james says 5/5 is greater than 9/10 is james correct explain

The average value of a particular sample is known as sample mean

Sample mean is calculated by adding up all the values in the samples and after that dividing by the total no of observations in the sample

Options and definitions given in the question are not accurate

Because rather than sample means, we call it average of sample means

Sample means provides an estimate of the central tendency of the sample and it's basically a descriptive statistic

Suppose we have samples of five scores: 5, 6, 2, 8, 1

Then the sample mean would be :

\(\frac{(5 + 6 + 2 + 8 + 1}{5}\) = \(\frac{22}{5}\) = 4.4

Sample mean would be 4.4

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Answer:

7x + 3 = 2x + 23

collect like terms

7x-2x=23-3

5x=20

divide both sides by 5

x=4

5-x=8-x

collect like terms

5-8=-x+x

-3=0

5(1+x)=5x-5

open the bracket

5+5x=5x-5

5+5=5x-5x

10=0

They support an increase in the state sales tax from 5% to 6%, with the additional revenue going to education. Let denote the proportion of adults in the sample who say they support the increase. Suppose that 40% of all adults in Ohio support the increase. the correct answer is (d) 0.40.

Mean is nothing but the average of the given set of values. It denotes the equal distribution of values for a given data

set.  The mean, median and mode are the three commonly used measures of central tendency.

To calculate the mean, we need to add the total values given in a datasheet and divide the sum by the total number of

values.

The mean, μ, of the sampling distribution of p can be found using the formula

μ = p,

where p is the proportion of adults in the entire population who support the increase.

In this case, 40% of all adults in Ohio support the increase, so p = 0.40.

Therefore, the mean of the sampling distribution of p is:

μ = 0.40

So the correct answer is (d) 0.40.

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Answer:

Step-by-step explanation:"To solve this equation, you can start by distributing the 0.20 and 0.30 terms. Then, you can simplify the equation by combining like terms. After that, you can isolate the variable Z on one side of the equation by adding or subtracting terms from both sides. Finally, you can solve for Z. The solution is Z = 1000. Does that help?"

Answer:

Step-by-step explanation:

i think its D

This expression cannot be simplified, as you cannot add or subtract variables raised to different exponents.

Answer:

Step-by-step explanation:

6z⁶ - 21z⁴ - 12z² = 2*3*z⁶ - 3*7*z⁴ - 4*3*z²

                           = 3z² (2z⁴ - 7z² - 4)

Answer:

Step-by-step explanation:

x1=7 ,y1=-4 ,x2=7 ,y2=0

By using Two-points form:

\(\frac{y-y_{1}}{y_{2}-y_{1} } =\frac{x-x_{1} }{x_{2}-x_{1} }\)

Substitute values:

\(\frac{y+4}{0+4} =\frac{x-7}{7-7}\)

\(\frac{y+4}{4} =\frac{x-7}{0}\)

4(x-7)=0(y+4)

4(x-7)=0

x-7=0

x-7=0 is the line parallel to y-axis at point x=7.

If you need to ask any question, please let me know.

The probability that more than a minute foes by without a hit is  0.0498.

Let X denote the waiting time in minutes until the next hit.

From the question, we have

The probability density function of exponential distribution is,

f(x)=λe^(-λ*)        λ>0

Probability =

P(X>1) =∫_1^∞  3e^(-3x) dx

=3(e^(-3z)/(-3))_1^∞

=e^(-3)

=0.0498

Probability = 0.0498

Probability:

Possibility is referred to as probability. This branch of mathematics deals with the occurrence of a random event. The value's range is 0 to 1. Probability has been applied into mathematics to predict the likelihood of different events. Probability generally refers to the degree to which something is likely to occur. This fundamental theory of probability, which also applies to the probability distribution, can help you comprehend the possible outcomes for a random experiment. Gonna determine how likely something is to occur, use probability. Many things are hard to predict with 100% certainty. We can only anticipate the possibility of an event occurring using it, or how likely it is.

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Answer:

=> 7+u = 14; u = 7

Step-by-step explanation:

The sum of 7 and u is 14

=> u + 7 = 14

=> u = 14-7

=> u = 7

Answer:

c is the answer for this hope it helps

Answer:

Step-by-step explanation:

The first two options don't make sense as absolute value is always positive.

The third option requires the answer to be within one interval but our answer is the combination of two intervals.

Let's verify if the last option is correct:

So this option is matching the graph

Answer:

25 and 20 milies/gallons

Step-by-step explanation:

Let the fuell efficientcy of the first and the second car be f and s in gallons/miles.

Then the distance traveled by car 1 is 30 f and the car 2 is 25 s.

Since we also know that 1250 is the total distance traveled then

30 f + 25 s = 1250    (1)

Moreover we know that the efficiency is 45 miles/gallon. Hence

f + s  = 45

Multiply by 30 we have

30 f  + 30 s = 1350   (2)

Subtract the (1) equation from (2) we have

5s = 100

s = 20

f + 20 =45

f = 25

So the efficiency of the first car is 25 miles/gallons while the second one is 20 miles/gallons.

Answer:

41, 49, 57

Step-by-step explanation:

there is a common difference d between consecutive terms, that is

d = 9 - 1 = 17 - 9 = 25 - 17 = 33 - 25 = 8

thus add 8 to a term to obtain the next term

33 + 8 = 41

41 + 8 = 49

49 + 8 = 57

Answer:

Total surface area of a hemisphere: A = 3 * π * r² , Surface to volume ratio of a hemisphere: A / V = 9 / (2 * r) .

3(x + 2) + 35 + 52 = 180

3x + 6 + 87 = 180

3x + 93 = 180

3x = 180 - 93

3x = 87

x = 29

\( \: \)

3(x + 2) = ...

= 3(29 + 2)

= 3(31) = 93°

A total of 3 comparisons are required to find 42 using binary search in this particular array.

In binary search, the number of comparisons required to find a target value depends on the size of the array and the position of the target value within the array.

In this case, we have an array with 13 elements. In the first comparison, we compare the target value (42) with the middle element of the array.

The first comparison: 42 is compared with the middle element 8.

Since 42 is greater than 8, we can eliminate the first half of the array and continue the search in the second half. Now we have an array with 6 elements.

The second comparison: 42 is compared with the middle element 21.

Since 42 is greater than 21, we can again eliminate the first half of the remaining array and continue the search in the second half. Now we have an array with 3 elements.

The third comparison: 42 is compared with the middle element 42.

We have found the target value in the third comparison.

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Answer:

Step-by-step explanation:

Yesterday snowed: 5 2/3 feet

Today snowed: 1/2 of a foot

The difference is:

Answer:

Owen can type 536 2/3 per minute

Step-by-step explanation:

let me know if this is wrong

The algebra word problem method shows that Richard is 22 years old and Teo is 6 years old.

Algebra is used in our daily lives without us even recognizing it. Students can relate to and comprehend the significance of mathematics in the real world by solving algebraic word problems in worksheets.

Algebraic word problems usually comprise interpreting words into numbers, variables, their coefficients, and the use of appropriate arithmetic operations.

From the information given, we can the following system of equations as follows:

r + t = 28     --- (1)

r =  2t + 10   --- (2)

(2t + 10) + t = 28

3t + 10 = 28

3t = 28 - 10

3t = 18

t = 18/3

t = 6

From (1),  r + t = 28

r + 6 = 28

r = 28 - 6

r = 22

Therefore, we can conclude that Richard is 22 years old and Teo is 6 years old.

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Answer:

Step-by-step explanation:

The standard form:

Pairs given:

Substitute values of x and y and work out the values of a, b and c.

1. Point (0, 0)

2. Point (2, 4)

3. Point (4, 0)

Substitute b and solve for a:

Find b:

The function is:

Answer:

your equation is false

The tangent of y(x) at x = 1 is y'(1) = 4 + C₁, and the value of f(1) is 5, we can solve for C₁ to get C₁ = 1. Therefore, the function y(x) = x⁴ / 4 + x + C₂, where C₂ is another constant.

The given equation is  f (x) = 5, and it is the tangent of the function y = x³ / 3 at x = 1.To get y = x (x² / 2 + C), we integrate the second derivative of y with respect to x.∫(d²y/dx²)dx = ∫(12x²)dx => y = 4x³ + C₁ Solve for C₁ by applying the point-slope equation at the point x = 1:f(1)

= 5

= y(1)

= 4(1)³ + C₁

=> C₁ = 1Therefore, the equation of y is: y = 4x³ + 1.For a more in-depth and better explanation, here are 150 words: A second derivative represents the rate of change of the first derivative with respect to x.

Therefore, if we have a second derivative of y with respect to x, we can integrate it twice to get a function of y with respect to x. Given y''(x) = 12x², we can integrate it once to obtain y'(x) = 4x³ + C₁, where C₁ is a constant. We integrate y'(x) once again to get y(x) = x⁴ / 4 + C₁x + C₂, where C₂ is another constant. Now, to find C₁ and C₂, we need to use the fact that the function f(x) = 5 is tangent to y(x) at x = 1.

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The tangent of y(x) at x = 1 is y'(1) = 4 + C₁, and the value of f(1) is 5, we can solve for C₁ to get C₁ = 1. Therefore, the function y(x) = x⁴ / 4 + x + C₂, where C₂ is another constant.

The given equation is  f (x) = 5, and it is the tangent of the function

y = x³ / 3 at x = 1.

To get y = x (x² / 2 + C),

we integrate the second derivative of y with respect to x.

∫(d²y/dx²)dx = ∫(12x²)dx

=> y = 4x³ + C₁

Solve for C₁ by applying the point-slope equation at the point

x = 1:f(1)

= 5

= y(1)

= 4(1)³ + C₁

=> C₁ = 1Therefore, the equation of y is: y = 4x³ + 1

.For a more in-depth and better explanation, here are 150 words: A second derivative represents the rate of change of the first derivative with respect to x.

Therefore, if we have a second derivative of y with respect to x, we can integrate it twice to get a function of y with respect to x.

Given y''(x) = 12x²,

we can integrate it once to obtain

y'(x) = 4x³ + C₁, where C₁ is a constant.

We integrate y'(x) once again to get

y(x) = x⁴ / 4 + C₁x + C₂, where C₂ is another constant.

Now, to find C₁ and C₂, we need to use the fact that the function

f(x) = 5 is tangent to y(x) at x = 1.

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a) p1 - p2 includes 0, this implies that there is no significant difference between the two population proportions.

b) p1 is significantly greater than population proportion p2.

c) p1 is significantly less than population proportion p2.

d) With replacement and Without replacement.

a) If the confidence interval for the difference in population proportions p1 - p2 includes 0, this implies that there is no significant difference between the two proportions, and any observed difference could be due to random chance.

b) If all the values of a confidence interval for two population proportions are positive, this implies that population proportion p1 is significantly greater than population proportion p2.

c) If all the values of a confidence interval for two population proportions are negative, this implies that population proportion p1 is significantly less than population proportion p2.

d) Sampling with replacement is when an item is selected, recorded, and then returned to the population before the next item is selected. Sampling without replacement is when an item is selected, recorded, and not returned to the population before the next item is selected. In the case of selecting two names from 10 notecards:

- With replacement: Pick a notecard, write down the name, return it to the pile, shuffle, and pick another notecard (it is possible to select the same name twice).
- Without replacement: Pick a notecard, write down the name, set it aside, and then pick another notecard from the remaining nine (each student can only be selected once).

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Answer:

C

Step-by-step explanation:

given x = a is a solution of f(x) then (x - a) is a factor

here the solutions, where the graph crosses the x- axis, are

x = - 4 , x = - 2 , x = - 1 , then the corresponding factors are

(x - (- 4)) , (x - (- 2)) , (x - (- 1)) , that is

(x + 4) , (x + 2) , (x + 1)

f(x) is then the product of these factors, that is

f(x) = (x + 2)(x + 1)(x + 4) ← in factored form

Answer:

  D) A″ (3, 2), B″ (3, 0), C″ (−1, 0), D″ (−1, 2)

Step-by-step explanation:

You want the coordinates of points A", B", C", D" after A(-5, 1), B(-5, 3), C(-1, 3), and D(-1, 1) have been translated by <2, -3> and reflected across the origin.

The translation transformation is given in the problem statement:

  (x, y) ⇒ (x +2, y -3)

The reflection transformation is ...

  (x, y) ⇒ (-x, -y) . . . . . . . reflection across the origin

The composition of these transformations is ...

  (x, y) ⇒ (-(x +2), -(y -3))

  (x, y) ⇒ (-x-2, -y+3)

Using this transformation on the given points, we find ...

  A(-5, 1) ⇒ A"(-(-5)-2, -1+3) = A"(3, 2)

  B(-5, 3) ⇒ B"(-(-5)-2, -3+3) = B"(3, 0)

  C(-1, 3) ⇒ C"(-(-1)-2, -3+3) = C"(-1, 0)

  D(-1, 1) ⇒ D"(-(-1)-2, -1+3) = D"(-1, 2)

Answer:

-40m = 59.2

Step-by-step explanation:

simplify

Answer:

-40m + 59.2

Step-by-step explanation:

Distribute

-40m + 59.2

If you're solving for m then set the equation equal to 0 and solve.

-40m + 59.2 = 0

-40m = -59.2

m = 37/25

Answer:

Law of Syllogism

Step-by-step explanation:

Answer: Equation using slope intercept from y= -(5/2)x +26

Step-by-step explanation:

Write an equation of the line (in slope-intercept form) that is perpendicular to the line y=(2/5)x-(1/5) and contains the point (-4,16).

The line given is y=(2/5)x-(1/5)

Which we can rewrite in y= mx+b form as

y=(2/5)x-(1/5)

So slope of this line is (2/5)

A line perpendicular will have slope = -(5/2) ,  Which is (1/m)

Equation of new line will be

y = -(5/2)x +b

Now we need to find b

Plug in Point (-4,16)

Replace with the (-4,16) values

16 = (5/2) (-4) +b

solve it, 16=(-10)+b

16+10=b

b=26

Equation using slope intercept from y= -(5/2)x +26

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By substituting the corner points into the objective function, we can compare the values of z and identify the minimum. The corner point with the lowest z value will give us the optimal solution.

To solve the given linear programming problem completely, we will follow the steps mentioned earlier. Let's go through the process in more detail:

Step 1: Identify the decision variables:

Let x1 and x2 be the decision variables representing the values we want to find that minimize z.

Step 2: Formulate the objective function:

The objective function is given as z = 5x1 + 4x2.

Step 3: Formulate the constraints:

The given constraints are:

6x1 + 2x2 ≤ 24

x1 + 2x2 ≤ 6

-x1 + x2 ≤ 1

x2 ≤ 2

Step 4: Combine all the constraints:

To combine the constraints, we rewrite them in standard form:

6x1 + 2x2 ≤ 24 ---> 6x1 + 2x2 + 0x3 + 0x4 = 24

x1 + 2x2 ≤ 6 ---> x1 + 2x2 + 0x3 + 0x4 = 6

-x1 + x2 ≤ 1 ---> -x1 + x2 + 0x3 + 0x4 = 1

0x1 + x2 ≤ 2 ---> 0x1 + x2 + 0x3 + 0x4 = 2

Step 5: Solve the linear programming problem:

To solve this linear programming problem, we can use various methods such as the Simplex method or graphical method. Here, we'll use the graphical method to find the optimal solution.

First, let's plot the feasible region by graphing the equations of the constraints:

Plotting 6x1 + 2x2 = 24:

x1 | x2

0 | 12

4 | 0

Plotting x1 + 2x2 = 6:

x1 | x2

0 | 3

6 | 0

Plotting -x1 + x2 = 1:

x1 | x2

-1 | 0

0 | 1

Plotting x2 = 2:

x1 | x2

0 | 2

Next, we need to find the feasible region by considering the overlapping shaded area formed by the inequalities. However, I cannot provide a visual representation here. Please refer to a graphing tool or software to plot the equations and find the feasible region.

Finally, we evaluate the objective function z = 5x1 + 4x2 at the corner points of the feasible region to determine the minimum value of z. Each corner point represents a specific combination of x1 and x2 within the feasible region.

By substituting the corner points into the objective function, we can compare the values of z and identify the minimum. The corner point with the lowest z value will give us the optimal solution.

Please note that without the graphical representation, I am unable to provide the exact numerical solution. I recommend using a graphing tool or linear programming software to visualize the feasible region and determine the optimal values of x1 and x2 that minimize z.

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9514 1404 393

Answer:

Step-by-step explanation:

The first inequality describes a line with negative slope and y-intercept -4. The solution space is above that line.

The second inequality describes a line with positive slope and y-intercept +1. The solution space is below that line.

Together, the lines make a sort of X on the graph. The resulting solution space will be in the right-side quadrant of that X. Any sufficiently small y-value for a sufficiently large x-value will be a solution. Any point to the left of x=-4 will not be a solution. Values in each category are listed above and shown on the attached graph.