TRIGINOMETRY HELP PLS, Q 9-13 with working out

Answer:

\(-9x-10y\)

Step-by-step explanation:

\(10yi^2-9x \\ \\ =10y(-1)-9x \\ \\ =-9x-10y\)

A p-value for correlation which is statistically significant implies the correlation is due to random chance. The correct solution to this is False.

A p-value for correlation which is statistically significant implies that it is unlikely that the observed correlation is due to random chance alone. In other words, it suggests that there is evidence to support the presence of a true correlation between the two variables being studied. The p-value is a measure of the strength of evidence against the null hypothesis (i.e., that there is no correlation between the two variables), and a smaller p-value indicates stronger evidence against the null hypothesis.

Interpretation of the intercept: The intercept in a linear regression model represents the value of the dependent variable when all independent variables are equal to zero. It is the value of the dependent variable when there is no effect of the independent variable(s) on it. For example, in a regression model predicting height based on age, the intercept would represent the expected height of a person at age zero (which is not a realistic scenario).

Interpretation of a residual: A residual is the difference between the actual observed value of the dependent variable and the predicted value of the dependent variable based on the regression model. It represents the part of the dependent variable that the model was not able to explain. A positive residual means that the actual value is greater than the predicted value, while a negative residual means that the actual value is smaller than the predicted value.

Interpretation of r-squared: R-squared is a measure of how much of the variation in the dependent variable is explained by the independent variable(s) in the regression model. It ranges from 0 to 1, with higher values indicating a better fit of the model to the data. Specifically, it represents the proportion of the total variation in the dependent variable that is explained by the independent variable(s) in the model. For example, if r-squared is 0.75, it means that 75% of the variability in the dependent variable is explained by the independent variable(s) in the model.

Interpretation of the slope: The slope in a linear regression model represents the change in the dependent variable that is associated with a one-unit increase in the independent variable, holding all other variables constant. It reflects the average change in the dependent variable for each unit change in the independent variable. For example, in a regression model predicting height based on age, the slope would represent the average change in height for each additional year of age.

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This sequence is a geometric sequence, and hence

Answer:The third statement is true: The graph of y=log (x) + 4 is the graph of y=log(x) translated 4 units up.

Step-by-step explanation:

Using translation concepts, it is found that the graph of y=logx - 4 is the graph of y = logx translated 4 units right.

A translation is represented by a change in the function graph, according to operations such as multiplication or sum/subtraction in it's definition.

here, we have,

In this problem, the parent function is:

y=logx

The translated function is given by:

y=logx - 4

now, here, we have to find the translation, which is done in the transformation of y=logx to y=logx - 4

here, we noticed that,

The change was in the domain, in which x→x-4 , which means that the function was translated 4 units right.

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therefore, arc AB is a semicircle since it subtends an angle of 180degree at center Arc Length CD = (2 * 22/7 * radius) * (55 / 360)

Given that AB And BE are diameter of a circle p, we can say that angle AEB is right angle

What exactly is circle?

A circle is a two-dimensional geometric figure that is defined as the set of all points in a plane that are equidistant from a given point called the center of the circle. The distance between the center and any point on the circle is called the radius of the circle.

To find the measure of an arc given its diameter and an angle, we can use the formula:

Define Diameter?

A diameter is a straight line segment that passes through the center of a circle or sphere and whose endpoints lie on the circle or sphere. It is also the longest chord of the circle or sphere.

Arc Length = (2 * pi * radius) * (angle / 360)

where pi = 22/7 and diameter = 2 * radius.

if BPC = 55 degrees and DPE = 60 degrees, we can find the measure of arc CD as follows:

Radius = AB/2 = BE/2

Angle BPC = 55 degrees

Arc Length CD = (2 * 22/7 * radius) * (55 / 360)

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Answer: H

Step-by-step explanation:

We can see this rectangular prism will have side lengths of 5, 3, 7.

So we can use the fact Surface Area = 2(lh+wh+lw) to get:

2(15 + 35 + 21) = 2(71) = 142

Hey I dont know that answer but if you download Gaumath and take a picture of the problem the tutors on there will help you for free

Answer:

Question 2 is 6

Step-by-step explanation:

I don’t understand what your asking on if you can simplify what is the GCF

x intercept is 9/4 and y intercept is -51/4 for equation 9x+4y=51.

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

Given equation is nine times of x plus four y equal to fifty one

9x+4y=51

We have to convert this equation to slope intercept form

4y=51-9x

4y=9x-51

Divide both sides by 4

y=9/4x-51/4

x intercept is 9/4 and y intercept is -51/4

Hence x intercept is 9/4 and y intercept is -51/4 for equation 9x+4y=51.

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Okay, it seems like you want to analyze a sample of 16 babies based on their weight.

The information you provided states that the Center for Disease Control and Prevention reports that 25% of baby boys aged 6-8 months in the United States weigh more than 20 pounds.

However, you haven't mentioned the specific question or analysis you want to perform on the sample. Could you please clarify what you would like to know or do with the given information?

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Distance can be defined as the amount of ground covered (traveled) by a physical object over a specific period of time and speed, regardless of its direction, starting point or ending point.

Mathematically, the distance (traveled) by a physical object can be calculated by using this formula:

Distance = speed × time

Making time the subject of formula, we have:

Time = distance/speed

Next, we would calculate the amount of time it will take for the two couriers to meet:

t = d/(Vm + Vn)

t = 8/(1 + 3)

t = 8/4

Time, t = 2 hours.

For the meeting time, we have:

Meeting time = 8:00 AM + 2 hours

Meeting time = 10:00 AM.

For the distance from M, we have:

Distance = 1 × 4

Distance = 4 km.

For the distance from N, we have:

Distance = 3 × 4

Distance = 12 km.

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Complete Question:

Two couriers leave two cities M and N(N is west of M) distant from each other 8kms and both go east. The one from M leaves at 6:00am and goes 1k/h and the one from N leaves at 8:00am and walks 3k/h. At what time did they meet and at what distance from M and N?

Answer:

5<x<19

Step-by-step explanation:

Answer

Answer:

A scatter plot can also be useful for identifying other patterns in data. We can divide data points into groups based on how closely sets of points cluster together. Scatter plots can also show if there are any unexpected gaps in the data and if there are any outlier points

pls mark as brainliest answer

Step-by-step explanation:

The reason is discussed below:

A scatter plot is a means to represent data in a graphical format. A simple scatter plot makes use of the Coordinate axes to plot the points, based on their values.

A scatter plot helps find the relationship between two variables. This relationship is referred to as a correlation. Based on the correlation, scatter plots can be classified as follows.

A scatter plot might be helpful for spotting further data trends.

Based on how tightly sets of data points cluster together, we can categorize the data points into groups.

Additionally, scatter plots can reveal any unexpected gaps in the data as well as any outlier spots.

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It is given that the radius increases at the rate of 7 cm per second, that is 7 cm in 1s.

It follows that after 4s since backing away, the increase in radius is:

Add the increase to the initial length of the radius:

Hence, the radius 4s after you start backing away is 33 cm.

After 7s, the increase in radius will be:

Add this increase to the initial length of the radius:

Hence, the radius 7s after you start backing away is 54 cm.

1727.88 cm³/sec is the volume of the cone .

How much volume do a cone and a cylinder have?

Volume of cone V = 1/3πr²h

               r/h = 15/20 = 3/4

            V = 1/3πr²h

dv/dt = 1/3 [π[r²dh/dt + 2rhdr/dt]

   dr/dt = dh/dt = 2cm/sec

   r = 15 cm  h = 20 cm

 dv/dt = π/3[15² × 2 + 2 × 15 × 20 × 2 ]

   550π  = 1727.88 cm³/sec

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To find the probability that the ratio of the shorter to the longer segment is less than 1/4 when a point is chosen randomly on a line segment of length 'l,' we can consider the following approach.

Let's denote the position of the chosen point by 'x' where 0 ≤ x ≤ l represents the distance from one end of the line segment.

The ratio of the shorter segment to the longer segment will be less than 1/4 if 'x' lies in the interval (0, l/5).

This is because any point within this interval will divide the line segment into two parts such that the shorter segment is less than 1/4 of the longer segment.

The length of the interval (0, l/5) is l/5, and the total length of the line segment is 'l.' Therefore, the probability of choosing a point within the interval (0, l/5) is given by (l/5) / l = 1/5.

Hence, the probability that the ratio of the shorter to the longer segment is less than 1/4 is 1/5 or 0.2.

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The mean of the sampling distribution of the sample mean is 1640.

a. To get fy|2(y), we can use the binomial distribution formula:

fy|2(y) = (5 choose y) * (0.995^y) * (0.005^(5-y))

For y = 0:

fy|2(0) = (5 choose 0) * (0.995^0) * (0.005^5) = 0.005^5 ≈ 0.00000000003125

For y = 1:

fy|2(1) = (5 choose 1) * (0.995^1) * (0.005^4) ≈ 0.00000007875

For y = 2:

fy|2(2) = (5 choose 2) * (0.995^2) * (0.005^3) ≈ 0.0001974375

For y = 3:

fy|2(3) = (5 choose 3) * (0.995^3) * (0.005^2) ≈ 0.00131958375

For y > 3, fy|2(y) = 0, as it is not possible to identify more than 3 defective items.

b. To get E(Y|X=2), we can use the formula:

E(Y|X=2) = X * P(Y = 1|X=2) + (5 - X) * P(Y = 0|X=2)

For X = 2:

E(Y|X=2) = 2 * P(Y = 1|X=2) + (5 - 2) * P(Y = 0|X=2)

= 2 * (0.992 * 0.005^1) + 3 * (0.008 * 0.005^0)

≈ 0.00994

V(Y|X=2) can be calculated as:

V(Y|X=2) = X * P(Y = 1|X=2) * (1 - P(Y = 1|X=2)) + (5 - X) * P(Y = 0|X=2) * (1 - P(Y = 0|X=2))

For X = 2:

V(Y|X=2) = 2 * (0.992 * 0.008) * (1 - 0.008) + 3 * (0.008 * 0.992) * (1 - 0.992)

≈ 0.00802992

b. Here, a random sample of 150 with a sample variance of 140, we can use the sample variance as the point estimate for the population variance:

a. The point estimate of the population variance is 140.

b. The mean of the sampling distribution of the sample mean can be calculated using the formula:

Mean of sampling distribution of sample mean = Population mean = 1640

Therefore, the mean of the sampling distribution of the sample mean is 1640.

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Answer:

100

Step-by-step explanation:

A) We round the number up to the nearest hundred if the last two digits in the number are 50 or above.

B) We round the number down to the nearest hundred if the last two digits in the number are 49 or below.

C) If the last two digits are 00, then we do not have to do any rounding, because it is already to the hundred.

In this case, Rule B applies and 106 rounded to the nearest hundred is 100.

Answer:

106 rounded to the nearesth hundreth is 100

Step-by-step explanation:

this is bc 6 is closer to 100 than 200

An array of 1 to 100 in C can be created using the bag ADT.

To create an array of 1 to 100 in C using the bag ADT, you would first need to define the bag ADT data structure. The bag ADT is a collection that allows for adding items to the collection, removing items from the collection, and checking the number of items in the collection.

Here is an example of how you can create an array of 1 to 100 using the bag ADT in C:

1. Define the bag ADT data structure:

```
typedef struct {
   int data[100];
   int count;
} bag;
```

This structure contains an array of 100 integers and a count variable that keeps track of the number of items in the bag.

2. Create a function to initialize the bag:

```
void init(bag *b) {
   b->count = 0;
}
```

This function initializes the count variable to 0.

3. Create a function to add items to the bag:

```
void add(bag *b, int item) {
   if (b->count < 100) {
       b->data[b->count++] = item;
   }
}
```

This function adds an item to the array if the count variable is less than 100.

4. Create a main function to use the bag ADT:

```
int main() {
   bag b;
   init(&b);

   for (int i = 1; i <= 100; i++) {
       add(&b, i);
   }

   // Print the array of 1 to 100
   for (int i = 0; i < b.count; i++) {
       printf("%d ", b.data[i]);
   }

   return 0;
}
```

This main function initializes the bag, adds integers 1 to 100 to the bag, and then prints out the array of 1 to 100 using the bag ADT.
So, using the above code, you can create an array of 1 to 100 in C using the bag ADT.

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Answer:

19.4285714286 Step-by-step explanation: 272 divided by 14 can be calculated as follows. 272/14 math problems division

Answer:

45750 cm²

Step-by-step explanation:

    a = 4 and c = 5

 base length = 3ac²

                      = 3 * 4 * 5 * 5

                     = 300 cm

    height = 5 cm more than the base length

               = 300 + 5

               = 305 cm

      \(\sf \boxed{\bf Area \ of \ triangle = \dfrac{1}{2}*base \ length * height}\)

                                    \(\sf =\dfrac{1}{2}*300*305\\\\= 150 * 305\\\\= 45750 \ cm^2\)

Answer:

48.65x6.2=301.63

Step-by-step explanation:

Answer:

down below

Step-by-step explanation:

301.63

It's a bit difficult to type this in a mobile so I won't put it. If you would like the explanation, I can always go back and edit my answer

Hope this helps! :)

Answer: congruent

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Answer:

x=-5

Step-by-step explanation:

Combine like terms: 7x-11=-46

Add 11 to -46: -35

Divide: 7x/-35

ANSWER: x=-5

Answer:

Since each yard is worth $54.00, then you first need to find the area of the carpet.

To do this, you can just multiply the length times width.

5 * 7 = 35

The carpet has an area of 35 yards in total.

Now you just need to find how much money 35 yards of carpet is worth.

To do this, you just multiply:

$54 * 35 = $1,890

It would cost $1,890 for the carpet.

Step-by-step explanation:

Hope it helps! =D

The probability P(n < 10 | n is prime) is 4/6, which simplifies to 2/3 or approximately 0.67 (rounded to the nearest hundredth).

To find the probability P(n < 10 | n is prime), we need to determine the number of prime integers less than 10 and divide it by the total number of integers from 1 to 15 that are prime.

The prime numbers less than 10 are 2, 3, 5, and 7. So, there are 4 prime numbers less than 10.

The total number of integers from 1 to 15 that are prime is 6 (2, 3, 5, 7, 11, and 13).

As a result, the chance P(n 10 | n is prime) is 4/6, which can be expressed as 2/3 or, rounded to the nearest hundredth, as around 0.67.

Thus, 0.67 is the answer.

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The Fishbone diagram identifies possible causes for the problem of burned microwave popcorn, including equipment condition, popcorn quality, timing, temperature control, popcorn bag or container, kernel distribution, popcorn quantity, microwave maintenance, popcorn storage, and power fluctuations.

Problem: My microwave cooked popcorn burned.

1. Equipment: Check the microwave's condition, age, and power settings.

2. Popcorn: Examine the popcorn brand, quality, and packaging instructions.

3. Timing: Analyze the cooking time set for the popcorn.

4. Temperature: Assess the microwave's heating consistency and temperature control.

5. Popcorn bag/material: Investigate the type of bag or container used for the popcorn.

6. Kernel distribution: Consider the distribution of kernels within the bag.

7. Popcorn quantity: Evaluate the amount of popcorn used for cooking.

8. Microwave maintenance: Check if the microwave is clean and free from residue.

9. Popcorn storage: Consider the storage conditions and age of the popcorn.

10. Power fluctuations: Investigate if there were any power surges or fluctuations during cooking.

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Answer: The term in this expression is D. -3x

A term in an expression is a single mathematical entity, such as a variable or a constant. In the expression -3x - 7(x + 4), -3x is a term on its own, it is the product of -3 and x, and it doesn't have any other mathematical operation.

-7 is a constant, but it is not a term on its own because it has an operation with another term (x + 4)

(x + 4) is a term as well, it is the sum of x and 4.

So the term in this expression is -3x

Step-by-step explanation: