a 2.0 kg box is at rest on a table, The static friction coefficient μs between the box and table is 0.40, and the kinetic friction coefficient μk is 0.2

Then, a 25N horizontal force is applied to the box.

What is the best estimate of the magnitude of the box's acceleration?

The amount that Jane would earn for working for 60 hours is $630.

The given function is a linear function. A linear function is a function that changes at a constant rate. When a linear graph is drawn on a coordinate graph, it can slope either upward or downward.

The linear function that represents the total amount she earns is:

Total earnings = cost per hour x total number of hours worked

Total earnings = $10.50 x h  

Total earnings = $10.50 x 60 = $630

To learn more about linear functions, please check: https://brainly.com/question/26434260

#SPJ1

Answer:

Length: 17 ft. Width: 12 ft.

Step-by-step explanation:

x + 5 + x +5 + x + x = 58

4x + 10 = 58

4x = 48

x = 12

12 + 5 = 17

Polynomial function of least degree having real coefficient with given leading coefficient 1 and having zeros 3, 4 +i is equal to x³ -11x² +41x -51.

As given,

Standard form of the polynomial function:

f(x) = r(x-a)(x-b)(x -c)

r : leading coefficient

a, b, c are zeros

Polynomial function of least degree having real coefficient with given leading coefficient 1 and having zeros 3, 4 +i is given by

f(x) = 1(x -3) (x -(4+i))(x - (4-i))

⇒ f(x) = (x -3) (x-4 -i)(x -4 +i)

⇒ f(x) = (x-3) [(x-4)² -i²]

⇒f(x) = (x-3)(x² -8x +16+1)

⇒f(x) =(x-3)(x² -8x+17)

⇒f(x) = x³-11x² +41x-51

Therefore, polynomial function of least degree having real coefficient with given leading coefficient 1 and having zeros 3, 4 +i is equal to

x³ -11x² +41x -51.

Learn more about polynomial function here

brainly.com/question/12976257

#SPJ1

The height of the barometer on Sunday = 34.8 inches

How is the barometer height on Sunday calculated?

Consider the barometer height for one week,

The average height of a barometer during one week = 30.84 inches

The total height of a barometer during one week = 30.84 * 7

                                                                                  = 215.88

Consider the barometer height for 6 weekdays,

The average height of a barometer for 6 weekdays of the same week= 30.18 inches

The total height of a barometer for 6 weekdays = 30.18 *6

                                                                                =181.08

The barometer height  on Sunday = One week height- 6 days height

                                                         =215.88 - 181.08

                                                         =34.8  inches

What is a height?

To learn more about height, refer:

https://brainly.com/question/73194

#SPJ4

The most appropriate choice for reflection will be given by-

After reflection over y-axis, coordinate of K will become K' (6, -1)

After reflection over y-axis, coordinate of L will become  L' (0, -1)

After reflection over y-axis, coordinate of M will become M' (0, -2)

After reflection over y-axis, coordinate of J will become  J' (6, -2)

What is reflection?

Reflection of a figure about a line is a transformation in which a mirror image of the figure can be obtained over the line.

The line is called the line of reflection.

Here,

After reflection over the y - axis, sign of x coordinate will be same.

Coordinate of K = (-6, -1)

After reflection over y-axis, coordinate of K will become K' (6, -1)

Coordinate of L = (0, -1)

After reflection over y-axis, coordinate of L will become L' (0, -1)

Coordinate of M = (0, -2)

After reflection over y-axis, coordinate of M will become M' (0, -2)

Coordinate of J = (-6, -2)

After reflection over y-axis, coordinate of J will become J' (6, -2)

To learn more about reflection, refer to the link-

brainly.com/question/26642069

#SPJ13

⇒I will be using the laws of exponents. As indicated below :

⇒[tex]x^{n} *x^{m} \\=x^{n+m}[/tex]

This just simply means that if you are multiplying powers of the same base you keep one base as a result and add the exponents.

⇒ The other law of exponents is indicated below:

⇒[tex]x^{n} /x^{m} \\=x^{n-m}[/tex]

This means that if you are dividing powers of the same base you keep one base and subtract the exponents.

N.B : BODMAS RULES ALSO APPLY

[tex]\frac{(3^{8} *3^{4} )}{(3^{2}*3^{8} ) } \\=\frac{3^{8+4} }{3^{2+8} } \\=\frac{3^{12} }{3^{10} } \\=3^{12-10} \\=3^{2} \\=9[/tex]

Attached is your solution. Goodluck!!

The slope for lot size is not different from 0.

We will let the slope of the size be β

So the hypothesis can be:  β = 0  (Null Hypothesis)  ,  β≠ 0 (Alternate Hypothesis)

If we consider a confidence level (the probability for which we can be confident that the null hypothesis is true) to be 95% (Probability = 0.95) then the level for which we are not confident that the null hypothesis is true will be (100 - 95)% = 5% (Probability = 0.05)

Thus, for this coefficient the P value is 0.5782.

As the p-value is more than the Probability for which we are not confident (0.05), so in this regard we can state then there is no such significance difference seen in this regard. Thus, we accept the null hypothesis here. This means that we can take the coefficient to be 0.

To learn about Null and alternate hypothesis visit:

https://brainly.com/question/25263462

#SPJ4

Answer:

u = 24

Step-by-step explanation:

-7/8u = -21

Solve for u

Multiply each side by -8/7

-8/7 *-7/8u = -21 *-8/7

u =3*8

u = 24

Answer:

u = 1/24

Write the equation:

–7/8u = –21

Get rid of fraction:

–7/2^3 • u = –21

–7 = ( – (8u) ) 21

Solve:

–7 = –8u + 21

–7 + 8u = –8u + 8u + 21

–7 + 8u = 21

–7 + 7 + 8u = 21 + 7

8u = 21 + 7

8u = 28

u = 1/24

Hope that helps! Have an amazing rest of your day! Please consider giving me the brainliest! :)

The inequality to determine the number of packages Renna could remove from the elevator to meet the mass requirement is 620 - 37.4g = 450.

An inequality is simply used to show the relationship between the expressions that are not equal.

The mass limit is given as 450 grams. Renna has a package that has a weight of 620g.

Each package has 37.4g.

Let the number of packages to remove be p.

The expression will be:

= 620 - (37.4 × p) = 450

620 - 37.4g = 450.

This illustrates the concept of inequality.

Learn more about inequalities on:

brainly.com/question/24372553

#SPJ1

Answer: x=75°

Step-by-step explanation:

x+44+61=180 ==> three angles in a triangle add up to 180 degrees

x+105=180

x+105-105=180-105

x=75°

Answer:

see explanation

Step-by-step explanation:

consider the left side

(x + 2)² + (x - 2)² ← expand factors using FOIL

= x² + 4x + 4 + x² - 4x + 4 ← collect like terms

= 2x² + 8 ← factor out 2 from each term

= 2(x² + 4)

= right side , thus proven

Answer: Uncle Luke is at 50 years old

Step-by-step explanation: I went through trial and error first with simple t-charts.  In the first one, I simply implemented the piece of info that Luke was 5 times older than the nephew. But then, I realized that Luke would always be 5 years older than his nephew. Here was the info for that t-chart:

[tex]\left \{ {{N=1} \atop {L=5}} \right. \left \{ {{N=2} \atop {L=6}} \right. \left \{ {{N=3} \atop {L=7}} \right.[/tex]

Next, I tried a chart starting with the nephew at 2 years of age, and got an age gap of 8. This helped me realize that I would have to start at 4 years of age in order to have an age gap of 16
[tex]\left \{ {{N=2} \atop {L=10}} \right.[/tex]        |             [tex]\left \{ {{N=4} \atop {L=20}} \right. \left \{ {{N=5} \atop {L=21}} \right.[/tex]  (remember there are 1 increments)

Next, I realized that N=4, L=20 was 40 years ago, so if now the nephew was 44, we can increment 16 to get 50
44+16=50

Answer:

i d k 20???????????

Step-by-step explanation:

Answer:

The visitor attended no special exhibits and so paid a total of $10 just to get in.

An equation to represent the cost of admission could look like this:

f(x) is the total cost.

x is the number of special exhibits attended.

f(x) = 2x + 10

If I see no special exhibits on my visit,

x = 0, then

f(0) = 2•0 + 10

f(0) = 10

I only pay $10.

         The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions.

        A formula for the question at hand is 2x minus 20 divided by 3 Equals 2x, or (2x - 20) /3 = 2x.

The difference in degrees over the last 24 hours is represented by x in this equation, which predicts temperature change.

We must find x in the given equation.

(2x - 20) /3 = 2x \s (2x - 20) = 3(2x) (2x) ...........(Multiply by 3 on both sides)

2x - 20 + 20 = 6x + 20 ...........(Add 20 to both sides)

2x - 6x = 6x + 20 - 6x ..........(Subtract 6x from both sides) (

-4x = 20 \s x = -5 ..........(Divide by - 4 on both sides)

As a result, x = -5 for the given equation (2x - 20) /3 = 2x.

To Learn more About equation, Refer:

https://brainly.com/question/2972832

#SPJ13

Answer:

     y

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

  x²¹ z⁵

Step-by-step explanation:

 (x⁻⁹ y³ z⁻²)²

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

   x³ y⁵ z

   x⁻¹⁸ y⁶ z⁻⁴

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

   x³ y⁵ z

        y⁶

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

 x³ ⁺ ¹⁸ y⁵ z¹ ⁺ ⁴

      y

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

     x²¹ z⁵

I hope this helps!

After simplification by rule of exponent solution is,

⇒ y /  x²¹ z⁵

We have to given that;

The expression is,

⇒ (x⁻⁹ y³ z⁻²)² /  x³ y⁵ z

Now, We can simplify by rule of exponent as;

⇒ (x⁻⁹ y³ z⁻²)² /  x³ y⁵ z

⇒  x⁻¹⁸ y⁶ z⁻⁴ / x³ y⁵ z

⇒ y⁶ / x³ ⁺ ¹⁸ y⁵ z¹ ⁺ ⁴

⇒ y /  x²¹ z⁵

Thus, After simplification by rule of exponent solution is,

⇒ y /  x²¹ z⁵

Learn more about the equation visit:

brainly.com/question/28871326

#SPJ6

Answer:

Remember, ratios are just fractions, and fractions are just division problems.

Step-by-step explanation:

Step-by-step explanation:

25%of 20 is 5

subtract from the total of the whole candy.

The solution is x = √ 14, it is irrational

The closest integer approximation to the solution is 4

From the information given, we have that;

42 equals 3 x squared

This is represented as;

3x² = 42

Let's take the following steps to determine the value of x

Divide both sides by the coefficient of x²

x² = 42/3

x² = 14

Take the square root of both sides, we have;

x = √ 14

The solution is an irrational number

An irrational number is described as a number that cannot be expressed in a fractional form.

They are real numbers that expressed as quotients

Examples of irrational numbers are;

√5, √7, √11, √13

Now, let's find the square root, we have

= 3. 74

Take '7' as 1 and add to the whole number 3, we get;

= 4 ; to the closest integer

Hence, the value is 4

Learn more about irrational numbers here:

https://brainly.com/question/28819748

#SPJ1

Firts get the equation

Second, write the equation in form of Ax +

The given vertices are A(1,4), B(3,-2), and C(4,2).

The reflection over the x-axis is expressed as

This means we have to multiple each y-coordinate with -1. Let's do it!

The Sumerians were different from other people of their time as they wee more advanced.

The Sumerians were a southern Mesopotamian people whose civilisation flourished between approximately 4100 and 1750 BCE. Sumer was an ancient civilization that flourished in the Fertile Crescent region of Mesopotamia, between the Tigris and Euphrates rivers. Sumerians are regarded as the creators of civilisation as we know it today, according to their advancements in language, governance, building, and other fields.

They were able to take technologies produced elsewhere and use them on a far larger scale. This allowed them to mass-produce commodities such as textiles and pottery, which they could subsequently trade with others.

Learn more about Sumerians on:

https://brainly.com/question/27825932

#SPJ1

Using the equation for the distance between two points, the distance between Ross and Rachel is given by the following option:

D. 19 miles.

Suppose that we have two points with coordinates [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]. The shortest distance between them is given by the equation presented as follows:

[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

This formula is derived from the Pythagorean Theorem, as the points form a right triangle in the xy-plane, and the hypotenuse represents the distance between them.

Their coordinates in this problem are as follows:

Each unit on the plane represents a mile, hence their distance is given as follows:

[tex]D = \sqrt{(8 - (-4))^2+(-4 - 11)^2}[/tex]

D = 19.2 miles.

Rounded to 19 miles, hence option D is correct.

The complete problem is given by the image at the end of the answer.

More can be learned about the distance between two points at https://brainly.com/question/18345417

#SPJ1

Answer:

The slope would be 25/1 or 25.

Step-by-step explanation:

Use the formula y2-y1 over x2-x1. Or use rise over run.

Normal time taken for operation = 7.7

Charlene's work performance is faster than normal time.

Need to define Charlene's average time:

8.4 + 8.6 + 8.3 + 8.5 + 8.7 + 8.5)/6

Avg time taken= 8.5.

Performance rating = 110/100 = 1.1

normal time taken:  8.5/1.1

normal time taken= 7.7

hence, 8.5 [tex]\geq[/tex] 7.7

Charlene is faster than normal time.

You can learn more about time from:

https://brainly.com/question/28050940

#SPJ4

We have the expression:

Adding the parts with x and the parts without x we have:

Wich gives us:

Wich is a polinomial of first degree.

AAS = Angle , angle and one side of 2 congruent triangles

SSS = All 3 sides are measure same of the 2 triangles.

ASA = 2 angles and the side between them are same

HL = A right triangle is congruent if its hypotenuse and one of its legs are congruent with the hypotenuse and one of its other legs.

The dimensions of the triangles' sides and angles determine whether two or more triangles are congruent. A triangle's size is determined by its three sides, and its shape by its three angles. Pairs of corresponding sides and corresponding angles in two triangles are said to be equal if they are congruent. They share a similar size and shape. In triangles, there are numerous congruence conditions. For the two triangles to be congruent, they must be the same size and shape. It should be possible to superimpose the two triangles under examination. A triangle's position or appearance appears to change when we rotate, reflect, and/or translate it. In that situation, we must recognize the six components of a triangle.

To know more about congruency ,visit:

brainly.com/question/7888063

#SPJ13

Answer:

  3.97%

Step-by-step explanation:

You want to know the annual interest rate, compounded daily, that will result in $43,000 growing to $75,000 in 14 years.

The formula for the account value is ...

  A = P(1 +r/n)^(nt)

where P is the principal invested at annual rate r compounded n times per year for t years.

Filling in the given values, we can solve for r.

  75000 = 43000(1 +r/365)^(365·14)

  75/43 = (1 +r/365)^5110 . . . . . divide by 43000 and reduce the fraction

Taking the 1/5110 power gives ...

  (75/43)^(1/5110) = 1 +r/365 ≈ 1.00010886855

  r/365 = 0.0010886855 . . . . subtract 1

  r = 0.001086855·365 . . . . . multiply by 365

  r ≈ 0.039737 = 3.9737%

The required interest rate is about 3.97%.

The summation is the adding two quantities thus the reasonable estimate of the total length of the trench is 1 1/2 meters so option (C) is correct.

A summation, also abbreviated as a sum, is the outcome of adding two or more numbers or quantities.

There could be only two terms, but there could be one hundred, a thousand, or a million.

Here are always an integer number of terms in a summation.

As per the given,

Length of the trench on the first day = 18/20 meters

Length of the trench on the second day = 9/20

Total length of the trench = 18/20 + 9/20

Take LCM as 20

⇒ (18 + 9)/20 = 27/20

⇒ 1.35 which is closest among the given option by 1 1/2 meters.

Hence "The summation is the adding two quantities thus the reasonable estimate of the total length of the trench is 1 1/2 meters".

For more information about summation

brainly.com/question/10777222

#SPJ1

Simplified version of the given radical expression would be...

[tex]5x^2\sqrt{7x}[/tex]

Hope this helps!