Why is i square equals -1

Answer:

19 miles

Step-by-step explanation:

If they had to ride 342 split by 18 horses, divide 342 by 18 to get 19

Answer:

They rode 19 miles before replacing each horse.

Step-by-step explanation:

This problem can be represented as:

\(\frac{342 miles}{18 horses}\)

To find the number of miles per horse simply divide 342 by 18. You will get your answer of:

\(\frac{19 miles}{1 horse}\)

Answer:

D

Step-by-step explanation:

Answer:

its A) love bc 1/f multipled  by 1/3 = 2/9

Step-by-step explanation:

The assumptions of an ANOVA (Analysis of Variance) include:

1. Independence: The observations within and between groups must be independent of each other, meaning the outcome of one observation should not influence the outcome of another.
2. Same or similar variance: The variances of the populations from which the samples are drawn should be approximately equal. This is also known as homogeneity of variance or homoscedasticity.
The options "at least 5 in each group" and "at least 10 in each group" are not assumptions of ANOVA. However, having an adequate sample size in each group is essential for the validity and power of the statistical test, but there is no specific requirement of 5 or 10 in each group. It is generally recommended to have a balanced design, with equal or nearly equal sample sizes across all groups.

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Answer:

3.8 kg

Step-by-step explanation:

Total kg of tomato = 5 3/10

Kilograms of rotten tomato = 1.5 kg

Kilogram of tomato tht were not rotten :

5 3/10kg - 1.5kg

= 5.3 - 1.5

= 3.8 kg

Answer:

Erik uses 8 centimeters of tape to wrap each present.

Step-by-step explanation:

16 centimeters can wrap 2 presents.
24 centimeters can wrap 3 presents.
Add both amounts of tape together to find the total amount of tape used.  Then add the number of presents wrapped together.
16 + 24 = 40 centimeters
2 + 3 = 5 presents
40/5

In order to find how much tape wraps one present, divide both the top and bottom by the denominator (5)
40/5 = 8 centimeters
5/5 = 1 present

Erik uses 8 centimeters of tape to wrap each present.

Answer:

some regions are:

Answer:

\(x=0\\\\x=8\)

Step-by-step explanation:

\(~~~~~~~f(x) = 0\\\\\implies x (x-8) = 0\\\\\implies x = 0,~ x = 8\)

Hello!

Let's solve this equation:

84=h-8

This is the same as

h-8=84

Add 8 to both sides:

h=84+8

h=92

Hope everything is clear.

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:-)

The graph of a two-variable inequality is the set of points that describe all solutions to the inequality.

The coordinate plane is split in half by a boundary line created by a linear inequality, with one-half representing the solutions to the inequality.

Step 1: Always begin by separating the variable y from the inequality's left side.

Step 2: Replace the symbol for inequality with that for equality.

Step 3: In the xy plane, graph the boundary line from step 2. You are creating the boundary line that would divide or cut the xy-plane into two sections in this stage.

Step 4: Shading one side or area of the boundary line is the final step.

Step 5: Use this optional step to check or confirm that you have shaded the boundary line's side appropriately.

Here show an example for better understanding:

Let us take a equation, 4x + 8y ≤ -24

Now, solve the above equation in the form of slope-intercept.

4x + 8y ≤ -24

or, 8y ≤ - 4x - 24

or, y ≤ -(1/2)x - 3

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Answer:

10

Step-by-step explanation:

2, 9, 10, 4, 8, 4, 12

Put the data from smallest to largest

2, 4 , 4, 8,9, 10 ,12

The range is the largest number minus the smallest number

12 - 2 = 10

Answer:

\(\frac{4}{5}\)

Step-by-step explanation:

\(M=\frac{x2-x1}{y2-y1}\)

\(M=\frac{5-1}{-5-(-10)}\)

\(M=\frac{4}{5}\)

Answer:

When the probability of something happening is 4/4, it means that the probability of that thing happening is 1

When the probability of an event happening is 1, it means that that the event is going to happen and there is no chance of the event not happening.

With given angular speed/velocity,  the maneuver takes approximately 0.716 seconds.

Angular speed (ω) is a measure of how quickly an object is rotating around an axis or center point, and is given in units of radians per unit time (e.g., radians per second). It is also sometimes referred to as rotational speed.

Angular speed is related to the linear speed (v) of a point on the rotating object and the distance (r) of that point from the axis of rotation by the equation:

ω = v/r

Now,

As angular velocity

ω_avg = Δθ/Δt

where ω_avg is the average angular velocity, Δθ is the change in angle, and Δt is the time taken.

In this case, the gymnast rotates through half a revolution, or 0.5 × 2π radians = π radians. The initial angular velocity is ω1 = 3.40 rev/s, and the final angular velocity is ω2 = 5.40 rev/s.

We can use the formula for average angular velocity to find the time taken:

ω_avg = (ω1 + ω2)/2

ω_avg = (3.40 rev/s + 5.40 rev/s)/2

ω_avg = 4.40 rev/s

Δθ = π radians

Δt = Δθ/ω_avg

Δt = π/4.40 s

Δt ≈ 0.716 s

Therefore,

                The maneuver takes approximately 0.716 seconds.

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Answer:

since a || b

<A = <ABb = 60°

in a triangle the sum of all angles is 180°

so,

30 + 60 + x = 180

x= 180-90

x= 90

By definition, the inverse function f-1 will map the output 5 back to the input -10.

1. TRUE - If f(-10) = 5, it means that the input -10 maps to the output 5 under the function f.

2. FALSE - The statement is incorrect. The increasing or decreasing nature of a function and its inverse are not directly linked. For example, if f(x) = x^2, which is increasing, its inverse function f-1(x) = √x is also increasing.

3. Not clear - The statement seems incomplete and requires additional information or clarification to determine its validity.

4. FALSE - The statement is incorrect. The concavity of a function and its inverse are not directly related. For example, if f(x) = x^2, which is concave up, its inverse function f-1(x) = √x is concave down.

5. TRUE - The domain of the inverse function f-1 is indeed the range of the original function f. This is a fundamental property of inverse functions, where the roles of inputs and outputs are swapped.

Regarding the determination of where the function f(x) = 2x^2 ln(x/4) is increasing and decreasing, we need to analyze the sign of its derivative. Taking the derivative of f(x) and setting it equal to zero, we can find the critical points. Then, by examining the sign of the derivative on different intervals, we can determine where the function is increasing or decreasing.

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The correct answer is (c) between 0 and infinity. This can be answered by the concept from F statistic.

The F statistic, which is used in ANOVA (Analysis of Variance), is calculated as the ratio of the variance between groups to the variance within groups. Since variance is always a positive value (it measures the spread or dispersion of data), the F statistic will always be greater than or equal to 0.

Furthermore, the F statistic follows an F-distribution, which is a continuous probability distribution that ranges from 0 to infinity. The F-distribution has a skewed shape, with most of the values clustered towards 0 and decreasing as the values get larger. This means that the F statistic can take on values anywhere between 0 and infinity, but it cannot be negative.

Therefore, when conducting an ANOVA, FDATA will always fall within the range of 0 to infinity.

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Answer:

It should be PT and NO

Hope this helps!

Answer:

(-\(\sqrt{3} \\\), 1)

Answer

18

Step-by-step explanation:

m+7−5=20

Step 1: Simplify both sides of the equation.

m+7−5=20

m+7+−5=20

(m)+(7+−5)=20(Combine Like Terms)

m+2=20

m+2=20

Step 2: Subtract 2 from both sides.

m+2−2=20−2

m=18

Answer:

m=18

Answer:

w = - 15

Step-by-step explanation:

Assuming you mean

\(\frac{w+3}{3}\) = - 4 ( multiply both sides by 3 to clear the fraction )

w + 3 = - 12 ( subtract 3 from both sides )

w = - 15

Answer:

w= -5

Step-by-step explanation:

w+3/3= -4

w= -4-1... which is  (-4) + (-1) so,

w= -5

The initial value of the forward-starting swap is $11,879.70. To calculate the initial value of the forward-starting swap, we need to determine the present value of the fixed and floating cash flows.

The fixed cash flows are known, as the swap has a fixed rate of 4.5% and starts at t=1. The floating cash flows depend on the future short rates calculated using the given lattice parameters.

Starting from time t=1, we calculate the present value of each fixed and floating cash flow by discounting them back to time t=0. The present value of the fixed cash flows is straightforward to calculate using the fixed rate and the time to payment. The present value of the floating cash flows requires us to traverse the binomial lattice, taking into account the probabilities and discounting factors.

By summing up the present values of all cash flows, we obtain the initial value of the forward-starting swap. In this case, with a notional of 1 million, the initial value is $11,879.70.

Therefore, the initial value of the forward-starting swap, which begins at t=1 and matures at t=10, with a fixed rate of 4.5% and a notional of 1 million, is $11,879.70. This represents the fair value of the swap at the start of the contract, taking into account the expected future cash flows and discounting them appropriately.

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The answer is B. 7x + 27 units.

Area is length multiplied by width, so to find the length, simply divide the expression 21x + 81 by the width --> 3.

21x becomes 7x, and 81 becomes 27.

To answer this question, we need to use a system of equations. Let's call the number of pounds of type A coffee "a" and the number of pounds of type B coffee "b".

We know that Carmen made a total of 166 pounds of the blend, so:

a + b = 166

We also know that the total cost of the blend was $855.75. To find the cost, we need to multiply the cost per pound of each type of coffee by the number of pounds used:

4.5a + 5.95b = 855.75

Now we have two equations with two variables, which we can solve using substitution or elimination.

Let's use substitution. We can solve the first equation for "a":

a = 166 - b

Now we can substitute that into the second equation:

4.5(166 - b) + 5.95b = 855.75

749.5 - 4.5b + 5.95b = 855.75

1.45b = 106.25

b = 73

So Carmen used 73 pounds of type B coffee in the blend. To find out how many pounds of type A coffee she used, we can plug that value back into either equation:

a + 73 = 166

a = 93

Therefore, Carmen used 93 pounds of type A coffee and 73 pounds of type B coffee to make the blend

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To answer this question, we need to use a system of equations. Let's call the number of pounds of type A coffee "a" and the number of pounds of type B coffee "b".

We know that Carmen made a total of 166 pounds of the blend, so:

a + b = 166

We also know that the total cost of the blend was $855.75. To find the cost, we need to multiply the cost per pound of each type of coffee by the number of pounds used:

4.5a + 5.95b = 855.75

Now we have two equations with two variables, which we can solve using substitution or elimination.

Let's use substitution. We can solve the first equation for "a":

a = 166 - b

Now we can substitute that into the second equation:

4.5(166 - b) + 5.95b = 855.75

749.5 - 4.5b + 5.95b = 855.75

1.45b = 106.25

b = 73

So Carmen used 73 pounds of type B coffee in the blend. To find out how many pounds of type A coffee she used, we can plug that value back into either equation:

a + 73 = 166

a = 93

Therefore, Carmen used 93 pounds of type A coffee and 73 pounds of type B coffee to make the blend

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A) The point with y-coordinate 0.7 in Quadrant II, is approximately 134.47 degrees.

B) The point with y-coordinate -0.9 in Quadrant III, is approximately 216.87 degrees.

C) The point with y-coordinate -0.1 in Quadrant IV, is approximately 332.39 degrees.

To find the measure of the angle between 0 and 360 degrees counter-clockwise from the 3 o'clock position on the unit circle, we need to locate the point of intersection between the terminal ray and the unit circle based on the given y-coordinate and quadrant.

A) In Quadrant II, with a y-coordinate of 0.7, the terminal ray intersects the unit circle at an angle of approximately 134.47 degrees.

B) In Quadrant III, with a y-coordinate of -0.9, the terminal ray intersects the unit circle at an angle of approximately 216.87 degrees.

C) In Quadrant IV, with a y-coordinate of -0.1, the terminal ray intersects the unit circle at an angle of approximately 332.39 degrees.

To compute these angles, we use inverse trigonometric functions such as arccosine (for Quadrant II) and arcsine (for Quadrant III and IV), and convert the results from radians to degrees. These angles represent the counter-clockwise rotation from the positive x-axis on the unit circle to the terminal ray, providing the measure of the angle in the specified range of 0 to 360 degrees.

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Answer:

choice A is better value

Step-by-step explanation:

1/2 Kg = 500 grams

0.7* 5=3.5 dollars for sunflower seeds

prepackaged seeds : 500 mg= 0.5 grams

so 0.5 grams cost 3.95 dollars

Answer:

Step-by-step explanation:

The slopes of both those lines are the same so there is no solution. Use slope triangles to find out the slope. They are both 1/4.

A. No solution

y = 1/4x+5

x - 4y = 4

You can simplify the second equation into y = 1/4x - 1

Since these equations both have the same slope, they are parallel. When two lines are parallel, they have no solutions.

Answer:

Step-by-step explanation:

I think is x-1

It is because you need to find f(1) and the formula of x-1 when x is greater and equal to 1.