Q8) needs solving help

The correct answer is Independent groups design.

Given that,

Participants in a study are randomly allocated to one of two groups; one group is run at night, while the other is run during the day. Then, each member of each group is measured twice under the red and blue conditions, respectively.

Independent groups design.

Independent measures style, conjointly called between groups is an experimental style wherever completely different participants are employed in every condition of the experimental variable. This suggests that every condition of the experiment includes a distinct cluster of participants.

Therefore, the correct answer is Independent groups design.

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Answer:

2.93 repeating

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

since he needs 32 points to get to 75 points,

soo you just dividi the points you need by the points you get by every question since it's 2 for every question you just need half of the question needed to get to 32 points soo divide it by 2 and the answer you get is 16.

Answer:

v = 10

Step-by-step explanation:

\( \dashrightarrow \: { \sf{ {v}^{2} - {u}^{2} = 2as}} \: \: \: \\ \\ \dashrightarrow \: { \sf{ {v}^{2} = {u}^{2} + 2as }} \: \: \: \\ \\ \dashrightarrow \: { \sf{v = \sqrt{ {u}^{2} + 2as} }} \\ \\ \: \: \: \: \: \: \: { \colorbox{lightblue}{substitute \: variables}} \\ \\ \dashrightarrow \: { \sf{v = \sqrt{ {4}^{2} + 2(2 \times 21) } }} \\ \\ \dashrightarrow \: { \sf{v = \sqrt{16 + 84} }} \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\\dashrightarrow \: { \sf{v = \sqrt{100} }} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \dashrightarrow \: { \sf{v = 10}} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \)

The equation in standard form for the circle with center (5,0) passing through (5, 9/2) is 4x² + 4y² - 40x + 19 = 0

Given that

Center = (5, 0)

Point on the circle = (5. 9/2)

The equation of a circle can be expressed as

(x - a)² + (y - b)² = r²

Where

Center = (a, b)

Radius = r

So, we have

(x - 5)² + (y - 0)² = r²

Calculating the radius, we have

(5 - 5)² + (9/2 - 0)² = r²

Evaluate

r = 9/2

So, we have

(x - 5)² + (y - 0)² = (9/2)²

Expand

x² - 10x + 25 + y² = 81/4

Multiply through by 4

4x² - 40x + 100 + 4y² = 81

So, we have

4x² + 4y² - 40x + 19 = 0

Hence, the equation is 4x² + 4y² - 40x + 19 = 0

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Answer: 4 days, more below

Step-by-step explanation:

40.50x + 0.15y < 210

(0.15)(125)=18.75

40.50x + 18.75 < 210

40.50x < 191.25

x < 4.7222222...

She can afford to rent the car for 4 days if she drives 125 miles and has 210$ to spend.

The expression for the phrase is 5 * (x - 6) = 24

The phrase is given as:

the product of 5 minus 6 has a result of 24

Products means *

So, we have

5 * (x minus 6) has a result of 24

x minus 6 means x - 6

So, we have

5 * (x - 6) has a result of 24

has a result of 24 means = 24

So, we have

5 * (x - 6) = 24

Hence, the expression for the phrase is 5 * (x - 6) = 24

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Answer:

the answer is 1

Step-by-step explanation:

open bracket and collect like terms

Answer: k = -5

Step-by-step explanation:

-3(2k-6)-12

First use distributive property

-6k + 18 - 12

Add like terms

-6k + 30

Divide each side by -6

k = -5

The object reaches its maximum height of 144 feet after 2 seconds, takes 5 seconds to hit the ground, and has an initial height of 80 feet. The appropriate domain for the function is all real numbers, while the range is y ≤ 144.

Here are the answers to your questions regarding the equation y = -16t^2 + 64t + 80:

1. How long does it take to get to its maximum height?

The time it takes to reach the maximum height is 2 seconds.

To find the time at which the maximum height is reached, we need to determine the vertex of the quadratic equation. The vertex can be calculated using the formula t = -b / (2a), where a, b, and c are the coefficients of the quadratic equation. In this case, a = -16 and b = 64. Substituting these values into the formula gives us t = -64 / (2 * -16) = 2 seconds.

2. What is its maximum height?

The maximum height of the object is 144 feet.

To find the maximum height, we substitute the value of t = 2 seconds into the equation. Plugging in t = 2 gives us y = -16(2)^2 + 64(2) + 80 = 144 feet.

3. How long does it take to hit the ground?

The time it takes for the object to hit the ground is 5 seconds.

To determine when the object hits the ground, we need to find the time when the object's height (y) is zero. We can solve this quadratic equation by setting y = 0 and then solving for t. By factoring or using the quadratic formula, we find two solutions: t = -1 and t = 5. Since time cannot be negative in this context, we discard the -1 solution, leaving us with t = 5 seconds.

4. What is an appropriate domain and range for this function?

The appropriate domain for this function is all real numbers (t ∈ R), representing any valid time. The range is y ≤ 144, indicating that the maximum height reached by the object is 144 feet or less.

5. What does the 80 in the equation represent?

The constant term 80 in the equation represents the initial height of the object.

When t = 0, the term -16t^2 + 64t evaluates to 0, but the constant term 80 remains. Hence, the initial height of the object is 80 feet.

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Answer:

Both Jim and Lynn, as midpoint formula observes commutative property, which commutes the position of each endpoint inside the sum without altering the result.

Step-by-step explanation:

We must remember that location of midpoint of any line segment can be determined by using this formula in function of the endpoint locations:

\((x_{M},y_{M}) = \left(\frac{x_{R}+x_{S}}{2}, \frac{y_{R}+y_{S}}{2} \right)\)

Where:

\(x_{M}\), \(y_{M}\) - Location of midpoint, dimensionless.

\(x_{R}\), \(y_{R}\) - Location of endpoint R, dimensionless.

\(x_{S}\), \(y_{S}\) - Location of endpoint S, dimensionless.

Both Jim and Lynn, as midpoint formula observes commutative property, which commutes the position of each endpoint inside the sum without altering the result. That is:

\((x_{M},y_{M}) = \left(\frac{x_{R}+x_{S}}{2}, \frac{y_{R}+y_{S}}{2} \right) = \left(\frac{x_{S}+x_{R}}{2}, \frac{y_{S}+y_{R}}{2} \right)\)

A. To determine if an integral is convergent, we analyze the function's behavior, integrability, apply integration techniques, and examine its limits, ensuring they are finite, leading to a finite result.

B. To determine if an integral is divergent, we look for infinite limits, vertical asymptotes, and erratic behavior within the integration interval, indicating the lack of a finite value for the integral.

A. To determine if an integral is convergent, we need to consider several approaches. First, we check for basic convergence criteria such as infinite limits or vertical asymptotes.

Then, we examine integrability, ensuring the function is continuous or has a finite number of discontinuities. Next, we simplify the integral using integration techniques.

Finally, we analyze the behavior of the function at infinity and apply comparison tests if necessary to establish convergence.

B. To determine if an integral is divergent, we follow a series of steps. First, we check for basic divergence criteria such as infinite limits or vertical asymptotes.

Then, we examine integrability, looking for discontinuities that prevent integration. Next, we simplify the integral using integration techniques. Finally, if the integral does not converge, it is deemed divergent.

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Answer:

the first option

Step-by-step explanation:

f(c)= 1/3p + 5/3

Answer:

70

Step by step explanation

Answer:

150°

Step-by-step explanation:

The 70° angle is on a straight line so to find the next angel for the triangle

180-70=110

Angles in a triangle adds up to 180

so

110+40=150

180-150=30

Therefore the angle near x in the triangle is 30

To find x

180-30=150°

Neither student is correct and Venus is closer to the correct answer.

What is the proper fraction?

A proper fraction is a fraction where the numerator is smaller than the denominator. In other words, it represents a value that is less than one. Proper fractions are usually expressed in the form of a/b, where a is the numerator and b is the denominator.

Neither student is correct. The fraction 7/8 is a proper fraction, which means that it represents a value that is less than 1. It cannot be equivalent to a percentage that is greater than 100.

To convert a fraction to a percentage, we multiply the fraction by 100. So, to find the equivalent percentage for 7/8, we can calculate:

7/8 x 100 = 87.5%

Therefore, Venus is closer to the correct answer with her estimate of about 88%. Keyshawn may have made the mistake of multiplying 7/8 by 100 and getting 114% instead of dividing 7 by 8 to get the decimal equivalent of 0.875, and then multiplying by 100 to get the percentage equivalent of 87.5%.

Hence, neither student is correct and Venus is closer to the correct answer.

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The Laplace Transform of f(t) isL{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...

                            = (1/s^2) + e^{−πs}(1/s^2) − e^{-2πs}(1/s^2) + ...= (1/s^2)[1 + e^{−πs} − e^{−2πs} + ...]

Given function is,f(t) ={ t, 0 < t < π π < t < 2π}

where f(t + 2 π) = f(t)

Let's take Laplace Transform of f(t)

                     L{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...f(t + 2π) = f(t)

∴ L{f(t + 2 π)} = L{f(t)}⇒ e^{2πs}L{f(t)} = L{f(t)}

     ⇒ [e^{2πs} − 1]L{f(t)} = 0L{f(t)} = 0

when e^{2πs} ≠ 1 ⇒ s ≠ 0

∴ The Laplace Transform of f(t) is

                       L{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...

                               = (1/s^2) + e^{−πs}(1/s^2) − e^{-2πs}(1/s^2) + ...

                              = (1/s^2)[1 + e^{−πs} − e^{−2πs} + ...]

The Laplace Transform of f(t) isL{f(t)} = L{t} + L{t + π}u(t − π) − L{t − 2π}u(t − 2π) + ...

                            = (1/s^2) + e^{−πs}(1/s^2) − e^{-2πs}(1/s^2) + ...= (1/s^2)[1 + e^{−πs} − e^{−2πs} + ...]

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The pound of berrie that Gabrielle put in each container is 5/6 pounds.

A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.

In this case, Gabrielle picked 5 5/6 pound of berrie and she divided the evenly among 7 container.

The pounds in each container will be:

= Total pounds / Number of container

= 5 5/6 ÷ 7

= 35/6 ÷ 7

= 35/6 × 1/7

= 5/6

There'll be 5/6 pounds in each container.

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Answer:

28 cm

Step-by-step explanation:

8+8=16

16+6=22

22+6= 28

Answer:

got ub the naswers is 5x+y==6

Step-by-step explanation:

Answer:

.im fully loaded

Step-by-step explanation:

Answer:

(x + 1)(x + 5)

Step-by-step explanation:

Given

(x + 1)² + 4(x + 1) ← factor out (x + 1) from each term

= (x + 1)(x + 1 + 4)

= (x + 1)x + 5)

Answer:

84 cm.

Step by Step Explanation:

length= 12 cm

breadth= 7 cm

Height= 4 cm

Area= L×B

= (12×7) cm

= 84 cm^2

Current trends in math instruction are likely to lead to graduates who are able to "find precise answers quickly by consulting texts and tables."

A analysis of studies on mathematics instruction encompassing students with educational disabilities discovered a variety of behavioral, cognitive, & metacognitive approaches that have been shown to improve both mathematical computation & mathematical solving problems in students with LD.

Some key features regarding the math instruction are-

Some points regarding the importance of the math instruction are-

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Answer:

24.33 feet

Step-by-step explanation:

The flower bed, the ladder and the house form a right angled triangle where the length of the ladder is the hypotenuse side.

Let L = length of ladder, H = height of house = 24 feet and l = length of flower bed = 4 feet.

Using Pythagoras' theorem,

L² = H² + l²

So, L = √(H² + l²)

substituting the values of the variables, we have

L = √[(24 ft)² + (4 ft)²]

L = √[576 ft² + 16 ft²]

L = √[592 ft²]

L = 24.33 ft

The ladder must be at least 24.33 feet long to reach the top and be out of the flower bed

The equation that represents the amount of lemonade left in the pitcher will be.(18.5 - 6.4) = 12.1

From the information given, Maikel has a pitcher filled with 18.5 ounces of lemonade and she pours 6.4 ounces into a glass for herself.

Therefore, the equation that represents the amount of lemonade left in the pitcher will be:

= Total amount - amount poured

= 18.5 - 6.4

= 12.1

Therefore the amount left will be 12.1 ounches

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Answer:

26%

Step-by-step explanation:

running shoes: 30% off

basketball shoes: 20% off

2 pairs of running shoes + 1 pair of basketball shoes cost

2 * $50 + $75 = $175

The total original price before the discount was $175

Now we find the discounted prices and the total discounted price.

running shoes: 30% off means you pay 70% of the original price

70% of $100 = 0.7 * $100 = $70

basketball shoes: 20% off means you pay 80% of the original price

80% of $75 = 0.8 * 75 = $60

The total discounted price is $70 + $60 = $130

Now we find the actual discount.

Original total undiscounted price: $175

Total discounted price: $130

Actual total amount of discount: $175 - $130 = $45

Now we find the percent that 45 is of 175.

45/175 * 100% = 25.714...%

Answer: 26%

The correct option is a) $5161.24

To evaluate the expression P(1+rt) with the given values:

P = 1575

r = 0.055

t = 168/365

First, let's calculate rt:

rt = 0.055 * (168/365)

= 0.0252836 (rounded to 7 decimal places)

Now, substitute the values into the expression P(1+rt):

P(1+rt) = 1575 * (1 + 0.0252836)

= 1575 * 1.0252836

= 1615.85846 (rounded to 5 decimal places)

The result is approximately $1615.86.

Therefore, the correct option is a) $5161.24

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Answer:

Step-by-step explanation:

dad hates me sorry bye

Checking for approximate normality in the population is essential for constructing a valid confidence interval, particularly when dealing with small sample sizes. This ensures the accuracy and reliability of the interval in estimating the true population parameter.

It's important to check whether the population is approximately normal before constructing a confidence interval because the accuracy and validity of the interval depend on the underlying distribution of the population. Here's a step-by-step explanation:

1. A confidence interval is a range of values within which the true population parameter (e.g., mean or proportion) is likely to fall, with a certain level of confidence (e.g., 95% or 99%).

2. The process of constructing a confidence interval relies on the Central Limit Theorem, which states that, for large sample sizes, the sampling distribution of the sample mean will be approximately normal, regardless of the population distribution.

3. However, for small sample sizes, the distribution of the population needs to be approximately normal in order to obtain an accurate confidence interval. This is because the normality assumption is crucial for the proper interpretation of the interval.

4. If the population is not approximately normal, the confidence interval may not provide a reliable estimate of the true population parameter, leading to incorrect conclusions and potentially invalid results.

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Answer:

8.00am

Step-by-step explanation:

from 12 at night to 12 noon the time notation for 24 hrs and 12 hrs stay the same

The complex numbers in the form re^(iθ) with 0 ≤ θ < 2π are: 3 = 3e^(i0), i = e^(iπ/2), -1 = e^(iπ), 2+2i = 2sqrt(2)e^(iπ/4), and 2-2√3i = 4e^(i5π/3).

To express complex numbers in the form re^(iθ), where r is the modulus and θ is the argument, we can use the following steps:

3: The complex number 3 can be written as 3e^(i0), where the modulus r is 3 and the argument θ is 0. Therefore, 3 = 3e^(i0).

i: The complex number i can be written as 1e^(iπ/2), where the modulus r is 1 and the argument θ is π/2. Therefore, i = e^(iπ/2).

-1: The complex number -1 can be written as 1e^(iπ), where the modulus r is 1 and the argument θ is π. Therefore, -1 = e^(iπ).

2+2i: To express 2+2i in the form re^(iθ), we first calculate the modulus r:

|r| = sqrt((2^2) + (2^2)) = sqrt(8) = 2sqrt(2).

Next, we calculate the argument θ:

θ = arctan(2/2) = arctan(1) = π/4.

Therefore, 2+2i = 2sqrt(2)e^(iπ/4).

2-2√3i: To express 2-2√3i in the form re^(iθ), we first calculate the modulus r:

|r| = sqrt((2^2) + (-2√3)^2) = sqrt(4 + 12) = sqrt(16) = 4.

Next, we calculate the argument θ:

θ = arctan((-2√3)/2) = arctan(-√3) = -π/3.

Since we want the argument to be in the range 0 ≤ θ < 2π, we can add 2π to the argument to get θ = 5π/3.

Therefore, 2-2√3i = 4e^(i5π/3).

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The confidence coefficient for a 98% confidence interval is 2.33, indicating the number of standard deviations away from the mean.

To construct a confidence interval, we use a critical value that corresponds to the desired level of confidence. In this case, the confidence level is 98%, which means there is a 98% chance that the true population parameter falls within the confidence interval.

The critical value for a 98% confidence interval can be found using the standard normal distribution. Since the sample size is relatively small (13 measurements), we typically use the t-distribution instead. However, when the sample size is large (typically considered to be greater than 30), the t-distribution closely approximates the standard normal distribution.

For a 98% confidence level, the critical value is 2.33. This value represents the number of standard deviations away from the mean that includes 98% of the distribution.

Therefore, the correct answer is (D) 2.33 as the confidence coefficient for a 98% confidence interval.

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