Determine the friction force on the 40 kg crate, and the resultant normal force and its position x, measured from point A, if the force P = 300 N. Take μs=0.5 and μk=0.2

Answer:

Step-by-step explanation:

To find the value of f(g(-2)), we first need to substitute g(-2) for x in the equation for f(x).

g(-2) = (-2) + 7 = 5

So, f(g(-2)) = f(5)

Now we can substitute 5 for x in the equation for f(x) to find the final value:

f(x) = 3x² - 7x + 15

f(5) = 3(5)² - 7(5) + 15

f(5) = 75 - 35 + 15

f(5) = 55

So, f(g(-2)) = 55

Answer:5

Step-by-step explanation:55

The other number can be represented as 123-x.

The number of DVDs will be 19 for the first plan.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the video rental company offers a plan that includes a membership fee of $10 and charges $2 for every DVD borrowed. They also offer a second plan, that costs $42 per month for unlimited DVD rentals.

The number of the DVDs will be calculated as:-

C₁ = 2D + 10

The cost for the second plan is,

48 = 2D + 10

2D = 38

D = 38 / 2

D = 19

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Answer:

Approximately 281 workers prefer working the night shift

Step-by-step explanation:

68/653 = 0.104134

2700 * 0.104134

281.16

Answer: Height = 20 inches, Width = 36 inches

Step-by-step explanation:

Let the height be [tex]h[/tex] and the width be [tex]h+16[/tex].

Using the formula for the perimeter of a triangle,

[tex]2(h+h+16)=112\\\\2(2h+16)=112\\\\2h+16=56\\\\2h=40\\\\h=20 \implies h+16=36[/tex]

Answer:

4. 0.50g+2=15

Step-by-step explanation:

Answer:

x = 4; y = -8

Step-by-step explanation:

0.5x + 0.5y = -2

    x - 0.25y = 6

Rewrite the first equation. Multiply both sides of the second equation by 2 and write below the first equation. then add the equations.

    0.5x + 0.5y = -2

 +     2x - 0.5y = 12

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

      2.5x          = 10

x = 4

x - 0.25y = 6

4 - 0.25y = 6

-0.25y = 2

y = -2/0.25

y = -8

x = 4; y = -8

slope = (y2 - y1)/(x2 - x1) = (13 - 5)/(-2-0) = 8/-2 = -4

Answer:

-4

Step-by-step explanation:

The value of the expression (c² - d²) / (d² + cd - 2c²) in the simplified form will be negative (c + d) / (d + 2c).

When the relevant components and basic processes of a numerical method are given values, the expression's result is the result of the computation it depicts.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The expression is given below.

⇒ (c² - d²) / (d² + cd - 2c²)

Factorize the numerator and denominator, then we have

⇒ (c² - d²) / (d² + cd - 2c²)

⇒ (c² + cd - cd - d²) / (d² + 2cd - cd - 2c²)

⇒ [c(c + d) - d(c + d)] / [d(d + 2c) - c(d + 2c)]

⇒ [(c + d)(c - d)] / [(d - c)(d + 2c)]

⇒ - [(c + d)(d - c)] / [(d - c)(d + 2c)]

⇒ - (c + d) / (d + 2c)

The value of the expression (c² - d²) / (d² + cd - 2c²) in the simplified form will be negative (c + d) / (d + 2c).

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Answer:

a= 17

Step-by-step explanation:

Since all sides are equal length, all angles must be equal. Since all of the angles of every triangle sum to 180*, 180/3= 60*. Therefore, (4a-8)*=60*

From there, we can solve for a by adding 8 to both sides:

(4a-8)+8=60+8

4a=68

Then we can divide both sides by 4 to get

(4a)/4= 68/4

a=17

Answer:

a = 17

Step-by-step explanation:

This seems to be an equilateral triangle, so the angle is 60 degrees. 68 - 8 is 60. 4a represents 4 × a, and we know 4 × a has to be 68. 68 / 4 is 17, meaning a = 17.

The surface of the smaller cubic package is 150 squared inches.

Remember that for a cube of side length S, the surface area is given by:

A = 6*S^2

In this case,w we know that the surface area of the larger cube is 384 in^2, replacing that we will get:

384 in^2 = 6*S^2

S = √(384 in^2/6) = 8in

And the edge of the smaller package is 3 inches shorter, then its sidelength is:

s = 8in - 3in = 5in

Then its surface area is:

A = 6*(5in)^2 = 150 in^2

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the change in net working capital during the year will be $6,935.

The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.

Given, Rousey Incorporated, had a cash flow to creditors of $16,830 and a cash flow to shareholders of $7,370 over the past year.

Cash flow from assets:

= Cash flow to creditors + Cash flow to shareholders

= $16,965 + $7,559

= $24,524

Since

Net capital spending = Net fixed assets at the end - Net fixed assets at the beginning + Depreciation expense

Cash flow from financial assets = Operating cash flow - Net capital spending - Change in working capital

$24,524 = $51,136 - ($57,130 - $49,705 + $12,252) - Change in working capital

$24,524 = $51,136 - $19,677 - Change in working capital

$24,524 = $31,459 - Change in working capital

Change in working capital = $31,459 - $24,524

                                           = $6,935

Therefore, the change in net working capital during the year will be $6,935.

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Answer:

j

Step-by-step explanation:

l

Answer:

0/-2 or zero slope

Step-by-step explanation:

(4,8), (2,8)

x1 y1 x2 y2

y2- y1

_____

x2 - x1

↓

8-8

___= 0/ -2

2-4

the slope is 0/-2, making it equal 0 slope

At x = 2, there is an inflection point and a change in trend (from increasing to decreasing).

The function can change from being "concave up" to "concave down" or vice versa at points known as inflection points. Where the second derivative changes signs can be used to locate them. A point of inflection is defined as the location where the second derivative of a function, f′′, equals zero. To make the geometric significance of this clearer, we must wait a moment. If the curve "bends" upward, a portion of the graph of f has a concave upward slope. For instance, the entire popular parabola y=x2 is concave upward.

Here,

At x = 2, there is an inflection point, a relative minimum, and a direction change (from increasing to decreasing).

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Bob would take 5 hours to mow the law by himself.

Let us consider, the area of the lawn to be mowed to be x inch².

It is given that the law can be mowed by Abe alone in 3 hours.

We know that,

Rate of work = Work/Time

⇒ rate of work of Abe = area to be mowed(work)/time taken

                                     = (x/3) inch²/hour

Now,

Abe has been working alone for 1/3 hour

⇒work done by Abe alone = rate of work of Abe x time

                                             = (x/3) inch²/hour x 1/3 hour

                                             = x/9 inch²

Remaining work = x - x/9 = 8x/9 inch²

Let, the rate of work of Bob be y inch²/hour.

It is given that the time taken by Abe and Bob to complete the remaining work together is  1 and 2/3 hours, i.e, 5/3 hours.

Therefore,

The rate of work of Abe and Bob when working together

= work ÷ time

=(8x/9) ÷ (5/3)

=8x/15 inch²/hour

⇒ Rate of work of Abe + Rate of work of Bob = 8x/15

⇒ x/3 + y = 8x/15

⇒ y = (8x/15) - (x/3)

⇒ y = 3x/15 = x/5 inch²/hour

Thus, the time taken by Bob to mow the law by himself

= work ÷ rate of work

= x inch² ÷ (x/5) inch²/hour

= 5 hours

So, it would take 5 hours for Bob to mow the lawn alone.

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Given Dinesh earns Rs 3,250 for 5 days working everyday, we can divide the total by 5 to find that he earns Rs 650 daily. Because there are 14 days in two weeks, we can set up an equation:

650 • 14 = Rs 9,100

This means if Dinesh worked every day for two weeks, he would earn Rs 9,100; however, we are told he earns 7,800 in the two weeks. Upon subtraction of 9,100 and 7,800, we will find that Dinesh earned Rs 1,300 less than he would have for a full two weeks.

We know Dinesh earns Rs 650 daily, so we can divide 1,300 by 650 to find that he was absent for 2 days out of the two weeks.

The factors of the polynomial x³ - 5x² - 12x + 36 are (x-5) and -12(x+3).

What is the Factorisation of Polynomial?

The factors are the polynomials that are multiplied to produce the original polynomial.

The polynomial x³ - 5x² - 12x + 36 can be factored by grouping. We can factor a common factor of x out of the first two terms and the last two terms.

x³ - 5x² - 12x + 36= x(x² - 5x) -12x(1) +36(1)

= x(x-5)(x+1) -12(x+3)

So, the factors of the polynomial x³ - 5x² - 12x + 36 are (x-5)(x+1) and -12(x+3).

We can also factorize this polynomial by using polynomial division.

we can divide x² - 5x by x, remainder will be -5x and we can divide -12x+36 by x+3, remainder will be 0

x³ - 5x² - 12x + 36 = (x(x-5) -12(x+3))

Hence, the factors of the polynomial x³ - 5x² - 12x + 36 are (x-5) and -12(x+3).

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The z-score for a weight of 10.7 kg is 1.50, which means that the weight is 1.50 standard deviations above the mean of 10.4 kg.

Height and weight are two measurements used to track a childs development an organization measures child development by comparing the weights of children who are the same height and the same gender in a certain year weights for all 80 cm girls in the reference population had a mean

μ = 10.4 kg

and standard deviation

σ = 0.2 kg.

Weights are normally distributed.

X ~ N(10.4, 0.2). Calculate the z-scores that correspond to the following weights and interpret them. (Round your numerical answers to two decimal places.)

Weight = 10.7 kg

Z-score = 1.50

This means that the weight of 10.7 kg is 1.50 standard deviations above the mean of 10.4 kg.

First, calculate the difference between the weight (10.7 kg) and the mean (10.4 kg):

x - μ = 10.7 - 10.4 = 0.3

Then, divide the difference by the standard deviation:

(x - μ)/σ = 0.3/0.2 = 1.50

The z-score is 1.50, which means that the weight of 10.7 kg is 1.50 standard deviations above the mean of 10.4 kg.

The z-score for a weight of 10.7 kg is 1.50, which means that the weight is 1.50 standard deviations above the mean of 10.4 kg.

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Answer: Second one (B)

Step-by-step explanation:

We can count every point as 1. As we look at choice A, the point (-4, 3) doesn't exist on the graph, so we can move to the next choice. Choice B contains all points listed on the graph. We know this because coordinates/points are read as (x,y), where x moves either right (positive) or left (negative), and y moves up (positive) or down (negative) depending on what the given point is.

Answer:

The second one:

(-3,4) (3,4) (1,-4) (-2,-4)

Explanation :

The easiest way to find the right answer is to determine the points given on the graph (x, y)

From the first quarter (x, y) : (3,4)

The sec quarter (-x, y) : (-3,4)

The third quarter (-x, -y) :(-2,-4)

And the fourth quarter (x, - y): (1,-4)

Now, all you have to do is find the right answer from the choices

The sample space can be written as {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}. Each outcome has a probability of 1/8, since there are 8 equally likely outcomes in total.

What is probability?

Probability is a measure of the likelihood of an event occurring. It is a value between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. The probability of an event A, denoted as P(A), is given by the ratio of the number of favorable outcomes to the total number of possible outcomes.

In this experiment, the sample space is the set of all possible outcomes of flipping 3 coins. Each coin can land either heads (H) or tails (T), so there are 2^3 = 8 possible outcomes of flipping all three coins.

The sample space can be written as {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}. Each outcome has a probability of 1/8, since there are 8 equally likely outcomes in total.

Hence, The sample space can be written as {HHH, HHT, HTH, HTT, THH, THT, TTH, TTT}. Each outcome has a probability of 1/8, since there are 8 equally likely outcomes in total.

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The percentage of commissions is obtained as follows:

2%.

The percentage of commission is obtained applying the proportions in the context of this problem.

A proportion is applied as the sales commission percentage is given by the sales commission divided by the total number of sales, and then multiplied by 100%.

The parameters for this problem are given as follows:

Hence the percentage can be then obtained as follows:

1200/60000 x 100% = 2%.

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A linear function in the form of (y = mx + b) to represent the situation is y = 1.5x + 4.

The equation y = 4 + 1.5x is a mathematical representation of the relationship between the two factors that determine the cost of the taxi ride. It is a linear equation, where y is the total cost of the taxi ride, x is the number of miles driven, and the numbers 4 and 1.5 are the coefficients.

In this equation, y is the dependent variable, and x is the independent variable.

The cost of the taxi ride is determined by two factors: the flat fee for the pickup and the additional cost per mile driven.

Let y be the total cost of the taxi ride, measured in dollars.

Let x be the number of miles driven, measured in miles.

The flat fee for the pickup is $4, and the additional cost per mile driven is $1.50.

So, the total cost of the taxi ride, y, is equal to the flat fee plus the additional cost per mile driven multiplied by the number of miles driven.

y = 4 + 1.5x

This can also be written in the form of (y= mx+b) where y is the total cost of the taxi ride, x is the number of miles driven, m is the cost per mile and b is the flat fee or initial cost.

So, the function in the form of (y= mx+b) is y = 1.5x + 4

This is a linear function because the variable x is raised to the power of 1, and the relationship between x and y is a straight line.

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The compound interest the answer is  b)$23377.

What is compound interest?

The interest that is calculated using both the principal and the interest that has accrued during the previous period is called compound interest. It differs from simple interest in that the principal is not taken into account when determining the interest for the subsequent period with simple interest.

We know that for compound interest, A = [tex]P(1+\frac{r}{n})^n[/tex]

Where,

A = Future amount = $68,000

P = ??

r = 3.575% annual = 0.03575

n = 4 as interest is compounded quarterly

t = time in year = 30 years

Putting the values,

=> 68000 = P [tex](1+\frac{0.03575}{4})^{4*30}[/tex]

=> 68000 = P[tex](1+\frac{0.03575}{4})^{120}[/tex]

=> 68000 = P (1.0089375)[tex]^{120}[/tex]

=> P = $23377.5

Hence the correct option is b)$23377.

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Each sampling distribution becomes more leptokurtic as sample sizes increase due to a reduction in its variety. The sampling distribution's range is smaller than the initial population's range.

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Bob’s average speed was 72 miles/hr and the Mean Value Theorem can be used to prove that he was traveling faster than 55 miles per hour at some point between the two toll readers.

We have the following parameters

Rate = 50 miles per hour

Time = 12:00 to 12:10 where he passed the second reader after 12 miles

This means that he drove 12 miles in 10 minutes or 1/6 hour

The speed within this interval is calculated as

Speed = 12/(1/6)

Evaluate

Speed = 72 miles

So, at a point t, Bob was driving at an instantaneous speed of 72 miles per hour, which is faster than 55 miles per hour.

Therefore, Bob was traveling faster than 55 miles per hour at some point between the two toll readers.

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The statistical tests that van be used to analyze the relationship include multiple regression analysis and ANOVA.

There are several statistical tests that could be used to analyze the relationship between a student's level of education, gender, annual income, student loan debt, and the annual income of their parents.

One possibility is to use a multiple regression analysis, which would allow you to simultaneously examine the impact of all of these variables on annual income and student loan debt.

Another option could be to use a two-way ANOVA (Analysis of Variance) which would allow you to examine the interaction effects of the student's level of education and gender on annual income and student loan debt. And also, you can use chi-square test for categorical variables like gender. It ultimately depends on the specific research question and the type of data you have.

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Let (v₁, v₂ . . . vₙ) be a list of vectors in V. This list is linearly independent if and only if the list (v₁ - v₂, v₂ - v₃ . . . . , vₙ₋₁ - vₙ, vₙ) is linearly independent.

Observe that,

0 = a₁(v₁ - v₂) + . . . .+ aₙ₋₁(vₙ₋₁ - vₙ) + aₙ vₙ

= a₁ v₁ + (a₂ - a₁)v₂ + . . . . + (aₙ - aₙ₋₁)vₙ

So,

(v₁ - v₂, v₂ - v₃. . . .  vₙ₋₁ - vₙ, vₙ)

These are linearly independent if and only if a₁ = a₂ = . . . .= aₙ = 0, if and only if a₁ = a₂ - a₁ = . . . . . aₙ - aₙ₋₁ = 0, if and only if

(v₁, v₂, . . . ., vₙ)

are linearly independent.

--The given question is incomplete, the complete question is

"Prove that V is infinite dimensional if and only if there is a sequence of vectors v₁, v₂ . . . vₙ in v such that the list (v₁ - v₂, v₂ - v₃ . . . . , vₙ₋₁ - vₙ, vₙ) is linearly independent."--

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Answer:

1) 143 square inches

2) 32 square inches

3)152 square yards

4) 150 square inches

Step-by-step explanation:

        base=  11 in  ;height = 13 in

           [tex]\sf \boxed{\text{Area of parallelogram = base * height}}[/tex]

                                               = 11 * 13

                                               = 143 square inches

          base =  8 cm ; height = 8 cm

      [tex]\sf \boxed{\text {Area of triangle = } \dfrac{1}{2}*base * height}[/tex]

                                 [tex]\sf =\dfrac{1}{2}*8 * 8\\\\= 4 * 8\\\\= 32 \ in^2[/tex]

       diagonal = p = 7 + 12 = 19 yd

        diagonal 2 = q = 8 + 8 = 16 yd

[tex]\sf \boxed{\text{Area of kite =} \dfrac{pq}{2}}[/tex]

                    [tex]\sf =\dfrac{19*16}{2}\\\\= 19*8\\\\= 152 \ yd^2[/tex]

        a = 13 in ; b = 12 ; h = 12 in

a,b are the parallel sides of the trapezium.

[tex]\sf \boxed{\text{Area of trapezium = }\dfrac{(a + b)*h}{2}}[/tex]

                                [tex]\sf = \dfrac{(13+12)*12}{2}\\\\\\=\dfrac{25*12}{2}\\\\=25*6\\\\= 150 \ in^2[/tex]

In an apple orchard, the density of planting determines how many of apples a single tree will produce.  An illustration of this is Y=X².

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