The ocean tides near Carter Beach follow a repeating pattern over time, and can be
modeled using a cosine function as the amount of time between each low tide and
high tide is constant. On a given day, low tide occurred at 8:30 a.m. and high tide
occurred at 3:00 p.m. At high tide, the water level was 12 inches above the average
local sea level; at low tide it was 12 inches below the average local sea level. Assume
that high tide and low tide are the maximum and minimum water levels each day,
respectively.

People who fish in Carter Beach know that a certain species of fish is most plentiful
when the water level is increasing. Explain whether you would recommend fishing
for this species at 7:30 p.m. or 10:30 p.m. using evidence from the given context
above.

The number of djembe drum sold is 8

Profit is the money you have left after paying for business expenses. This means after deducting the money of expenses from the selling price , the remainder is profit.

Therefore , profit = selling price - cost price

set of claves = $5

set of maracas = $14

a drum = $16

Selling price of drum = 16 × x =16x

selling price of claves = 6×5 = 30

selling price of maracas = 14 × 12 = 168

total selling price =$( 16x+30+168)

cost price = 326-( 16x+30+168)

Therefore,

326 = 16x+30+168-(326-16x-30-168)

326 = 16x +30+168-326+16x+30+168

326 = 32x+60+336-326

326+326-336-60 = 32x

32x = 256

divide both sides by 32

x = 256/32

x = 8

Therefore the number of drums sold is 8

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The answer is option B: 0.040. When Z is a standard normal random variable, it means that Z has a mean of 0 and a standard deviation of 1. Therefore, P(-1.75 < Z < -1.25) represents the area under the standard normal curve between -1.75 and -1.25 standard deviations from the mean.

Using a standard normal distribution table or calculator, we can find that the area under the curve between -1.75 and -1.25 is approximately 0.040. Hence, the answer is option B: 0.040.
 To solve your question, we need to find the probability P(-1.75 ≤ Z ≤ -1.25) where Z is a standard normal random variable.

Step 1: Identify the given values
Z1 = -1.75
Z2 = -1.25

Step 2: Look up the Z-values in a standard normal table or use a calculator to find the corresponding probabilities
P(Z ≤ -1.75) = 0.0401
P(Z ≤ -1.25) = 0.211

Step 3: Use the properties of probabilities to find the required probability
P(-1.75 ≤ Z ≤ -1.25) = P(Z ≤ -1.25) - P(Z ≤ -1.75)
P(-1.75 ≤ Z ≤ -1.25) = 0.211 - 0.0401
P(-1.75 ≤ Z ≤ -1.25) = 0.1709

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According to the estimated model, holding all else constant, an additional year in age means the market value decreases by approximately $190 (0.019 x 1000).

The size of the house (X1) and the total number of rooms (X2) appear to be statistically significant (at the 0.05 level) in explaining the market value of residential property.

The proportion of the total variation in sales explained by the regression equation is 0.946.

The given F-value shows that the assessor can reject the null hypothesis that neither of the independent variables explains a significant (at the 0.05 level) proportion of the variation in income.

An approximate 95 percent prediction interval for the selling price of a 15-year-old house having 16.00 hundred sq. ft., 3 rooms, and an attached garage is (212.833, 244.525).

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a) The total amount of money earned is 7.30 dollars.

b) Max is wrong, it is possible to divide the money equally between Gwen and Max, even though the total amount is an odd number.

a) To find the total amount of money earned, we need to convert the number of quarters and dimes to dollars.

6 quarters = 6 * 0.25 = 1.50 dollars

8 dimes = 8 * 0.10 = 0.80 dollars

The total amount of money earned is:

5 dollars + 1.50 dollars + 0.80 dollars = 7.30 dollars

b) Max is incorrect. The total amount of money earned is an odd number ($7.30), which means it is impossible to divide it equally between two people in whole dollar amounts. However, it is possible to divide the total amount equally if we allow for fractions of a dollar.

For example, if we split the money equally, Gwen and Max would each get $3.65. This means that Gwen would get 3 dollars and 65 cents, while Max would also get 3 dollars and 65 cents.

Therefore, it is possible to divide the money equally between Gwen and Max, even though the total amount is an odd number.

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Answer:

If a = -2 and b = 3, then b^a can be calculated as follows:

b^a = 3^(-2)

To find the value of 3^(-2), we can use the rule that says:

a^(-b) = 1 / a^(b)

Thus,

3^(-2) = 1 / 3^2 = 1 / 9

Therefore, the value of b^a, or 3^(-2) is 1/9.

Step-by-step explanation:

To construct the incenter of a triangle, construct the angle bisectors of each angle of the triangle. Here are the steps to construct the incenter of a triangle:

Draw the three sides of the triangle using a straightedge.

Choose one of the angles of the triangle and draw its bisector. To do this, place the point of your compass on the vertex of the angle, and draw an arc that intersects both sides of the angle. Without changing the width of your compass, place it on each of the two points where the arc intersects the sides of the angle, and draw two more arcs that intersect. The point where these two arcs intersect is the point where the angle bisector meets the opposite side of the triangle.

Repeat step 2 for the other two angles of the triangle. You should now have three lines that intersect at a single point.

The point where all three angle bisectors intersect is the incenter of the triangle.

Note that the incenter of a triangle is the center of the circle that can be inscribed inside the triangle.

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(–2, 6) are the points that justify the shaded area

We can substitute the values of x and y from each point into the inequality and check if the inequality is satisfied or not.

Let's check each point:

For points (12, 6):

[tex](y+1)^2/6 -(x+2)^2/24\\ = (6+1)^2/6 - (12+2)^2/24 \\= 49/6 - 196/3 \\= -57.33[/tex]

Here, the value of the expression is less than 1, so this point does not justify the shaded area.

For points (–2, 6):

[tex](y+1)^2/6 -(x+2)^2/24\\ = (6+1)^2/6 - (-2+2)^2/24 \\= 49/6[/tex]

Here, the value of the expression is greater than or equal to 1, so this point does justify the shaded area.

For points (8, –6):

[tex](y+1)^2/6 -(x+2)^2/24 \\= (-6+1)^2/6 - (8+2)^2/24 \\= 25/6-100/24[/tex]

Here, the value of the expression is greater than or equal to 1, so this point does not justify the shaded area.

For point (–1, –2):

[tex](y+1)^2/6 -(x+2)^2/24 \\= (-2+1)^2/6 - (-1+2)^2/24 \\= 1/6 - 1/24 \\= 1/8[/tex]

Here, the value of the expression is less than 1, so this point does not justify the shaded area.

Therefore, the points that justify the shaded area are (–2, 6).

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Answer:

1.4

Step-by-step explanation:

a. The solution to the equation f - 13 = 51 is f = 64.

b. The solution to the equation x/10 = 4 is x = 40.

a. f - 13 = 51

Step 1: Add 13 to both sides to isolate f.

f - 13 + 13 = 51 + 13

Step 2: Simplify.

f = 64

Step 3: Check the answer by substituting f = 64 back into the original equation.

64 - 13 = 51

51 = 51

The answer checks out.

b. (x/10) = 4

Step 1: Multiply both sides by 10 to isolate x.

10(x/10) = 4(10)

Step 2: Simplify.

x = 40

Step 3: Check the answer by substituting x = 40 back into the original equation.

40/10 = 4

4 = 4

The answer checks out.

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The equation of circles that have a diameter of 12 units and a center that lies on the y-axis is (x-0)² + (y-3)² = 6²

The standard form for finding the equation of a circle is expressed as;

(x-a)² + (y-b)²=r²

where;

(a, b) is the center of the circle

r is the radius of the circle

Given the following diameter = 12 units

radius = 12/2 = 6 units

If the centre lies on the y-axis, the center will be at (0, 3)

Substituting into the formula, we will have (x-0)² + (y-3)² = 6² equivalent to x²+ (y-3)² = 36

Hence, the equation of circles that have a diameter of 12 units and a center that lies on the y-axis is (x-0)² + (y-3)² = 6²

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Answer:

1) The sum of the distances between the points on the ellipse and the foci is constant, whereas the difference between the distances between the points on the hyperbola and the foci is constant.

2) The equation of an ellipse is in the form (x^2/a^2) + (y^2/b^2) = 1, where a and b are the lengths of the semi-major and semi-minor axes, respectively. In contrast, the equation of a hyperbola is in the form (x^2/a^2) - (y^2/b^2) = 1, where a and b are also the lengths of the semi-major and semi-minor axes, respectively, but the difference between a and b determines the shape of the hyperbola.

Step-by-step explanation:

The data plot in the line plot are skewed right

Given data ,

Let the data be shown in the graph be a line plot

Now , A line plot, also known as a dot plot, is a graphical representation of data where data points are shown as dots along a number line.

A right-skewed line plot would have more dots towards the lower end of the number line, with fewer dots towards the higher end.

From the line plot , we can see that most data points are placed on the lower end of the line plot

Hence , the data is skewed right

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When a right rectangular prism is sliced in a way that the plane passes through three intersecting edges, cutting off a corner of the prism, the resulting cross section is a triangle.

Imagine a rectangular prism with the vertices A, B, C, D and H in order to understand this. Assume that the edges AE, and AG are crossed by the plane as it cuts off the corner indicated by vertex A. The triangle formed by the intersection of the plane and the prism will therefore have vertices at positions EFG.

The resulting cross section is a triangle EFG, which is a part of the original rectangular prism. The shape and size of the triangle will depend on the dimensions and orientation of the prism, as well as the specific location where the plane intersects the edges.

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Answer: 6.25

Step-by-step explanation:

You have to divided 43.75 ounces by 7 which equals 6.25

The lengths of the longest sides of the triangles are 40 and 16.

The lengths of each side of the triangle is calculated as follows;

Let the longest side of the similar triangle = L

then the longest side of the triangle = 3L - 8

The value of L or the longest side is calculated by applying congruency theorem for the similar triangles.

L/6 = (3L - 8)/15

15L = 6 (3L - 8)

15L = 18L - 48

15L - 18L = -48

-3L = -48

L = 48/3

L = 16

The second triangle, = 3L - 8

= 3 x 16 - 8

= 40

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1.) The probability that the spinner will land on C would be = 1/8

2.) The probability of not spinning on C would be = 7/8

To calculate the probability the formula that should be used would be as follows;

Probability = possible outcome/sample space.

For question 1.)

sample space = 8

possible outcome = 1

probability = 1/8

For question 2.)

sample space = 8

possible outcome = 7

probability = 7/8

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Therefore, the statement is false in general, and the equality Dkf(x, y, z) = fz(x, y, z) holds only when k = z.

The symbol Dk denotes the k-th partial derivative with respect to the variable k, so Dkf(x, y, z) denotes the partial derivative of f(x, y, z) with respect to the variable k.

On the other hand, fz(x, y, z) denotes the partial derivative of f(x, y, z) with respect to the variable z.

These two partial derivatives are generally not equal. For example, consider the function f(x, y, z) = x² + y² + z². Then:

Dxf(x, y, z) = 2x

Dyf(x, y, z) = 2y

Dzf(x, y, z) = 2z

In this case, we have Dzf(x, y, z) = fz(x, y, z) = 2z, so the statement is true when k = z.

However, if we consider k = x or k = y, then the statement is false in general. For example, when k = x, we have:

Dkf(x, y, z) = Dxf(x, y, z) = 2x

fz(x, y, z) = partial derivative of f with respect to z = 2z

Since 2x is generally not equal to 2z, the statement is false when k = x.

Similarly, the statement is false when k = y, because Dyf(x, y, z) is generally not equal to fz(x, y, z).

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Answer: 60 seconds

Step-by-step explanation:

Answer:

Step-by-step explanation:

60 seconds

The nature of the roots of a quadratic equation in which case, the discriminant is; 81 is; The roots are 2 distinct real roots.

It follows from the task content that the nature of the roots of a quadratic equation in which case, the discriminant is 81 is to be determined.

Recall; when the discriminant of a quadratic equation is greater than 0; the equation is said to have two real distinct roots.

Ultimately, for the given equation in discuss whose discriminant is 81 is such that; it has two real distinct roots.

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The number of seconds where the football hit the ground is 2 seconds

From the question, we have the following parameters that can be used in our computation:

The graph

The number of seconds where the football hit the ground is when the graph intersects with the x-axis at the second time

In this case, the point is (2, 0)

Also, the seconds is represented by x

So, we have

x = 2

Hence, the seconds the football hits the ground is 2

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The key features of f(x) = 2√[x + 7] - 1 are

From the question, we have the following parameters that can be used in our computation:

f(x) = 2√[x + 7] - 1

The graph of the function is attached, where we have the following features

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1. Shade Tolerance: The blend needs to score at least 300 points for shade tolerance.
Total: x * Shade Tolerance points + y * Shade Tolerance points ≥ 300
2. Traffic: The blend needs to score at least 400 points for traffic.
Total: x * Traffic points + y * Traffic points ≥ 400
3. Drought Resistance: The blend needs to score at least 750 points for drought resistance.
Total: x * Drought Resistance points + y * Drought Resistance points ≥ 750

To determine the number of pounds of each seed that should be in the blend, we need to use a system of equations. Let x be the number of pounds of type A seed and y be the number of pounds of type B seed in the blend.

The shade tolerance score for the blend can be expressed as:

x(80) + y(200) ≥ 300

The traffic score for the blend can be expressed as:

x(120) + y(100) ≥ 400

The drought resistance score for the blend can be expressed as:

x(200) + y(150) ≥ 750

We also know that the total amount of seed in the blend is x + y.

We want to minimize the costs of the blend, so we can set up the following equation for the total cost:

1x + 2y = Total cost

Now we can solve this system of equations using any method we prefer. One common method is to use substitution.

First, we can use the shade tolerance equation to solve for y in terms of x:

y ≥ (300 - 80x)/200

Next, we can substitute this expression for y in the traffic equation:

x(120) + ((300 - 80x)/200)(100) ≥ 400

Simplifying and solving for x, we get:

x ≥ 1.5

So the minimum amount of type A seed needed in the blend is 1.5 pounds. We can use this value to solve for y:

y ≥ (300 - 80(1.5))/200 = 1.05

So the minimum amount of type B seed needed in the blend is 1.05 pounds.

Since we want to minimize costs, we want to use the minimum amount of each seed necessary to meet the requirements. Therefore, we should use 1.5 pounds of type A seed and 1.05 pounds of type B seed in the blend.

We need the values for Shade Tolerance, Traffic, and Drought Resistance points for both Type A and Type B seeds to set up the inequalities. Please provide the points for each seed type, and I can help you determine the number of pounds needed for each seed in the blend.

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a. The prime numbers in this list are 5 and 7. b. There are no prime numbers in this list. c. The prime numbers in this list are 31 and 17. d. The prime numbers in this list are 61 and 2.

a. In the list 5, 7, 12, 11, the prime numbers are 5, 7, and 11. Prime numbers are numbers greater than 1 that have only two factors, 1 and themselves.

b. In the list 14, 6, 3, the prime number is 3. The other numbers have more than two factors, making them not prime.

c. In the list 31, 17, 9, 15, the prime numbers are 31 and 17. The numbers 9 and 15 have more than two factors, so they are not prime.

d. In the list 782, 61, 2, the prime numbers are 61 and 2. Number 2 is the smallest prime number, and 61 has only two factors, 1 and 61. The number 782 has more than two factors, so it is not prime.

To summarize, the prime numbers in each list are: a. 5, 7, 11; b. 3; c. 31, 17; d. 61, 2.

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In statistical analysis, variables are often used to describe and explain relationships between different variables or to predict outcomes based on certain variables.

In statistics, a variable is a characteristic or attribute that can take on different values or levels for different individuals or objects being studied. Variables can be classified as either quantitative or qualitative.

Quantitative variables are numerical in nature and can be further classified as discrete or continuous. Discrete variables can only take on specific values (such as the number of children in a family), while continuous variables can take on any value within a certain range (such as a person's height or weight).

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The value of the product is 1/4

To determine the value of the product, we need to take note that fractions are described as the part of a whole number, element, or variable.

In mathematics, there are different types of fractions, namely;

From the information given, we have that;

1/4 × 25/25

Now, multiply the numerators

25/4(25)

Multiply the denominators

25/100

Divide the values

1/4

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Answer:

Hope this helps!

Step-by-step explanation:

a) The probability of picking a blue tile = 1/5

b) The probability of picking a yellow tile = 1/2

c) The probability of picking a red tile = 3/10

Given data ,

Let the total number of tiles in the bag = 10 tiles

The number of blue tiles = 2

The number of red tiles = 3

The number of yellow tiles = 5

So , probability of picking a blue tile = 2/10 = 1/5

Now , probability of picking a yellow tile = 5 / 10 = 1/2

And , probability of picking a red tile = 3/10

Hence , the probability is solved

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Step-by-step explanation:

this is just plain multiplication.

we know how far it travels on one day.

that multiplied by 365.25 is his fast it travels in one year.

that multiplied by 800 gives us how fast it travels in 800 years.

5.782 × 10⁸ × 365.25 × 800 = 5.782×365.25×800 × 10⁸ =

= 1,689,500.4 × 10⁸ = 1.6895004 × 10¹⁴ km

Answer: x^2 + bx/a + c/a = 0

Step-by-step explanation:

the step simplifies the division of a:

0 divided by anything is still zero, so you can remove the a denominator

a/a = 1, and is therefore irrelevant, so ax^2 / a = x^2

the rest can stay