Factor the Trinomial 6x^2 -23x +20
(And please show the work/steps.)

Answer:

------------------------

We know that:

Substitute and evaluate the given expression:

Answer:

41

Step-by-step explanation:

A pair of consecutive numbers is written as: N and N + 1

(where the larger page number is N + 1)

And we know that the product of these numbers is 1640.

Then:

(N)*(N + 1) = 1640

Solving for N, we get:

N^2 + N = 1640

N^2 + N - 1640 = 0

This is a quadratic equation, remember that for a general quadratic equation:

a*x^2 + b*x + c = 0

The solutions are:

\(x = \frac{-b\pm \sqrt{b^2 - 4*a*c} }{2*a}\)

In our case, the solutions are:

\(N = \frac{-1 \pm \sqrt{(1)^2 - 4*1*(-1640)} }{2} = \frac{1 \pm 81}{2}\)

Then the two solutions are:

N = (-1 + 81)/2 = 40

N = (-1 - 81)/2 = -41

Because N represents the number on a page, it only can be a positive value, then we take the positive solution.

Then the two consecutive numbers, N and N + 1

are:

N = 40

N + 1 = 41

The value of the larger page number is 41.

The calculation \((9.04-8.23+21.954+81.0) \times 3.1416\) would have 4 significant figures.



To determine the number of significant figures in a calculation, we follow the rules for significant figures:

1. Addition and subtraction: The result should have the same number of decimal places as the measurement with the fewest decimal places.
2. Multiplication and division: The result should have the same number of significant figures as the measurement with the fewest significant figures.

Let's break down the calculation step by step:
\(9.04-8.23+21.954+81.0\) yields \(104.764\).

Now, multiplying this result by \(3.1416\) gives \(329.5719744\).

The measurement with the fewest significant figures in the calculation is \(3.1416\), which has 5 significant figures.

According to the rule for multiplication and division, the result should have the same number of significant figures as the measurement with the fewest significant figures. Hence, the result, \(329.5719744\), will be rounded to 4 significant figures.

Therefore, the calculation \((9.04-8.23+21.954+81.0) \times 3.1416\) would have 4 significant figures.

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The complete question is

"Find the general solution of the given differential equation

y''-y=0, y1(t)=e^t , y2(t)=cosht

The function \(y(t)=e^t\)  is the solution of the given differential equation.

The function y(t)=cosht is the solution of given differential equation.

The function is a type of relation, or rule, that maps one input to specific single output.

Given;

\(y_1(t) = e^t\)

Given differential equations are,

y''-y = 0

 So that,  

\(y' (t) = e^t, y'' (t) = e^t\)

Substitute values in the given differential equation.

\(e^t -e^t=0\)

Therefore, the function \(y(t)=e^t\)  is the solution of the given differential equation.

Another function;

\(y(t)=cosht\)  

So that,  

\(y"(t)=sinht\\\\y"(t)=cosht\)

Hence, function y(t)=cosht is solution of given differential equation.

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Answer:

1/14

Step-by-step explanation:

Answer:

Step-by-step explanation:

1-73

18 inches = 1.5 feet

Multiply 2 on both sides;

36 inches = 3 feet

As for 72 inches, multiply each side by 4

18 inches = 1.5 feet

72 inches = 6 feet

As for 144 inches, divide both sides by 18

1 inch is approximately 0.083

Multiply both sides by 144

144 inches = 12 feet

1-74

a. The scale goes by 20. 0->20->40, etc.

b. The scale goes by 15. 0->15->30, etc.

c. The scale goes by 25. 0->25->50, etc.

d. The scale goes by 50. 0->50->100, etc.

Answer:

3/4= 0.75

9/10= 0.9

8/25= 0.32

5/8= 0.625

Step-by-step explanation:

Answer:

3/4 = 0.75, 9/10 = 0.90, 8/25 = 0.32, 5/8 = 0.625

Step-by-step explanation:

hope this helps!

To find the estimated project completion time for the given project activities, we need to first calculate the earliest start and earliest finish times and then the latest start and latest finish times.

Using the activity times given, we can calculate the earliest start and earliest finish times for each activity as follows: Activity A: Earliest start time = 0

Earliest finish time = 1

Activity B: Earliest start time = 2

Earliest finish time = 5

Activity C: Earliest start time = 5

Earliest finish time = 11

Activity D: Earliest start time = 11

Earliest finish time = 17

Activity E: Earliest start time = 5

Earliest finish time = 8 Activity F:

Earliest start time = 8

Earliest finish time = 17

Now we can calculate the latest start and latest finish times for each activity using the backward pass.

Latest finish time = 5

Latest start time = 2

Activity A: Latest finish time = 1

Latest start time = 0

Now we can calculate the slack time for each activity as follows:Activity A:

Slack time = 0

Activity B: Slack time = 0

Activity C: Slack time = 0

Activity D: Slack time = 0

Activity E: Slack time = 3

Activity F: Slack time = 0

The critical path for this project is A -> C -> D, since these activities have zero slack time. Therefore, the estimated project completion time is 17 units of time.

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Answer:

It's the positive i, no matter what i is equal to.

Answer:

Option B: 3

Step-by-step explanation:

#1: Substitute in 6 for \(y\) and 3 for \(x\): \(13=(3)(6)-5\)

#2: Multiply 3 and 6: \(13=18-5\)

#3: Evaluate the equation: \(13=18-5\) → \(13=13\)

#4: Check if the solution is equal: \(13=13\) ✓

\(x\) is equal to 3 (Option B).

Given the subtotal of $55.97, apply taxes as shown below (remember that 6.75%=6.75/100=0.0675)

Now, apply the discount (20%=20/100=0.20)

The answer is approximately $47.8 (taxes first, then discount)

f(x)=5x^2-11x+18

\(\\ \sf\longmapsto f(2.4)\)

\(\\ \sf\longmapsto 5(2.4)^2-11(2.4)+18\)

\(\\ \sf\longmapsto 5(5.76)-26.4+18\)

\(\\ \sf\longmapsto 28.8-26.4+18\)

\(\\ \sf\longmapsto 2.4+18\)

\(\\ \sf\longmapsto 20.4\)

And

\(\\ \sf\longmapsto f(-3)\)

\(\\ \sf\longmapsto 5(-3)^2-11(-3)+18\)

\(\\ \sf\longmapsto 5(9)+33+18\)

\(\\ \sf\longmapsto 45+51\)

\(\\ \sf\longmapsto 96\)

The value of 5x² - 11x + 18 is when x = 2.4 and when x = -3 will be 20.4 and 96.

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The quadratic expression is given below.

⇒ 5x² - 11x + 18

The value of the expression at x = 2.4, then the value of the expression will be

⇒ 5(2.4)² - 11(2.4) + 18

⇒ 28.8 - 26.4 + 18

⇒ 20.4

The value of the expression at x = -3, then the value of the expression will be

⇒ 5(-3)² - 11(-3) + 18

⇒ 45 + 33 + 18

⇒ 96

The value of 5x² - 11x + 18 is when x = 2.4 and when x = -3 will be 20.4 and 96.

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Answer:

\(37.7\ \text{foot}\)

Step-by-step explanation:

The length of the edging will be equal to the circumference of the circular flower garden.

Here, the diameter of the circular garden is \(d=12\ \text{foot}\)

Circumference of a circle is given by

\(C=\pi d\\\Rightarrow C=3.14\times 12\\\Rightarrow C=37.68\approx 37.7\ \text{foot}\)

The length of the edging is \(37.7\ \text{foot}\).

Step-by-step explanation:

you do 58.45 / 617.50 × 100 = 9.46%

hope this helps you

The function in option number C is a linear function.

Here, we are given 4 functions. Let us check them one by one to see if they are linear or not-

A. In this function, if x = 0, y =11

if x = 1, y = 7

Thus, if x increases by 1, y increases by 4.

but now if we see when x = 2, y = 5 which is not an increase of 4.

Thus, the given function is not linear.

B. In this function, if x = 0, y = 0

if x = 1, y = 0

Thus, if x increases by 1, y increases by 0.

but now if we see when x = 2, y = -1 which is not an increase of 0.

Thus, the given function is not linear.

C. In this function, if x = 0, y = 6

if x = 1, y = 12

Thus, if x increases by 1, y increases by 6.

when x = 2, y = 18 which is an increase of 6.

similarly, when x = 3, y = 24 which is an increase of 6.

Thus, the given function is linear.

Hence function in option number C is a linear function.

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Answer:

(c) 1

Step-by-step explanation:

\( \sin \: A = \cos(2A - 45 \degree) \\ \\ \cos(90 \degree - A )= \cos(2A - 45 \degree) \\ \\ 90 \degree - A = 2A - 45 \degree \\ \\ 90 \degree - 45 \degree = 2A -A \\ \\ 45 \degree = A \\ \\ A = 45 \degree \\ \\ \tan \: A = \tan \: 45 \degree \\ \\ \huge \red{ \boxed{\tan \: A =1}}\)

(a) The presence of a confounding variable Z, such as the severity of the fire, could make the relationship between the number of firefighters (X) and property damage (Y) spurious.

(b) The presence of a confounding variable Z, such as the popularity of the incumbent member or the characteristics of the constituency, could make the relationship between campaign spending (X) and percentage of vote (Y) spurious.

(c) The presence of a confounding variable Z, such as the overall lifestyle or socioeconomic status of the women, could make the relationship between coffee consumption (X) and the risk of depression (Y) spurious.

(d) The presence of a confounding variable Z, such as the overall economic conditions or demand for rum in Havana, could make the relationship between Presbyterian ministers' salaries (X) and the price of rum (Y) spurious.

In each of the given examples, the reported pattern of covariation between X and Y may be influenced by a confounding variable Z. A confounding variable is a variable that is related to both the independent variable (X) and the dependent variable (Y), which can lead to a spurious relationship between X and Y.

The presence of a confounding variable can create the illusion of a direct relationship between X and Y when, in reality, the observed relationship is due to the influence of Z.

For example, in the case of firefighters and property damage, the severity of the fire (Z) could be the underlying factor driving both the number of firefighters and the extent of property damage.

Similarly, in the case of campaign spending and percentage of vote, factors such as the popularity of the incumbent member or the characteristics of the constituency (Z) could be influencing both variables.

In the case of coffee consumption and the risk of depression, other lifestyle or socioeconomic factors (Z) may be responsible for the observed relationship rather than coffee itself. And in the case of Presbyterian ministers' salaries and the price of rum, economic conditions or demand for rum (Z) in Havana could be driving both variables.

Identifying and controlling for confounding variables is crucial in research to ensure accurate interpretations of the relationship between X and Y. It allows researchers to isolate the true causal relationship between the variables of interest.

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Another possible vertex of the square is determined as (2, 1).

option B is the correct answer.

The vertex of a figure is the point of intersection of two sides of the shape.

The perimeter of the square is given as 12 units, the length of each side of the square is calculated as follows;

P = 12 units

a side length = 12 units / 4 = 3 units

To determine another possible vertex of the square, the length between the points must be equal to 3.

Let's consider point A;

A = (1, 2)

given vertex = (-1, 1)

distance between the points = √ (-1 -1)² + (1 - 2)² = √5

Let's consider point B;

B = (2, 1)

given vertex = (-1, 1)

distance between the points = √ (-1 -2)² + (1 - 1)² = √9 = 3

Thus, point B is another possible vertex of the square.

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The image of (0, -3) with a dilation by a scale factor of 1/3 is (0, -1).

The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.

The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.

We have,

(0, -3)

Dilation by a scale factor of 1/3.

This means,

(0, -3) = (1/3 x 0, 1/3 x (-3) )

(0, -3) = (0, -1)

Thus,

The image is (0, -1).

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Answer:

Step-by-step explanation:

Mean "X"=250

s = 25

n=10

Because Standard deviation is unknown and sample size is small, we must employ the T-distribution

df=n-1 = 10-1

df=9

For 90% confidence, t = 1.833

E=t*s/\(\sqrt{n\\\) = 1.833*(25/\(\sqrt{10}\))

E=14.49

The 90% confidence interval is X±E=250±14.49 or 235.51, 264.49

The projected balance of cash at the end of August is $38,000. The correct option is D.

To calculate the projected balance of cash at the end of August, we need to consider the cash balance at the beginning of the month, cash collections, and cash payments for August.

Given that the cash balance on July 31 was $32,000.00, we start with this amount.

Cash collections for August are $52,000.00, which means this amount is added to the cash balance.

Next, we consider cash payments for August, which include purchases of direct materials and operating expenses. The total cash payments for August are $20,000 (purchases of direct materials) + $26,000 (operating expenses) = $46,000.00. This amount is subtracted from the cash balance.

Finally, we calculate the projected balance of cash at the end of August by adding the cash collections and subtracting the cash payments from the beginning cash balance:

Projected cash balance at the end of August = Beginning cash balance + Cash collections - Cash payments

= $32,000 + $52,000 - $46,000

= $38,000

Therefore, correct option is D.

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Complete question is:

Berman Company is preparing its budget for the third quarter. Cash balance on July 31 was $32,000.00. Assume there is no minimum balance of cash required and no borrowing is undertaken. Additional budgeted data are provided here:

                                         July           Aug             Sep

Cash collections       $51,000.00 $52,000.00 $50,000.00

Cash payments

Purchases of direct materials     23,000     20,000        24,000

Operating expenses       32,000      26,000    22,000

Capital expenditures      7,000       9,000      13,000

Calculate the projected balance of cash at the end of August.

A. $23000

B. $29000

C. $107000

OD. $38000

All the values of y are calculated, the function table is complete. In this case, the final table looks like this

| x   | -2x | -2x-3 | y  |

| -2  | 4   | 1     | -3 |

| -1  | 2   | -1    | -5 |

| 0   | 0   | -3    | -3 |

| 1   | -2  | -5    | -7 |

| 2   | -4  | -7    | -9 |

The function y=-2x-3 is a linear equation. This means that the graph of the equation is a line with a constant slope. The slope of this line is -2 and the y-intercept is -3. The table above shows the output of the function for different values of x. To calculate the value of y for a given x, the first step is to calculate -2x. Then subtract 3 from the result to get the value of y. For example, for x=-2, -2*(-2)=-4 and -4-3=-3, so y=-3. For x=1, -2*(1)=-2 and -2-3=-5, so y=-5. In this way, the output of the function can be calculated for any given value of x.

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(a) No, sample is large and the standard deviation of the population is known so we do not need to know anything about the shape of the distribution. Therefore, the correct option is C.

(b) The standard error of the mean is $7.

(c) The point estimate of the population mean is $265.

(d) The 80% confidence interval for the population mean is $254.62 to $275.38.

(e) The 95% confidence interval for the population mean is $249.94 to $280.06.

a) The correct answer to whether it is necessary to know anything about the shape of the distribution of the account balances in order to make an interval estimate of the mean of all the account balances is: No, the sample is large and the standard deviation of the population is known, so we do not need to know anything about the shape of the distribution. With a large sample size, the Central Limit Theorem allows us to assume that the sampling distribution of the mean will be approximately normal. Hence, the correct answer is option C.

(b) The formula for standard error of the mean is:

SE = σ/√n

where σ is the population standard deviation, n is the sample size, and √ is the square root. Substituting the given values, we get:

SE = 77/√121

SE = 7

(c) The point estimate of the population mean is simply the sample mean, which is given as $265.

(d) To construct an 80% confidence interval, we need to use the formula:

CI = x ± zα/2 * (σ/√n)

where x is the sample mean, zα/2 is the z-score corresponding to the desired level of confidence (in this case, 80% or 0.80), σ is the population standard deviation, and n is the sample size. From the z-table, we find that the z-score for an 80% confidence interval is 1.28. Substituting the given values, we get:

CI = $265 ± 1.28 * (77/√121)

CI = $265 ± $10.38

CI = $254.62 to $275.38

(e) To construct a 95% confidence interval, we follow the same formula but use a z-score of 1.96 (from the z-table) for the desired level of confidence. Substituting the given values, we get:

CI = $265 ± 1.96 * (77/√121)

CI = $265 ± $15.06

CI = $249.94 to $280.06

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If Sharifa's white ball rolled 143 centimeters in 4 seconds and her green ball rolled 112 centimeters in 3 seconds. The ball that rolled at a greater is: B: green ball.

Using this formula to find the fastest and the slowest speed

Speed for white ball :

Speed for white ball = 143 centimeters /4 seconds

Speed for white ball = 34.75

Speed for green ball:

Speed for green ball = 112 centimeters /3 seconds

Speed for green ball= 37.33

37.33 is greater than 34.75 which means that green ball is the fastest.

Therefore the correct option is B.

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Answer:

No (unless it happens to have a vinculum on top of any digit image attached is an example of a vinculum)

Step-by-step explanation:

0.63 just stops at 0.63

Answer:

Set 1

10 cm, 26 cm, 24 cm

Step-by-step explanation:

10² + 24² = 26²

100 + 576 = 676