cab someone plz solve this

Answer:

-5

Step-by-step explanation:

m= -1

7(-1)+4-(-1)(7)(-1)+4-(-1)

-7+-3+5

=-5

Luke received a total of 48 emails over the course of two weeks, with a daily average of approximately 3.43 emails.

Luke diligently kept track of the number of emails he received each day over a span of two weeks.

His recorded data for each day, in chronological order, is as follows: 3, 6, 5, 2, 4, 9, 5, 2, 2, 5, 2, 3, 4, and 3. Let's analyze this information and uncover some insights.

During the first week, Luke received a total of 27 emails.

The daily count varied throughout the week, starting with 3 emails on the first day and peaking at 9 emails on the sixth day.

The range of email counts during this period was from 2 to 9, indicating some fluctuation in his inbox activity.

In the second week, the total number of emails decreased slightly to 21. The daily count ranged from 2 to 5, with no extreme values as seen in the previous weeks.

This suggests a more stable email flow during this period.

Combining the totals from both weeks, Luke received a sum of 48 emails over the entire two-week duration.

On average, this translates to approximately 3.43 emails per day.

The median value, which represents the middle point of the data set, is 3, indicating that the majority of days had around 3 emails.

It's worth noting that without further context, it's challenging to determine the significance or purpose of Luke's email activity.

Factors such as his personal or professional obligations, communication patterns, and individual preferences could influence these numbers.

Nevertheless, by meticulously tracking his email counts, Luke has gained valuable insights into his communication patterns, which can inform his future email management strategies and help him stay on top of his inbox efficiently.

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Sell $500,000 worth of real estate in order to earn a commission of $35,000 at a rate of 7%. So the correct answer is D) $500,000.

Use the given information to set up a proportion and solve for the unknown sales amount:

Commission earned / Sales amount = Commission rate

$21,000 / $300,000 = 0.07

Now we can use this proportion to find the sales amount needed to earn $35,000:

$35,000 / 0.07 = $500,000

Therefore, they would need to sell $500,000 worth of real estate in order to earn a commission of $35,000 at a rate of 7%. So the correct answer is D) $500,000.

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Answer:

c = 25y

Step-by-step explanation:

c = cost

For a factorable trinomial x² + bx + c, the absolute value of b can be less than, equal to, or greater than the absolute value of c, depending on the specific values of b and c.

The quadratic trinomial formula in one variable has the general form ax2 + bx + c, where a, b, and c are constant terms and none of them are zero.

For any factorable trinomial of the form x² + bx + c, the absolute value of b can sometimes be less than, equal to, or greater than the absolute value of c. The relationship between the absolute values of b and c depends on the specific values of b and c.

Let's consider a few cases:

1. If both b and c are positive or both negative: In this case, the absolute value of b can be less than, equal to, or greater than the absolute value of c. For example:

  - In the trinomial x² + 2x + 3, the absolute value of b (|2|) is less than the absolute value of c (|3|).

  - In the trinomial x² + 4x + 3, the absolute value of b (|4|) is greater than the absolute value of c (|3|).

  - In the trinomial x² + 3x + 3, the absolute value of b (|3|) is equal to the absolute value of c (|3|).

2. If b and c have opposite signs: In this case, the absolute value of b can also be less than, equal to, or greater than the absolute value of c. For example:

  - In the trinomial x² - 4x + 3, the absolute value of b (|4|) is greater than the absolute value of c (|3|).

  - In the trinomial x² - 2x + 3, the absolute value of b (|2|) is less than the absolute value of c (|3|).

  - In the trinomial x² - 3x + 3, the absolute value of b (|3|) is equal to the absolute value of c (|3|).

Therefore, for a factorable trinomial x² + bx + c, the absolute value of b can be less than, equal to, or greater than the absolute value of c, depending on the specific values of b and c.

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Answer:

4

Step-by-step explanation:

to find f(0) we look a when x is 0

when x is 0 y axis is 4

so f(0)=4

hopes this helps

Answer:

1

Step-by-step explanation:

:)

Answer:

1

Step-by-step explanation:

3(2x+1)=9      *multiply 3 to 2x and 1*

6x + 3 = 9     *subtract 3 from both sides*

6x = 6           *divide each side by 6

x=1

The surface area of the first prism is approximately 72.54 square meters. The surface area of the second prism is approximately 299.2 square cm. The surface area of the third prism cannot be calculated due to missing information. The amount of cardboard used to make the box is 856 square inches. Approximately 7.5 cans of paint are needed to paint the lateral surfaces of the prism.

To find the surface area of each prism, we need to calculate the sum of the areas of all its faces. Let's go through each prism one by one:

Now, let's move on to the box:

The dimensions of the box are given as 10 in. wide, 12 in. high, and 14 in. deep. To find the surface area, we need to calculate the sum of the areas of all its faces. Using the formula for a rectangular prism, we get: 2(10)(12) + 2(10)(14) + 2(12)(14) = 240 + 280 + 336 = 856 square inches. Therefore, 856 square inches of cardboard is used to make the box.

Finally, let's calculate the amount of paint needed for the prism:

The prism has regular pentagonal bases. The height of the prism is given as 15 ft, and the length of each side of the pentagon is 3 ft. To find the lateral surface area, we need to calculate the perimeter of the base and multiply it by the height. The perimeter of a regular pentagon is 5 times the length of one side. Plugging in the value, we get: 5(3) = 15 ft. The lateral surface area is then 15 ft multiplied by the height, which is 15 ft. Multiplying, we get: 15(15) = 225 square ft. Since one can of paint can cover 30 square ft, we divide the lateral surface area by the coverage of one can: 225/30 = 7.5 cans. Therefore, approximately 7.5 cans of paint are needed to paint the lateral surfaces of the prism.

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Answer: Definition of Supplementary/ Supplement Theorem Two angles are supplementary if and only if their sum is 180 degrees.

Step-by-step explanation:

The first four terms of the Taylor series for the function (2x) about the point (a=1) are (2x + 2x - 2).

To find the first four terms of the Taylor series for the function (2x) about the point (a = 1), we can use the general formula for the Taylor series expansion:

\(\[f(x) = f(a) + f'(a)(x-a) + \frac{f''(a)}{2!}(x-a)^2 + \frac{f'''(a)}{3!}(x-a)^3 + \ldots\]\)

Let's calculate the first four terms:

Starting with the first term, we substitute

\(\(f(a) = f(1) = 2(1) = 2x\)\)

For the second term, we differentiate (2x) with respect to (x) to get (2), and multiply it by (x-1) to obtain (2(x-1)=2x-2).

\(\(f'(a) = \frac{d}{dx}(2x) = 2\)\)

\(\(f'(a)(x-a) = 2(x-1) = 2x - 2\)\)

Third term: \(\(f''(a) = \frac{d^2}{dx^2}(2x) = 0\)\)

Since the second derivative is zero, the third term is zero.

Fourth term:\(\(f'''(a) = \frac{d^3}{dx^3}(2x) = 0\)\)

Similarly, the fourth term is also zero.

Therefore, the first four terms of the Taylor series for the function (2x) about the point (a = 1) are:

(2x + 2x - 2)

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Answer:

7.2

Step-by-step explanation:

To determine whether there is enough evidence to reject the null hypothesis, we need to compare the computed test statistic to the critical value.

In this case, the computed test statistic is 2.50 and the critical value is 2.33. If the computed test statistic falls in the rejection region beyond the critical value, we can reject the null hypothesis. Conversely, if the computed test statistic falls within the non-rejection region, we fail to reject the null hypothesis.In this scenario, since the computed test statistic (2.50) is greater than the critical value (2.33), it falls in the rejection region. This means that the observed data is unlikely to occur if the null hypothesis were true.

Therefore, based on the given information, there is enough evidence for the emergency room nurse to reject the null hypothesis. This suggests that there is sufficient evidence to support the claim that the average number of cases of upper respiratory infections per day at the hospital is over 21 cases.

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There is enough evidence to reject the null hypothesis in this case because the computed test statistic (2.50) is higher than the critical value (2.33). This suggests the average number of daily respiratory infections exceeds 21, providing substantial evidence against the null hypothesis.

Yes, there is enough evidence for the emergency room nurse to reject the null hypothesis. The null hypothesis is typically a claim of no difference or no effect. In this case, the null hypothesis would be an average of 21 upper respiratory infections per day. The test statistic computed (2.50) exceeds the critical value (2.33). This suggests that the average daily cases indeed exceed 21, hence providing enough evidence to reject the null hypothesis.

It's crucial to understand that when the test statistic is larger than the critical value, we reject the null hypothesis because the observed sample is inconsistent with the null hypothesis. The statistical test indicated a significant difference, upheld by the test statistic value of 2.50. The significance level (alpha) of 0.05 is a commonly used threshold for significance in scientific studies. In this context, the finding suggests that the increase in respiratory infection cases is statistically significant, and the null hypothesis can be rejected.

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Answer:

brown = 12

yellow = 30

orange = 36

Step-by-step explanation:

let 'b' = # brown

let '18+b' = # yellow

let '3b' = #orange

add them together and set equal to 78

b + 18 + b + 3b = 78

5b + 18 = 78

5b = 60

b = 12

y = 12 + 18 = 30

o = 3(12) = 36

12 + 30 + 36 = 78

Answer:

12.53 miles

Step-by-step explanation:

6² + 11² = x²

36 + 121 = x²

157 = x²

x = 12.53 miles

The distance from town A to town C would be; 12.53 miles.

A numerical expression is an algebraic information stated in the form of numbers and variables that are unknown. Information can is used to generate numerical expressions.

We are given that Town B is 6 miles due north of town A, and town C is due east of town A. It is 11 miles from town B to town C.

Therefore,

6² + 11² = x²

36 + 121 = x²

157 = x²

x = 12.53 miles

Hence, the distance from town A to town C would be; 12.53 miles.

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The amount of cash paid for salaries is equal to the reported salaries expense for the current year, which is $247,000.

Salaries payable represents the amount of salaries owed by the company to its employees at a specific point in time. The change in the balances of salaries payable throughout the year reflects the cash payments made for salaries. In this case, the beginning balance in salaries payable was $38,000, and the ending balance was $13,000. The decrease in the salaries payable balance indicates that the company made cash payments to employees to settle their salaries. The difference between the beginning and ending balances, $38,000 - $13,000 = $25,000, represents the amount of cash paid for salaries during the year.

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Answer:

5.74

Step-by-step explanation:

Jordan scored a total of 4.4 points on all five tests combined. Therefore, Jordan needs a score of 1 point on the sixth test to achieve an average of 90% over all six tests.

a. To find the total score Jordan received on all five tests, we can multiply his mean score (88%) by the total number of tests (5). The calculation is as follows:

Total score = Mean score x Number of tests

Total score = 88% x 5

To calculate the total score, we convert 88% to its decimal form by dividing it by 100:

Total score = 0.88 x 5 = 4.4

Therefore, Jordan scored a total of 4.4 points on all five tests combined.

b. To calculate the score Jordan needs on the sixth test to achieve an average of 90%, we need to consider the total number of tests and the desired average.

Let's assume the sixth test is worth 100 points (as the previous tests were). Jordan's goal is to have an average of 90% over the six tests.

To find the score he needs on the sixth test, we can set up the following equation:

(4.4 + x) / 6 = 90%

Here, x represents the score on the sixth test. We multiply the average by the total number of tests to find the sum of all scores. Solving the equation:

4.4 + x = 6 * 0.90

4.4 + x = 5.4

x = 5.4 - 4.4

x = 1

Therefore, Jordan needs a score of 1 point on the sixth test to achieve an average of 90% over all six tests.

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Answer:

shown below

Step-by-step explanation:

1) tanY = 0.2334

Y = arctan(0.2334)

Y = 13.14 degrees

2) X = 12 / tan(40)

X = 14.3km

3) x = arctan(5/8)

x = 32°

9514 1404 393

Answer:

  (a) (6x -3) +(2x -6) +x = 180

  (b) m∠L = 123°

     m∠M = 36°

     m∠N = 21°

Step-by-step explanation:

a) The sum of angle measures (in degrees) is 180°. The equation reflects this fact:

  (6x -3) +(2x -6) +x = 180

__

b) The equation simplifies to ...

  9x -9 = 180

  x -1 = 20 . . . . . divide by 9

  x = 21 . . . . . . . .add 1

Then the degree measures are ...

  m∠L = (6x -3)° = (6·21 -3)° = 123°

  m∠M = (2x -6)° = (2·21 -6)° = 36°

  m∠N = x° = 21°

Answer:

24496

Step-by-step explanation:

40912 * (1-5%) ^10 = 24495.5

becuase they are humans, so round up to 24496

Answer: im pretty sure this is correct

- 1/42 x (21x233y)

Step-by-step explanation:

first convert the expressions (2 3/10x x5/7 x y-2 4/5 x x )

then factor the expression (23/10 x- 5/7 y- 29/6 y- 14/5x )

then collect like terms (1/210 x 483 x - 150 y - 1015 - 588x)

factor the expression (1/210 x 105x 1165y)

Multiply reduce (1/210 x -5 (21x + 233y ))

= -1/42 x (21x233y)

a. At point (2, 2, 1) the vector \(\bar{C} = - 2\bar{a}y+4\bar{a}z\)

b. At (2, 2, 1) the value of D = 23

Given that,

For \(\bar{A}=x \bar{a} x+y \bar{a} y+z \bar{a} z \)\) and \(\( \bar{B}=2 x \bar{a} x+3 y \bar{a} y+3 z \bar{a} z \)\).

Here, A and B are vectors

We know that,

a. At (2, 2, 1) we have to find \(\bar{C}=\bar{A} \times \bar{B}\).

C is a vector by using matrix,

\(\bar{C}=\left[\begin{array}{ccc}\bar{a}x&\bar{a}y&\bar{a}z\\x&y&z\\2x&3y&3z\end{array}\right]\)

Now, determine the matrix,

\(\bar{C} = \bar{a}x(3yz - 3yz) - \bar{a}y(3xz - 2xz)+\bar{a}z(3xy - 3xy)\)

\(\bar{C} = - \bar{a}y(xz)+\bar{a}z(xy)\)

At point (2,2,1) taking x = 2 , y = 2 and z = 1

\(\bar{C} = - \bar{a}y(2\times 1)+\bar{a}z(2\times 2)\)

\(\bar{C} = - 2\bar{a}y+4\bar{a}z\)

b. At (2, 2, 1) we have to find \(D=\bar{A} .\bar{B}\)

\(D=\bar{A} .\bar{B}\)

\(D = (x \bar{a} x+y \bar{a} y+z \bar{a} z )(2 x \bar{a} x+3 y \bar{a} y+3 z \bar{a} z)\)

D = 2x² + 3y² + 3z²

At point (2,2,1) taking x = 2 , y = 2 and z = 1

D = 2(2)² + 3(2)² + 3(1)²

D = 23.

Therefore, At (2, 2, 1) D = 23

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The question is incomplete the complete question is -

For \(\bar{A}=x \bar{a} x+y \bar{a} y+z \bar{a} z \)\) and \(\( \bar{B}=2 x \bar{a} x+3 y \bar{a} y+3 z \bar{a} z \)\).

Find the following at (2,2,1)

a. \(\bar{C}=\bar{A} \times \bar{B}\)

b. \(D=\bar{A} .\bar{B}\)

Answer:

18.1

Step-by-step explanation:

All radii of a circle are congruent (same length), which means if we draw in a radius from the center to the end of the 16.3, it would be the same length of x.

Now we can use sa very simple theorem.... the pythagorean therom!

\(7.9^{2} + 16.3^{2} = x^{2} \\62.41 + 265.69 = x^{2} \\328.1 = x^{2} \\18.1 = x\)(rounded)

I hope this helps you.

Answer: it goes up like 10,20,30,40

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

1 2/3 = 5/3 = 20/12

3 1/4 = 13/4 =39/12

We can select the range i12:i14 and simultaneously insert the frequency function in all of the cells to determine the frequency that employees reach their milestone goals based on the criteria in the range h12:h14 This can be answered by the concept of Percentage.

To determine the frequency that employees reach their milestone goals based on the criteria in the range h12:h14 and calculate the results as percentages, we need to select the range i12:i14 and insert the frequency function in all of the cells.

To follow the steps mentioned in the question, we need to perform the following:

Select the range i12:i14 by clicking on cell i12, dragging down to cell i14 while holding down the left mouse button.

Click on the formula bar at the top of the screen and type the following formula: "=FREQUENCY(Data!D2:D100,H12:H14)/COUNT(Data!D2:D100)*100". Here, "Data!D2:D100" is the range of data where the milestone goals are recorded, and "H12:H14" is the range of criteria we want to use to determine whether an employee has reached their milestone goal.

Press "Ctrl+Shift+Enter" to enter the formula as an array formula. This will insert the frequency function in all of the cells in the selected range.

The results will be displayed as percentages, which can be formatted using the percentage format option in the "Home" tab.

Therefore, by following these steps, we can select the range i12:i14 and simultaneously insert the frequency function in all of the cells to determine the frequency that employees reach their milestone goals based on the criteria in the range h12:h14 and calculate the results as percentages.

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Answer:

DE = 34

AC = 68

Step-by-step explanation:

since DE are midpoints, you can create this equation: 2(8x + 2) = 20x - 12

solve:

16x + 4 = 20x - 12

16x + 16 = 20x

16 = 4x

4 = x

plug this into both equations to find each side:

DE: 8(4) + 2 = 34

AC: 20(4) - 12 = 68

we know our answer is right because AC is twice as long as DE

Answer:

The answer to number A is 285

The answer to B is 5

The answer to C is 3

The answer to D is 72