-2(5y - 8) help me now

The sample indicates that the data does not provide sufficient evidence to support the claim that 20% of plants are infected.

This given test is a test for single sample proportion

The test hypothesis are:

\(H_{o} :p=0.20\), null hypothesis

\(H_{1} :p\neq 0.20\), alternative hypothesis

The test statistic fallows a standard normal distribution and is given by:

\(Z=\frac{x-p}{{\sqrt{p(1-p)/n} } }\)

p=0.20

X=47 plants

Sample size, n=500

x, is the sample mean:

x=X/n=47/500

x=0.094

So, test statistic is calculated as:

\(Z=\frac{0.094-0.20}{\sqrt{0.20(1-0.20)/500} }\)

Z=-5.93

From the z-table, the p-value associated with Z=-5.93 is approximately 0

The decision rule based on p-vale, is to reject the null hypothesis if p-value is less than confidence level

In this case, the p-value is very small and less than confidence level of 0.20, we therefore reject the null hypothesis or the claim

So we conclude that the data does not provide sufficient evidence to support the claim that 20% of plants are infected.

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Answer:

θ = 36°

Step-by-step explanation:

The Law of Cosines has three equations:

a^2 = b^2 + c^2 - 2bc * cos (A)

b^2 = a^2 + c^2 - 2ac * cos (B)

c^2 = a^2 + b^2 - 2ab * cos (C)

Let's call the 15 mm side c, the 23 mm side a and the 12 mm side b, and angle θ angle C .  Thus, we can use the third equation and plug in 15 for c, 23 for a, and 12 for b to find the measure of angle C (i.e., the measure of θ to the nearest degree):

Step 1:  Plug in 15, 23, and 12 and simplify:

c^2 = a^2 + b^2 - 2ab * cos (C)

15^2 = 23^2 + 12^2 -2(23)(12) * cos (C)

225 = 529 + 144 - 552 * cos (C)

225 = 673 - 552 * cos (C)

Step 2:  Subtract 673 from both sides:

(225 = 673 - 552 * cos (C)) - 673

-448 = -552 * cos (C)

Step 3:  Divide both sides by -552:

(-448 = -552 * cos (C)) / -552

-448/-552 = cos (C)

56/69 = cos (θ)

Step 4:  Use inverse cosine to find C and round to the nearest degree (i.e., the nearest whole number):

cos^-1 (56/69) = C

35.74801694 = C

36 = C

36 = θ

Thus, angle θ is about 36°.

Answer:

b = \(\frac{2A}{h}\)

Step-by-step explanation:

Given

A = \(\frac{1}{2}\) bh ( multiply both sides by 2 to clear the fraction )

2A = bh ( isolate b by dividing both sides by h )

\(\frac{2A}{h}\) = b

The ratio of the radii of smaller circle to that of larger circle is 1/√2.

Let the Radius of smaller circle is "r".

So the area of the smaller circle will be π(radius)²=πr²

Let the Radius of the larger circle is "R".

So the area of the larger circle will be π(radius)²=πR².

In question it is given that, the area of the smaller circle is half of the area of larger circle.

That means,

area of smaller circle=1/2 area of larger circle

area of smaller circle=1/2 area of larger circleπr²=1/2 πR²

area of smaller circle=1/2 area of larger circleπr²=1/2 πR²r²=1/2 R²

area of smaller circle=1/2 area of larger circleπr²=1/2 πR²r²=1/2 R²r²/R²=1/2

area of smaller circle=1/2 area of larger circleπr²=1/2 πR²r²=1/2 R²r²/R²=1/2r/R=√1/2

area of smaller circle=1/2 area of larger circleπr²=1/2 πR²r²=1/2 R²r²/R²=1/2r/R=√1/2r/R=1/√2

Ratio of smaller circle to that of larger circle is 1/√2 .

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The equation for translation of the graph given is y = |x/2-2| + 4

Given is a function y = |x/2-2| + 3, it is translated one unit up, we need to find the translated function.

We know that, f(x) + k moves f(x) by k units up.

So, y = |x/2-2| + 3 → y = |x/2-2| + 3 + 1

y = |x/2-2| + 4

Hence, the equation for translation of the graph given is y = |x/2-2| + 4

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r = 88.5

y = 3/4

Step-by-step explanation:

From the lower triangle,

97 - 2x = 4x -2

Collecting all similar terms, we get

6x = 99 or x = 16.5

From the upper triangle, we can see that

5x + 6 = r ---> 5(16.5) + 6 = r or r = 88.5

Since the sum of all the interior angles of a triangle is equal to 180, we can write

4y + (5x + 6) + r = 180 ---> 4y + 5(16.5) + 6 + 88.5 = 180

4y = 3 or y = 3/4

To compute the values of (r) and (x) for the different states of the harmonic oscillator, we need to consider the wavefunction solutions for each state.

The wavefunctions for the harmonic oscillator are given by Hermite polynomials multiplied by a Gaussian factor. The energy eigenvalues for the harmonic oscillator are given by (n + 1/2) * h * ω, where n is the quantum number and ω is the angular frequency of the oscillator. (a) Ground State: The ground state of the harmonic oscillator corresponds to n = 0. The wavefunction for the ground state is: ψ₀(x) = (mω/πħ)^(1/4) * exp(-mωx²/2ħ), where m is the mass of the oscillator. In this state, the energy (E₀) is equal to 1/2 * h * ω. Therefore, for the ground state: (r) = 0 (since n = 0). (x) = √(ħ/(2mω)). (b) First Excited State:The first excited state corresponds to n = 1. The wavefunction for the first excited state is: ψ₁(x) = (mω/πħ)^(1/4) * √2 * (mωx/ħ) * exp(-mωx²/2ħ), where m is the mass of the oscillator. In this state, the energy (E₁) is equal to 3/2 * h * ω. Therefore, for the first excited state: . (r) = 1. (x) = √(ħ/(mω)). (c) Second Excited State:The second excited state corresponds to n = 2. The wavefunction for the second excited state is: ψ₂(x) = (mω/πħ)^(1/4) * (2(mωx/ħ)^2 - 1) * exp(-mωx²/2ħ)  where m is the mass of the oscillator. In this state, the energy (E₂) is equal to 5/2 * h * ω.

Therefore, for the second excited state: (r) = 2. (x) = √(ħ/(2mω)). In summary: (a) Ground State: (r) = 0, (x) = √(ħ/(2mω)). (b) First Excited State: (r) = 1, (x) = √(ħ/(mω)). (c) Second Excited State: (r) = 2, (x) = √(ħ/(2mω)).

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The corrrect statements about angle are:

Please refer to the attached picture below for visualization of the angles.

Based on the attached picture, we can consider the relationship of each angle, such as:

Alternate interior angles and congruent:

Angle 4 and angle 5

Angle 3 and angle 6

Alternate exterior angles and congruent:

Angle 1 and angle 8

Angle 2 and angle 7

Consecutive interior angles and supplementary:

Angle 3 and angle 5

Angle 4 and angle 6

Corresponding angles and congruent:

Angle 1 and angle 5

Angle 2 and angle 6

Angle 3 and angle 7

Angle 4 and angle 8

Vertical angles and congruent:

Angle 1 and angle 4

Angle 2 and angle 3

Angle 5 and angle 8

Angle 6 and angle 7

Supplementary angles:

Angle 1 and angle 2

Angle 3 and angle 4

Angle 5 and angle 6

Angle 7 and angle 8

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The afternoon practice is 2 hours long.

Let x be the hours the team practices in the afternoon.

Since the team practices 3 hours in the morning, the total number of hours the team practices per day is T = 3 + x

Also, the team practices 4 days per week.

So, the total number of hours the team practices per week = number of hours per day number of days per week = T × 4

= (3 + x)4

= 4(3 + x)

Now, the total number of hours the team practices each week is 20.

So, 4(3 + x) = 20

3 + x = 20/4

3 + x = 5

x = 5 - 3

x = 2

So, the afternoon practice is 2 hours long.

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Answer:

Step-by-step explanation:

3( x - 8 ) = 9

x - 8 = 3

x = 3 + 8

x = 11

Answer:

x=11

Step-by-step explanation:

3x-24=9

3x=9+24

3x=33

x=33/3

x=11

Answer:

I could but can you please put down the problem.

Step-by-step explanation:

The quadratic function x² + 4x - 5 is factorized to give

(x + 5) (x - 1)

The given quadratic function is x² + 4x - 5

The graph is plotted and the roots of the equation which is the x intercepts that is the points where the graph cuts the x axis is found to be points 1 and -5

Using points 1 and -5 the equation is sort as follows

for 1

x = 1

x - 1 = 0

for -5

x = -5

x + 5 = 0

bringing the solutions together

(x + 5) (x - 1)

The solution is (x + 5) (x - 1)

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Answer:

213.52 cubic ft

Step-by-step explanation:

Diameter of pipe = 4ft

radius for circle is half of diameter

thus radius of pipe = 1/2 of 4ft = 2 ft

length of pipe = 17 feet

volume of cylinder is given by \(\pi r^2l\)

where r is the radius and l is the length of cylinder

.

thus volume of pipe is calculated below using above values

\(volume \ of \ pipe = \pi r^2l\\volume \ of \ pipe = \3.14* 2^2*17 \\volume \ of \ pipe = 213.52\)

volume of pipe is 213.52 cubic ft.

Dynamic pricing is typically used to increase ticket sales on low attendance days, offer fans discounts on concessions.

Dynamic pricing is used to set the price of tickets based on the situation of the demand and reduce the number of unsold tickets.

It is used to adjust the prices that tickets are sold during sports which can be based on such variables as demand, weather, team performance and even pitching match-ups.

Therefore, Dynamic pricing is typically used to increase ticket sales on low attendance days, offer fans discounts on concessions.

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Answer:

17

Step-by-step explanation:

Answer: the answer is 17

Step-by-step explanation:

Arrange your numbers in numerical order.

Count how many numbers you have.

If you have an odd number, divide by 2 and round up to get the position of the median number.

If you have an even number, divide by 2. Go to the number in that position and average it with the number in the next higher position to get the median.

Get the center of the circle

2gx = -2x

2g = -2

g = -1

Similarly, 2fy = 0

f = 0

Centre = (-(-1), 0) = (1, 0)

This shows that the center of the circle lies on the X-axis

r = radius = √g²+f²-C

radius = √1²+0²-(-8)

radius =√9 = 3 units

The radius of the circle is 3 units.

For the circle x² + y² = 9, the radius is expressed as:

r² = 9

r = 3 units

Hence the radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.

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Answer:

That would be D or the last graph

Answer:

D

Step-by-step explanation:

The line passes through point at x = 0, y =3

y = x + 3

Choose 3 points as shown on the graph to deduce the correct one

when

x = 0, y = 3

x = 6, y = 9

x = -10, y = -7

Then;

put points (0,0)

0 = 3

Which is not true, color is placed above the line

I hope this Helps. Have a nice studies

Based on the given information, the researcher should not reject the null hypothesis if using an alpha level of 0.05.

In hypothesis testing, the null hypothesis is typically assumed to be true until there is sufficient evidence to reject it. To determine whether to reject the null hypothesis, researchers often compare the calculated F-value from an ANOVA test with the critical F-value. The critical F-value is based on the significance level (alpha) chosen for the test. In this case, the given F-value is 3.47 with degrees of freedom (3, 32), indicating that there are three groups and a total of 32 observations. To make a decision, the researcher needs to compare the calculated F-value to the critical F-value. If the calculated F-value is greater than the critical F-value, the null hypothesis is rejected. However, if the calculated F-value is less than or equal to the critical F-value, the null hypothesis is not rejected. Since the critical F-value corresponding to alpha = 0.05 is not provided in the question, we cannot determine whether the null hypothesis should be rejected.

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Answer:

Step-by-step explanation:

The change in the amount of water in the pool is the difference between the amount of water that enters and leaves the pool

Change in volume of water in the pool after 112 minutes is  gallons

Reason:

The given parameters are;

The volume volume of entering the pool = 10 3/4 gallons per minute

The volume of water leaving the pool = 12 1/3 gallons per minute

Answer:

$33.81

Step-by-step explanation:

Strawberries = $2.49 Per Pound (Bought 3)

Blueberries = $3.19 Per Pound (Bought 2)

Pineapples = $4.99 Per Pound (Bought 4)

So we have to multiply each price with the number of fruits bought.

So, For Example, Strawberries: $2.49 × 3 = $7.47

After you did all three individually, add them all up.

Strawberries : $7.47

Blueberries : $6.38

Pineapple : $19.96

Total = $33.81

The three computations covered by the reliability factor table are sample size, index of reliability, and index of precision. Sample size deals with the size of the sample being used in order to achieve a desirable level of reliability.

Index of reliability is used to measure the consistency of results achieved over multiple trials. It does this by calculating the total number of items that contribute significantly to the final result. Finally, the index of precision measures the effect size of the sample, which is determined by comparing the results from the sample with the expected results.

The sample size computation gives the researcher an idea of the number of items that should be included in a sample in order to get the most reliable results. This is done by taking into account a number of factors including the variability of the population, the type of measurements used, and the desired level of accuracy.

The index of reliability is commonly calculated by finding the ratio of the number of items contributing significantly to the total result to the total number of items in the sample. This ratio is then multiplied by 100 in order to get a final score.

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9514 1404 393

Answer:

  (2x -3)(2x -1)

Step-by-step explanation:

We have filled in the X-diagram so the side values have a product equal to the top value, and a sum equal to the bottom values (the middle term).

We're not sure how you've been taught to split the leading coefficient to arrive at the factors shown on the right.

Answer:

1. 0.75 (terminating decimal)

2. 0.54..... (non-terminating decimal)

3. 0.1875 (terminating decimal)

4. 0.25 (terminating decimal)

5. 0.166.... (non-terminating decimal)

The possible monthly high temperature is less than 25°.

It's important to note that temperature simply means the degree of hotness and the coldness that a particular medium has.

In this situation, the difference between the monthly high and low temperatures was less than 27° Fahrenheit and monthly low temperature

was -2° Fahrenheit. Therefore, the monthly high will be:

High - Low < 27

High - (-2) < 27

High + 2 < 27

High < 27 - 2

High < 25

The interpretation means that the temperature is less than 25°F.

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Answer:

5

Step-by-step explanation:

4a + 6b = 24

6a - 12b = -6

Rewrite the first equation below. Divide both sides of the second equation by 2 and write below the first equation. Then add the equations.

      4a + 6b = 24

+     3a - 6b = -3

----------------------------

      7a         = 21

Divide both sides by 7.

a = 3

Now substitute 3 for a in the first equation and solve for b.

4a + 6b = 24

4(3) + 6b = 24

12 + 6b = 24

6b = 12

b = 2

a = 3, and b = 2

a + b = 3 + 2 = 5

Answer: 5

\( \frac{1}{2} \times 24 = 12 {cm}^{2} \)

Answer:

I think that its the amount of water that decreases each day

Step-by-step explanation:

I'm taking the quiz now so we'll see if I'm right.

Answer:

It represents the amount of water left in the tank

Step-by-step explanation:

I had the exact same question, but asked for the slope, meaning they said the answer to the question. (EDG 2022)

This was my question- The graph shows the amount of water that remains in a barrel after it begins to leak. The variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel.

A graph titled Water Supply with a number of days on the x-axis and gallons of water left on the y-axis. A line goes through points (6, 33) and (15, 15).

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If Jerry places s single $5 bet on 4 spot keno the expected value of winnings is 20  with standard deviation of 4.5

We should know that combination involves the selection of numbers from a group other items

The given parameters are

Single bet of $5

4-spot keno

That is that say

5*4 = 20

So the total number of sport keno is 5*4=20

This is because it is assumed that each of the 4-sport keno is $5

The standard deviation is the square root root of the kenos

That is √20=4.5

Therefore the number of keno sports is 20 with

4.5 standard deviation

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