kevin completed 10 problems of his homework during lunch this is 2/7 of the total assignment how many problem was Kevin assigned for homework

According to the figure:-

We know that Sin∅=P/H

Hence Sinx°=13/25

\( { \sin}^{ - 1} \frac{25}{13} = X°\)

Answer:

Supplementary angles add up to 180°

180=7x-9+4x+3

180=7x+4x-9+3

180=11x-7

180+7=11x

187=11x

11x=187

x=187/11

x=17

Therefore x = 17

The between-group degrees of freedom is (a) 2

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

Groups  = 3

Respondents = 15

The between-group degrees of freedom is calculated as

df = n - 1

Where

n = groups

So, we have

df = 3 - 1

Evaluate

df = 2

Hence, the between-group degrees of freedom is (a) 2

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The probability that the result is either 3 and 4 or 5 and a prime number is 33%

Given,

There are probably certain hints that you need to watch out for. You must ADD their individual probabilities when it instructs you to determine the probability of event 1 "or" event 2. You must MULTIPLY their separate probabilities when it instructs you to determine the likelihood of events 1 and 2.

Here,

Two dice are available.

You are need to calculate the likelihood of receiving a face of 3, 4, or 5.

Since there are a total of 6 faces on a dice, the probability of each face is 1/6.

When two dice are used, the result is either 2/12 or still 1/6.

Therefore, 1/6 + 1/6 + 1/6 = 1/2 is the overall likelihood of getting either 3, 4, or 5.

You must still multiply this by the overall likelihood of finding one of the prime numbers, which are 1, 2, 3, and 5.

Thus, 1/6 + 1/6 + 1/6 + 1/6 = 2/3

Then,

The probability is 1/2 × 2/3 = 1/3 or 33%

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Answer:

D then A

Step-by-step explanation:

(a) Example question: "How often do you look at social media while doing schoolwork?

(b) Sofie can select a simple random sample of students by using a random number generator to assign a unique identification number to each student in the online high school.

(c) The sample for Sofie's research is the 32 completed surveys she received. These surveys represent the responses of a subset of the population. The population, in this case, refers to all the students at the online high school.

(d) If Sofie uses only the completed surveys, she can conclude that approximately 50% (16 out of 32) of the students who completed the survey reported using social media while doing schoolwork.

(a) Please select one of the following options: never, rarely, occasionally, frequently, or always."

(b) She can then use the random number generator again to select a specific number of students from the entire population of students, ensuring that each student has an equal chance of being selected. For example, if there are 500 students in total and Sofie wants a sample size of 50, she can generate 50 random numbers and select the corresponding students based on their identification numbers.

(d) However, it is important to note that this conclusion is specific to the sample of completed surveys and cannot be generalized to the entire population of high school students.

To make an inference about the percent of all high school students who use social media while doing schoolwork, Sofie would need a larger and more representative sample that covers a wider range of students in the online high school.

Additionally, she should consider potential biases in the sample, such as non-response bias if the students who chose not to complete the survey have different social media usage patterns compared to those who did respond.

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A 20 year old has height below 3.7 feet and above 7.9 feet then 20 year old be considered abnormal.

The average height means that the given population determined by the interaction between the environment in which it lives and the resources it commands.

Abnormal means diffrent from what is normal or usual, in a way that worries you or that is unplesant.

We have given that average height is 5.8 feet.

And abnormal height a 20 year old must be 2.1 feet below average height or 2.1 feet above average height.

Therefore 5.8 - 2.1 = 3.7 feet

                 5.8 + 2.1 = 7.9 feet

Hence height below 3.7 feet abd above 7.9 feet is considered to be abnormal.

That means [-∞ , 3.7] and [7.9,∞] is considered to be abnormal height for 20 year old man.

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The to your question is that we can use the normal distribution to estimate the probability that the product will last between 16.536 and 8.054 years.


In this case, we want to calculate the probability for x = 16.536 and x = 8.054. The mean (μ) is 14.242 years, and the standard deviation (σ) is 3.978 years.

Using the formula, we can calculate the z-scores for both values:
For x = 16.536: z = (16.536 - 14.242) / 3.978
For x = 8.054: z = (8.054 - 14.242) / 3.978

Once we have the z-scores, we can look up the corresponding probabilities in the standard normal distribution table or use a calculator. Subtracting the probability for the lower z-score from the probability for the higher z-score will give us the probability that the product will last between 16.536 and 8.054 years.

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Answer:

90

Step-by-step explanation:

900 is 90 tens

Check

900/10 = 90

or....

90 * 10 = 900

Hope this helped!

Have a supercalifragilisticexpialidocious day!

Answer:

Q' (0, 1)

Step-by-step explanation:

(x, y) → (0.5x, 0.5y) <== substitute 0 for x and 2 for y

(0, 2) → (0.5(0), 0.5(2)) <== multiply

(0, 2) → (0, 1)

Hope this helps!

Answer:

yes

Step-by-step explanation:

Using the converse theorem of Pythagoras.

If the longest side squared is equal to the sum of the other 2 sides, then the triangle is right.

longest side = 17 and 17² = 289 and

8² + 15² = 64 + 225 = 289

Since 8² + 15² = 17² then the triangle is right.

Based on the given mean delivery time of 10:28am and the standard deviation of 0:55 mins, the estimated times within which 95% of the deliveries are made is (a) between 8:38 am and 12:18 pm.

To calculate this interval, we need to use the z-score formula, where we find the z-score corresponding to the 95th percentile, which is 1.96. Then, we multiply this z-score by the standard deviation and add/subtract it from the mean to get the upper and lower bounds of the interval.

The upper bound is calculated as 10:28 + (1.96 x 0:55) = 12:18 pm, and the lower bound is calculated as 10:28 - (1.96 x 0:55) = 8:38 am.

Therefore, we can conclude that the interval between 8:38 am and 12:18 pm represents the estimated times within which 95% of the deliveries are made based on the given mean delivery time and standard deviation.

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Step-by-step explanation:

(f + g)(-1) = f(-1) + g(-1)

f(-1) = -1 -2 = -3

g(-1) = (-1)² + (-1) -6 = -6

(f+g)(-1) = -9

Answer:

(f + g)(- 1) = - 9

Step-by-step explanation:

note (f + g)(x) = f(x) + g(x)

f(x) + g(x)

= x - 2 + x² + x - 6 ← collect like terms

= x² + 2x - 8

To evaluate (f + g)(- 1) substitute x = - 1 into (f + g)(x), that is

(f + g)(- 1)

= (- 1)² + 2(- 1) - 8 = 1 - 2 - 8 = - 9

The peak is located at R=1 according to a power curve analysis. To put it another way, the load and source resistance must match.

The ski area's name needs to be changed first. Squaw is not a kind way to refer to a woman. It is an expression that refers to female genitalia. (a decent slang equivalent in English begins with "c" and rhymes with "runt") During my time as a teacher in an Indian school, I learned this in a very embarrassing manner.

If we suppose that each person weighs roughly 70 kilograms (154 lbs) on Earth, then the power required to simply raise the people is P = W/t, and since W = mgh in this situation, P = W/t = mgh/t = (47,000 people)(70 kg/person).

(2 MW) = (1791222.222 W)(9.8 N/kg)(200 m)/(3600 s).

The complete question is:

Squaw Valley ski area in California claims that its lifts can move 47,000 people per hour.  If the average lift carries people about 200 m (vertically) higher, estimate the maximum total power needed.

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Answer:

4 - pi

Step-by-step explanation:

we see that the inner square leg is 2 inch because its radius + radius

which is 1+1 (two circles diameters are 4 inches, so one circle has 1 inch radius) square area = 4 inches.

we subtract the area of 4 circle quadrants which is a circle area.

area of the circle is pi r^2, r = 1 so A = pi inch

the shaded region is (4 - pi) inch squared.    

I'm not too sure if this helps, but here's a similar project I did a while ago

Answer:

43

Step-by-step explanation:

2 significant figures means we keep the first 2 and round the 1 place

42.598 we round to 43 since next to the 2 is a 5 so we round up

And 43 are 2 significant figures since none of them are zero

Hopes this helps please mark brainliest

Answer:

$50

Step-by-step explanation:

jbbbbbhhhjjnnnnnnnnnnjhvcc I don't have him call

Answer:

$0.14

Step-by-step explanation:

Mila would be saving $0.14 because the difference between the orange juice and bagel is 0.14. Even though she is spending more on orange juice, she is saving on the bagel. We would subtract 0.39-0.25= $0.14. Hope this helps!

The proportion of patients who died in the treatment group is 65.2% and the proportion of patients who died in the control group is 88.2%.

In the Stanford Heart Transplant Study, the proportions of patients who died in the treatment and control groups are as follows:
Of the 34 patients in the control group, 4 were alive at the end of the study.

For the treatment group, 45 out of 69 patients died.

Therefore, the proportion of patients who died in the treatment group is 45/69, which is approximately 0.652 (65.2%).
For the control group, 30 out of 34 patients died.

Therefore, the proportion of patients who died in the control group is 30/34, which is approximately 0.882 (88.2%).

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Answer:

what's the correct number supposed too equal?

Answer:

I don't see a Solution to this equation

Answer:

701.25 feet squared

Step-by-step explanation:

when you calculate the total area of the circle it comes to 1963.5ft

360 degrees divided by 130 degrees is 2.8 which means you need to divide the total area by 2.8 and the final answer comes to 701.25 feet squared

a. For small populations in the competing species model, the approximate time rates of change of species' populations are given by dt/dx ≈ ax and dt/dy ≈ cy, where a and c are constants.

b. The phase plane differential equation is dy/dx = (c/a)y

c. The resulting phase plane differential equation, dy/dx = (c/a)y, is separable

a. When both species' populations are small, we can approximate their time rates of change as dt/dx ≈ ax and dt/dy ≈ cy, where a and c are constants. This approximation assumes that the growth rates of the populations are proportional to their current sizes.

b. The phase plane differential equation can be determined by examining the relationship between the rates of change of the two species' populations. In this case, dy/dx represents the ratio of the population growth rates. Since dt/dx ≈ ax and dt/dy ≈ cy, we have dy/dx = (dt/dx) / (dt/dy) ≈ (ax) / (cy) = (c/a)y.

c. The resulting phase plane differential equation, dy/dx = (c/a)y, is a separable differential equation. We can separate the variables and integrate both sides to obtain y = Ce^(cx/a), where C is the constant of integration.

d. To show that the same result is obtained by solving the time-dependent differential equations, we can solve the equations dx/dt = ax and dy/dt = cy. By eliminating t from the resulting solutions and expressing the relationship between dx and dy, we arrive at the phase plane differential equation dy/dx = (c/a)y.

e. The solution curves in the phase plane exhibit different behaviors based on the values of a and c. When a > c, the curves are exponential and diverge from each other, indicating the competitive dominance of one species. When a = c, the curves are straight lines with a constant slope, indicating a stable coexistence. When a < c, the curves are exponential and converge towards the origin, indicating the dominance of the other species. These distinct behaviors in the phase plane reflect the outcomes of the competition between the two species with different growth rates.

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The opportunity cost of spending $90,000 on advertising but only producing 12,000 units can be calculated by comparing the benefits of the advertising investment to the potential alternative uses of that money.

First, let's calculate the total cost of producing 12,000 units. Fixed costs amount to $48,000, and variable costs are $8 per unit, resulting in a total cost of $48,000 + ($8 × 12,000) = $144,000.

Next, we need to calculate the potential sales revenue without advertising. With a price of $16 per unit, the potential sales revenue would be $16 × 12,000 = $192,000.

Now, let's calculate the potential sales revenue after advertising. The advertising multiplier is given as (30,000 + advertising) / 30,000. In this case, the multiplier would be (30,000 + 90,000) / 30,000 = 4.

Therefore, the potential sales revenue after advertising would be $192,000 × 4 = $768,000.

The opportunity cost is the difference between the potential sales revenue after advertising ($768,000) and the potential sales revenue without advertising ($192,000), which is $768,000 - $192,000 = $576,000.

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Answer:

amogus

Step-by-step explanation:

B)

The value of x , y and z in the parallel line is 50 degrees.

When parallel lines are crossed by a transversal line, angle relationships are formed such as vertically opposite angles, alternate interior angles, alternate exterior angles, adjacent angles, corresponding angles etc.

Therefore, let's use the angle relationships to find the angle, x, y and z as follows:

Therefore,

x = 360 - 310(sum of angles in a point)

x = 50 degrees

Therefore,

x = y(alternate interior angles)

Alternate interior angles are congruent.

Hence,

y = 50 degrees

Therefore,

x = z(alternate interior angles)

z = 50 degrees.

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Answer:

14

Step-by-step explanation:

okay.. so basically you have 2x+6=34 right? so basically i’m gonna tell you the easiest way to do this

so you’re gonna start off by separating the 2x from the 6=34.

now that you’ve done that, let’s focus on the 6=34. so to get your answer, start by subtracting 6 from 34 so (34 - 6 = 28)

now that you’ve got that, keep the number 28 in mind. youre gonna want to take 2 and multiply by x. but 2x = 28, so what do you multiply by 2 to make 28? 14. so x is 14. to check your work, let’s see.

2 x 14 + 6 = 34?

2 x 14 = 28 + 6 = 34.

34 = 34

so, x is 14. hope this helped!

Answer:

i think b) option b

Step-by-step explanation:

lmk if this is incorrect

The relation 2 represents a function.

In order to determine which relation in the below table represents a function, we need to first understand what a function is.A function is a relationship in which each input value corresponds to exactly one output value.

To put it another way, each x-value has one and only one y-value. The most typical method to determine whether a relation is a function is to use the vertical line test.

The vertical line test is a way to determine if a relation is a function graphically. To test if a graph is a function, we draw a vertical line through each x-value on the graph. If a vertical line crosses the graph more than once, it is not a function.

If, on the other hand, the graph passes the vertical line test and no vertical line crosses the graph more than once, it is a function.Now let's look at the table below to determine which relation is a function.

We will first plot the x and y values of each relation on a coordinate system and then apply the vertical line test to each relation.

Relation 1: x | y0 | 10 | 11 | 22 | 23 | 34 | 35 | 4Relation 1 does not represent a function since we can draw a vertical line through x = 3 and the line will cross the graph more than once.

Relation 2: x | y2 | 33 | 34 | 45 | 46 | 57 | 5Relation 2 represents a function since we can draw a vertical line through each x-value on the graph and it will only cross the graph once.

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