Don’t understand please help

Answer:

m(∠AOF) = 148°

Step-by-step explanation:

From the figure attached,

CD intersects line EF at a point O.

Line CD is perpendicular to the line EF.

m(∠AOE) = 32°

m(∠COE) = 90°

Since m(∠COE) = m(∠AOE) + m(∠AOC) = 90°

32° + m(∠AOC) = 90°

m(∠AOC) = 90° - 32° = 58°

m(∠AOF) = m(∠AOC) + m(∠COF)

               = 58° + 90°

               = 148°

Therefore, m(∠AOF) = 148° will be the answer.

The results of the expressions involving logarithms are listed below:

Case 1: 1 / 2

Case 2:

Subcase a: 0

Subcase b: 11 / 2

Subcase c: - 11 / 2

In this problem we have a case of an expression involving logarithms that must be simplified and three cases of expressions involving logarithms that must be evaluated. Each case can be solved by means of the following logarithm properties:

㏒ₐ (b · c) = ㏒ₐ b + ㏒ₐ c

㏒ₐ (b / c) = ㏒ₐ b - ㏒ₐ c

㏒ₐ cᵇ = b · ㏒ₐ c

Now we proceed to determine the result of each case:

Case 1

㏒ ∛8 / ㏒ 4

(1 / 3) · ㏒ 8 / ㏒ 2²

(1 / 3) · ㏒ 2³ / (2 · ㏒ 2)

㏒ 2 / (2 · ㏒ 2)

1 / 2

Case 2:

Subcase a

㏒ [b / (100 · a · c)]

㏒ b - ㏒ (100 · a · c)

㏒ b - ㏒ 100 - ㏒ a - ㏒ c

3 - 2 - 2 + 1

0

Subcase b

㏒√[(a³ · b) / c²]

(1 / 2) · ㏒ [(a³ · b) / c²]

(1 / 2) · ㏒ (a³ · b) - (1 / 2) · ㏒ c²

(1 / 2) · ㏒ a³ + (1 / 2) · ㏒ b - ㏒ c

(3 / 2) · ㏒ a + (1 / 2) · ㏒ b - ㏒ c

(3 / 2) · 2 + (1 / 2) · 3 + 1

3 + 3 / 2 + 1

11 / 2

Subcase c

㏒ [(2 · a · √b) / (5 · c)]⁻¹

- ㏒ [(2 · a · √b) / (5 · c)]

- ㏒ (2 · a · √b) + ㏒ (5 · c)

- ㏒ 2 - ㏒ a - ㏒ √b + ㏒ 5 + ㏒ c

- ㏒ (2 · 5) - ㏒ a - (1 / 2) · ㏒ b + ㏒ c

- ㏒ 10 - ㏒ a - (1 / 2) · ㏒ b + ㏒ c

- 1 - 2 - (1 / 2) · 3 - 1

- 4 - 3 / 2

- 11 / 2

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Answer:

qualitative and ordinal.

Step-by-step explanation:

They are both two types of qualitative data under Categorical data.

Nominal and ordinal are the levels of measurement for which data can be qualitative. Therefore, the correct option is option A, D.

A categorization that describes the type of information contained inside the importance attributed to variables is called level of measurement and scale of measure. The most well-known classification was created by psychiatrist Stanley Smith Stevens and included four levels or measurement scales: nominal, ordinal, interval, or ratio.

This system of defining several measurement levels originated within psychology and has drawn heavy criticism from academics in other fields. Additional classifications include those made by Chrisman, Mosteller, and Tukey. Nominal and ordinal are the levels of measurement for which data can be qualitative.

Therefore, the correct option is option A, D.

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Answer:

12

Step-by-step explanation:

Answer:A is the right

Answer:

50

Step-by-step explanation:

Answer:

The approximate between the swing and slide is 56.21 feet.

Step-by-step explanation:

Answer:

"subset"

Step-by-step explanation:

The "set within a set" is called a "subset."

The slope of the h(x) is 4x as the value of x increases the slope of h(x) will approach to the infinity.

The slope is the ratio of rising or falling and running. The difference between the ordinate is called rise or fall and the difference between the abscissa is called run.

The functions are given below.

\(\rm f(x) = 4x+ 50\\\\ g(x) = 3x - 4 \\\\h(x) = 2x^2+ 9x- 4\)

The slope of the f(x) and g(x) will be 4 and 3 respectively.

And the slope of the h(x) is 4x as the value of x increases the slope of h(x) will approach to the infinity.

The graph is shown below.

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Answer: i don't really know how you want me to solve it

Use the formula x =−b/2a (b over 2a)

(1 second

to find the maximum and minimum.

6t^(2 )+ 12t + 30

which should give you this answer

6(t2+2t+5)

what i did was factor 6 out of 6t^(2 )+ 12t + 30

Answer: 1 second

Step-by-step explanation:

There are two ways to solve this:

1. Graph it. You will see an inverted parabola with time (in seconds) on the x axis and height (in feet) on the y axis. The top of the parabola is point (1, 36) which means at 1 second the ball will be at 36 feet. Since the balcony is at 30 feet, the ball only goes up 6 feet before it changes direction toward the ground.

2. Take the first derivative and set it equal to zero. The first derivative will give us the slope, or rate of change, of the parabola for any point t (on the x-axis). The rate of change when the ball reaches its maximum height will be zero, when it goes from a positive value (going up) to a negative value (going down).

-6t^2 + 12t + 30

First derivative = h'(t) = -12t + 12

Set h'(t) to zero: 0 = -12t + 12

t = 1 second

Either way works. Put 1 second into the original equation and it will return 36 feet. That's 36 feet aboove ground. 6 feet above the balcony from which it is thrown. You can throw better then that, I assume.

Answer:

this is the real answer

\( \frac{664}{5} \)

Answer: C) She slept until noon.

Answer:

$38.16

Step-by-step explanation:

12*3=36

36*0.06=2.16

36+2.16=38.16

Hope this helps! :)

With the help of The Remainder Theorem, we can say that the quotient = x + 2.

Though it might not appear so, at least at first glance, the Remainder Theorem is helpful for evaluating polynomials at a given value of x.

This is due to the fact that the tool is presented as a theorem with a proof, and at this point in your studies, you probably don't feel prepared for proofs.

Fortunately, you only need to comprehend how to apply the theorem; you are not required to comprehend how it was proved.

Starting with an unnamed polynomial p(x), the Remainder Theorem begins by stating that "p(x)" simply refers to "some polynomial p whose variable is x.".

Then, according to the Theorem, you should divide that polynomial by a linear factor, such as x a, where an is only a number.

According to our question-

Divide by long division::

Divide using long division: Click for video explanations: standard: x + 2.

quotient: x + 2.

remainder: 0

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y=-1/5x+4 is the equation in slope-intercept form for the line with y-intercept 4 and slope -1/5

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

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

The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is

m=y₂-y₁/x₂-x₁

Given,

y-intercept 4 and slope -1/5

Now y=-1/5x+4

Hence y=-1/5x+4 is the equation in slope-intercept form for the line with y-intercept 4 and slope -1/5

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Answer:

i belive its 12850

Step-by-step explanation:

The answer for given expressions is (f -g)(x) = -x² + 4x + 6.

What is the quadratic equation?

The solutions to the quadratic equation are the values of the unknown variable x, which satisfy the equation. These solutions are called roots or zeros of quadratic equations. The roots of any polynomial are the solutions for the given equation.

To find (f-g)(x), we need to subtract g(x) from f(x) and simplify the expression.

f(x) = 4x + 1

g(x) = x² - 5

(f - g)(x) = f(x) - g(x)

= (4x + 1) - (x² - 5)

= -x² + 4x + 6

Therefore, the answer for given expressions is (f -g)(x) = -x² + 4x + 6.

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If the experiment uses a sample of university students, it would likely not have a  a. external validity.

External validity refers to the extent to which the findings from a study can be generalized to a larger population or real-world settings.

If an experiment uses a sample of graduate college students to study how consumers choose life insurance policies,

It is likely that the findings may not accurately represent the broader population of consumers.

Graduate college students may have different characteristics, preferences,

And decision-making processes compared to the general population when it comes to life insurance policies.

Laboratory validity (b), internal validity (c), and extraneous validity (d) are not relevant to the issue of representativeness of the sample.

Laboratory validity refers to the extent to which the experimental conditions accurately represent real-world situations.

Internal validity refers to the extent to which the experiment allows for causal inferences within the study itself.

Extraneous validity is not a recognized term in experimental design.

Therefore, the correct answer for an experiment uses a sample of university students is a. external validity.

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The above question is incomplete, the complete question is:

an experiment is designed to test how consumers go about choosing life insurance policies. if this experiment uses a sample of graduate college students, it would likely not have an experiment is designed to test how consumers go about choosing life insurance policies. if this experiment uses a sample of graduate college students, it would likely not have a. external validity b. laboratory validity c. internal validity d. extraneous validity e. it would have all of these

Using  both and levels of significance and the critical value, we can conclude that the percentage of spam emails sent by the huge firm is different from the percentage in a recent month.

The population proportion of spam emails in a recent month is p = 0.718.

A random sample of emails from a large corporation has a sample proportion of spam emails, p'= 0.645.

We want to test the hypothesis that the population proportion of spam emails in the large corporation is different from p = 0.718.

We will use both 0.05 and 0.01 levels of significance and the critical value method.

To test this hypothesis using the critical value method, we can follow these steps:

The null hypothesis is that the population proportion of spam emails in the large corporation is equal to 0.718:

H0: p = 0.718

The alternative hypothesis is that the population proportion of spam emails in the large corporation is different from 0.718:

Ha: p ≠ 0.718

We will use both 0.05 and 0.01 levels of significance. Since we have a large sample (np > 10 and n(1-p) > 10), we can use the z-test for proportions. The test statistic is calculated as:

z = ( p' - p) / sqrt(p(1-p)/n)

where n is the sample size.

Using a standard normal distribution table, the critical values for a two-tailed test at the 0.05 and 0.01 levels of significance are:

At the 0.05 level: ±1.96

At the 0.01 level: ±2.58

Step 4: Calculate the test statistic and p-value.

Using the formula for the test statistic and the given values, we get:

z = (0.645 - 0.718) / sqrt(0.718(1-0.718)/n)

Since we don't know the population standard deviation, we use the standard error estimated from the sample:

z = (0.645 - 0.718) / sqrt(0.718(1-0.718)/n) = -2.546 / sqrt(0.718(1-0.718)/n)

Using n = 1000 (a reasonable sample size for an email server), we get:

z = -2.546 / sqrt(0.718(1-0.718)/1000) = -9.386

The corresponding p-value for this test statistic is very small (less than 0.0001), indicating strong evidence against the null hypothesis.

At the 0.05 level of significance, the critical value is ±1.96, which does not include the calculated test statistic of -9.386. Therefore, we reject the null hypothesis and conclude that the population proportion of spam emails in the large corporation is different from 0.718.

At the 0.01 level of significance, the critical value is ±2.58, which also does not include the calculated test statistic of -9.386. Therefore, we reject the null hypothesis at this level of significance as well.

In conclusion, we have strong evidence to suggest that the proportion of spam emails in the large corporation is different from the proportion in a recent month (0.718).

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Answer:

2.0 x \(10^{1}\)

Step-by-step explanation:

1. length = 3.2 x \(10^{5}\) m

width = 1.6 x \(10^{4}\) m

Area of a rectangle = length x width

                                = (3.2 x \(10^{5}\)) x (1.6 x \(10^{4}\))

                                = 5.12 x \(10^{9}\) \(m^{2}\)

2. length = 1.28 x \(10^{7}\) m

   width = 8 x \(10^{3}\) m

Area of a rectangle = length x width

                                 = (1.28 x \(10^{7}\)) x (8 x \(10^{3}\))

                                 = 1.024 x \(10^{11}\) \(m^{2}\)

\(\frac{Area of rectangle 2}{Area of rectangle 1}\) = \(\frac{1.024*10^{11} }{5.12*10^{9} }\)

                       = 20

                       = 2.0 x \(10^{1}\)

Thus,

The area of rectangle 2 is 2.0 x \(10^{1}\) times greater than the area of rectangle 1.

Answer:

Its true though.

Step-by-step explanation:

The coefficient is before the variable and since in 2p the 2 is before the variable it is a coefficient.

Answer:

Yes It is True.

Step-by-step explanation:

Any number before variable is a coefficient

The measure of a central angle is equal to the measure of the intersected arc.

Then, arc CD is equal to 55º

Arc EDC is equal to the sum of ars CD and DE:

The five-number summary of each distribution is shown below.

The difference of the median value of the two data sets is 1.

The difference and multiple of variation for the range are 4 and 1.444.

Based on the information provided about the first data set (Girls), the five-number summary for the given data set include the following:

Minimum (Min) = 25.

First quartile (Q₁) = 26.

Median (Med) = 30.

Third quartile (Q₃) = 31.

Maximum (Max) = 34.

For the Boys, the five-number summary include the following:

Minimum (Min) = 23.

First quartile (Q₁) = 24.

Median (Med) = 29.

Third quartile (Q₃) = 32.

Maximum (Max) = 36.

Difference in median = 30 - 29

Difference in median = 1.

Range of girls = 34 - 25 = 9

Range of boys = 36 - 23 = 13

Difference in range = 13 - 9

Difference in range = 4.

Multiple of variation for range = 13/9 = 1.444.

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Answer:

The answer is given below

Step-by-step explanation:

The distance from the lake to the car is 3 miles and it takes 2 hours. The velocity of the hiker is 3/2 mi/hr. Therefore f(t) which is the distance from the car t hours after 7 A.M is given by:

\(f(t)=\frac{3}{2}t\)

When coming back on Sunday morning, the distance g(t) from the car at any point in time is given by:

\(g(t)=3-\frac{3}{2}t\)

a)

\(f(t)=\frac{3}{2}t\\f(0)=\frac{3}{2}(0)=0\ mile\\f(2)=\frac{3}{2}(2)=3\ miles\)

\(g(t)=3-\frac{3}{2}t\\g(0)=3-\frac{3}{2}(0)=3\ miles\\g(2)=3-\frac{3}{2}(2)=2-2=0\ mile\\\)

b)

\(h(t)=f(t)-g(t)=\frac{3}{2}t -(3-\frac{3}{2}t)=\frac{3}{2}t -3+\frac{3}{2}t=3t-3\\h(t)=3t-3\\h(0)=3(0)-3=0-3=-3\\h(2)=3(2)-3=6-3=3\)

c)

According to Intermediate Value Theorem, there exist a point b where f(b) = g(b). i.e. f(b) - g(b) = 0

\(h(b)=f(b)-g(b)=0\\h(0)=-3,h(2)=3\)

This means there exist a point b within the interval [-3, 3] where f(b) - g(b) = 0

Answer:

-4.29

Step-by-step explanation:

The computation of the z score is shown below:

data provided in the question

Average minutes = 16 minutes

Standard deviation = 1.4 minutes

Amount of advertising time = 8 minutes

Based on the above information, the z score is

\(= \frac{x-m}{\sigma} \\\\ = \frac{8-14}{\1.4} \\\\ = \frac{-6}{1.4}\)

= -4.29

Hence, the z score is -4.29. It is come by considering the above formula

Step-by-step explanation:

fgx= x+6

g(f(x)=√x²+6

am not sure about the rest

Answer:

Option D, 4

Step-by-step explanation:

2 pizzas x 6 slices per pizza = 12 slices of pizza

12 slices of pizza divided by 3 friends eating equal slices = 4 slices per friend

Option D, 4, is your answer

The values are;

g(4) = -5

g(0) = -1

g(-1/2) = -1/2

A function can be defined as an equation or expression showing the relationship between two variables.

These variables are;

We have the function;

g(x) = -x-1

for x = 4

Substitute the value

g(4) = -4 - 1

g(4) = -5

For x = 0

substitute the value

g(0) = -1

For x = -1/2

g(-1/2) = --1/2 - 1

g(-1/2) = -1/2

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Answer: 81/8

Step-by-step explanation:

Answer:

X = 8

Step-by-step explanation:

6 x 8 = 48 - 8 = 40 so 8 is your answer

Option D (9) is not a probability and is not a possible answer choice for a probability question.

To find the probability of the intersection of events A and B (denoted as P(A ∩ B)), we need to know how many elements are in both A and B. Since there are 2 repeated elements between the events, this means that there are a total of 7 - 2 = 5 distinct elements between them.

Therefore, P(A ∩ B) = 5/7.

Note that none of the answer choices provided match this result exactly. Option A is the closest with a probability of 4/7, but this is the probability of A alone, not the intersection of A and B. Option B (2/7) is the probability of B alone and option C (5/7) is the probability of either A or B occurring, not the intersection.

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