,000 (since 1 m² = 10,000 cm²):

3,000,000 cm² ÷ 10,000 = 300 m²

Therefore, the real area of the terrace is 300 square meters.

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Answer:

C) 3/2x-3=y

Step-by-step explanation:

-3 because that is the Y-intercept and 3/2 is the slope of the line. Y= mx +b is the formula and m is the slope and b is the y intercept.

The equation of given graph is y = \(\frac{-3}{2} x - 3\)

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Answer:

C, $40

Step-by-step explanation:

Based on the pattern shown here, the employee is gaining $10 for every hour they spend working. This means that if the employee works for 4 hours, they get 4*10=$40.

As the worker gets $10 per hour

Step-by-step explanation:

For 4 hours

$10 x 4 = $40

so for working four hours the worker will get $40

Answer:

Place the dots on the x and y axis.

Step-by-step explanation:

(x, y)

Place the x axis dot on the lines that go left to right.

Place the y axis dot on the lines that go up and down.

I hope this helped! ^^

The term that describes an event that increases the likelihood of a response being repeated is known as reinforcement.

Reinforcement can be defined as any consequence that strengthens or increases the probability of a behavior occurring again in the future. This can include positive reinforcement, which involves adding a desirable consequence after a behavior, or negative reinforcement, which involves removing an aversive consequence after a behavior. Both types of reinforcement have been shown to be effective in increasing the likelihood of a behavior being repeated.

Overall, understanding the concept of reinforcement is essential in the field of psychology, particularly in the areas of behaviorism and behavior modification. By providing positive consequences after desired behaviors, individuals can be motivated to continue engaging in those behaviors, which can lead to long-term positive changes. Reinforcement can also be used to shape new behaviors or replace unwanted behaviors with more desirable ones.

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The law of cosines can be used to find the missing angle when the lengths of three sides of a triangle are known. In this case, we want to find the measure of angle a, so we'll use the formula: cos(a) = (b² + c² - a²) / (2bc)where a is the side opposite angle a, b is the side opposite angle b, and c is the side opposite angle c.

To find angle a, we need to rearrange the formula: cos(a) = (b² + c² - a²) / (2bc)cos(a) = (7² + 13² - 10²) / (2 * 7 * 13)cos(a) = 0.81923077a = cos⁻¹(0.81923077)a ≈ 34.2°Therefore, m∠a is approximately 34.2 degrees.

When either the lengths of the two sides and the measure of the included angle (SAS) or the lengths of the three sides (SSS) are known, the Law of Cosines is used to determine the remaining parts of an oblique (non-right) triangle.

The square of a side of an oblique triangle is equal to the sum of the squares of the other two sides minus twice the product of the two sides if A, B, and C are the measures of the angles of the triangle and a, b, and c are the lengths of the sides opposite the corresponding angles.

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Answer:

\(L\) ≤ \(29\)

Step-by-step explanation:

Given

Perimeter = 57 (at most)

Required

Determine the length of each side

The term at most in the values of the perimeter shows that the expression is an inequality and it means that perimeter can't exceed that value;

Let L represents the length of each sides;

Perimeter \(=L+L+L\)

So,

\(L+L+L\) ≤ \(57\)

\(3L\) ≤ \(57\)

Divide both sides by 3

\(3L\) ÷ \(3\) ≤ \(57\) ÷ \(3\)

\(L\) ≤ \(29\)

the answer is 6

Step-by-step explanation:

3z is 3 multiplying by 3 thats 9 and w=3 so 3z minus w= 6

Answer:

\(3z - w = 3(3) - 3 = 9 - 3 = 6 \\ or \: \\ 3(3 - 1) = 3(2) = 6\)

Answer:

125

Step-by-step explanation:

a⅔=25

2/3root each you get root 2/3of 25

According to Baddeley and Hitch's research, the most important factor in determining whether rugby players will remember a particular game is the amount of time that has elapsed since the game was played.

Specifically, players were more likely to remember games that occurred early in the season and those that were particularly important or emotionally charged, while they were less likely to remember games that occurred later in the season or those that were less meaningful or emotionally significant.

This phenomenon is known as the "serial position effect" and has been observed in other contexts as well.

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