For a machine, the output force is 20 N, and the output distance is 4 m. Which must be true about the work input? A. It equals 80 J. B. It must be greater than 80 J. C. It must be less than 80 J.

Answers

Answer 1
Work = Force*Displacement
Work = (20 N)*(4 m)
Work = (20*4) Nm
Work = 80 J

So 80 joules of work is the output. Ideally we'd expect 80 J to be the input but that's not the case. There will always be things like heat loss, leading to some level of inefficiency. So if we input some amount of work, say 100 J, then it might drop to 80 J of actual output work after the wasted energy is accounted for.

In short, you have to put more work in than the work you want out. This is why the answer is choice B) It must be greater than 80 J

Related Questions

A stadium can seat 46,000 people for a baseball game. One day, 49,442 people attended a game. How many people had to stand because they did not have a seat? 3. Draw a picture or a chart that shows the information and the question

Answers

49,442-46000=3,442
3,442 people have to stand

The number 12,089 is?
< 12,098.
= 12,098.
> 12,098.
Or none of these is correct

Answers

12,089 is less than 12,098
The first choice is the correct one.

Final answer:

The numbers 12,089 is less than 12,098, as determined by comparing the ones place of each number., hence the correct option is A

Explanation:

The student asks for the correct comparison between the numbers 12,089 and 12,098. To generate an accurate answer, we compare the digits from left to right.

Since the thousands, hundreds, and tens places are the same, we look at the ones place to determine which number is greater. Comparing the ones digits, we see that 9 (in 12,098) is greater than 8 (in 12,089), therefore 12,089 is less than 12,098.

The correct answer is:

12,089 < 12,098.

What do you need to do to solve x/6=18

Answers

Multiply the equation by 6.
  x = 6*18 = 108
x/6=18 

Simple, just multiply each sides by 6 

Answer is x = 108 

Hope this helps! 
Have a great day. 

PLEASE HELP ASAP! BRAINLIEST TO BEST/RIGHT ANSWER

Answers

I won't bore you with the details, but according to my math the answer should be C. 1/2. 

More than 450 students traveled to a state park for a field trip. The school allowed 6 students to travel by car, and the rest traveled on 11 buses, each of which held the same number of students. If there were S students in each bus, which inequality best represents this situation?

Answers

The number students (S) must be greater than the minimum allowed when 450 students.
S > (450 - 6)/11
So now get the 450 alone:
S×11 > 450 - 6
11S +6 > 450 -6+6
11S + 6 > 450

What is the factored form of the following expressions x^2-100xy+24y^2

Answers

x^2 - 100xy + 24y^2


simplifying:

x^2 + - 100xy + 24y^2


reorder the terms:

- 100xy + x^2 + 24y^2

Final Result:

- 100xy + x^2 + 24y^2

What is the simplified form of 8b^3c^ 2a + 4b^3c^2?

Answers

[tex]8b^{3} c^2+4b^{3} c^2[/tex]
[tex]= (8+4) b^{3} c^2[/tex]
[tex]=12 b^{3} c^2[/tex]

Be carefully, normally there is no a in your expression. I think you made a mistake.

Hope this helps !

Photon

Olivia just graduated with an Associates degree and is working as a secretary in a firm earning 9.75 an hour.Her contract stipulates that she will get an annual rasie of 6% until she reaches the rate of $15.50 an hour. sheshow long would it take for Olivia to earn $15.50 an hour? math

Answers

Answer: In about 8 years, she will reach the rate of $15.50

This is an exponential equation. We could write and solve the equation below to find the answer.

9.75(1.06)^x = 15.5


(1.06)^x = 15.5/9.75    Divide both sides by 9.75

x (log(1.06)) = log(15.5/9.75)   Take the log of both sides and bring down the x.

x = log(15.5/9.75) / log(1.06)    Divide both sides by log(1.06)

x = 7.956

Therefore, we can round it up to 8 years.

A drawer contains 4 red socks, 3 white socks, and 3 blue socks. Without looking, you select a sock at random, replace it, and select a second sock at random. What is the probability that the first sock is blue and the second sock is red?

Answers

The probability that the first sock is blue and the second sock is red is:
(3/10) * (4/10)=3/25.

Answer:

[tex]\texttt{Probability}=\frac{3}{25} [/tex]

Step-by-step explanation:

Probability is the ratio of number of favorable outcome to total number of outcomes.

Total number of socks = 4 + 3 + 3 = 10

Number of blue socks = 3

Number of red sock = 4

[tex]\texttt{Probability of selecting blue sock}=\frac{3}{10} \\ [/tex]

[tex]\texttt{Probability of selecting red sock}=\frac{4}{10} \\ [/tex]

For finding the combined probability we need to multiply both the values

[tex]\texttt{Probability that the first sock is blue and the second sock is red}=\frac{3}{10}\times \frac{4}{10}=\frac{12}{100}=\frac{3}{25} \\ [/tex]

[tex]\texttt{Probability}=\frac{3}{25} [/tex]

For the function f(x) = (8-2x)2 ,find f-1 . Determine whether f-1 is a function.




A.
f-1(x) = ;f-1 is a function


B.
f -1 (x) = ; f-1 is not a function


C.
f-1(x) = ;f-1 is not a function


D.
f-1(x) = ; f-1 is a function

Its not A!,

Answers

The answer is C I checked and pass the test with the same answer you should be good.

f­-1(x) = 8±√x/2; f­-1 is not a function, is the answer

What is the scale factor used to create the dilation?
A: 1/2
B: -1/2
C: 2
D: -2

Answers

SF = 2

ansswer

C: 2

hope it helps

Rugs sell for $8 per square foot. Beth bought a 9-foot-long rectangular rug for $432. How wide was the rug?

Answers

432 ÷ 8 = 54
The rug had an area of 54 ft²'

54 ÷ 9 = 6 ft
The rug had a width of 6 ft.
The cost of the rug was $432, and rugs sell for $8 per square foot.
Divide 432 by 8 to find the square foot of the rug.

[tex]432 \div 8=54[/tex]

The rug has an area of 54 square foot.
The rug must have the shape of a rectangle.
The formula for the area of a rectangle is [tex]A=wl[/tex] where A is the area, w is the width, and l is the length.

We know the area and the length.
Plug it into the formula. You get the following.

[tex]9w=54[/tex]

Divide both sides by 9 to get the width.

[tex]w=6[/tex]

The width of the rug was 6 feet, which is the same as saying the rug was 6 feet wide. Hope this helps! :)

Using the graph below, calculate the average rate of change for f(x) from x = 2 to x = 6.

exponential function going through points 2, 2 and 6, 6

−4
−1
1
4

Answers

The graph passes through the points (2,2) and (6,6)
This means
f(2) = 2
f(6) = 6

The average rate of change of f(x) x = 2 to x = 6 will be:

[tex] \frac{f(6)-f(2)}{6-2} = \frac{6-2}{4}= \frac{4}{4}=1 [/tex]

Thus the average rate of change of given function from x = 2 to x = 6 is 1

Answer:

The average ate of change for f(x) from x=2 to x=6 is one, (1). Also seen as choice c.

Step-by-step explanation:


A similarity transformation maps ABC to JKL. The measure of of preimage ABC is 105°. The scale factor of the dilation in the similarity transformation is 1.5. If in the preimage corresponds to in the image, what is m?

Answers

From your question above, the answer to m∠J is 105°. A scale factor is a number which scales, or multiplies, some quantity. In the equation y = Cx, C is the scale factor for x.
The correct answer is: C) 105 degrees

What is the equation of a vertical line passing through (−5, −2)?
x = −5
y = −2
x = −7
y = −3

Answers

A vertical line will pass through  one value of x  
here the equation is x = -5   ( the x coordinate of (-5,-2)

Answer:

x = -5

First option is correct.

Step-by-step explanation:

The vertical line is passing through the point (−5, −2).

The equation of a vertical line is in the form x = k

For vertical line, the x-coordinate of each point that lie on the line remains same. Only the y-coordinate is different

For the given point, the x-coordinate = -5

Hence, k = -5

Therefore, the equation of line is x = -5

First option is correct.

Given quadrilateral RSTU, determine if each pair of sides (if any) are parallel and which are perpendicular for the coordinates of the vertices.

R(1, -3), S(4, -1), T(2, 2), U(-4, -2)

Click on the graphic to complete the answer.

Answers

Slope RS: 2/3
Slope ST: -3/2
Slope TU: 4/6 = 2/3
Slope UR: -1/5

Sides RS and TU have the same slope, so they are parallel.
The slope of side ST is the negative reciprocal of the slopes of sides RS and TU, so side ST is perpendicular to sides RS and TU.
Side UR is not parallel or perpendicular to any other side.

The quadrilateral is a trapezoid.

Find two positive consecutive odd integers such that the square of the larger integer is one less than twice the square of the small integer.

Answers

Let
x---------------> first  positive odd integer
x+2------------> second  positive consecutive odd integer

we know that
(x+2)²=2x²-1---------> x²+4x+4=2x²-1-------> x²-4x-5
x²-4x-5=0
using a graph tool--------> to calculate the quadratic equation
see the attached figure

the solution is
x=5

the answer is
the first  positive odd integer x is 5
the second  positive consecutive odd integer x+2 is 7

Answer:

smaller integer = 5

Larger integer = 7

Step-by-step explanation:

Let the first odd integer be x

Then the next consecutive integer will be x + 2

Now, The square of larger integer is 1 less than twice the square of the smaller integer.

As, x < x + 2

Smaller integer = x

Larger integer = x + 2

⇒ (x + 2)² + 1 = 2·x²

⇒ x² + 4 + 4x + 1 = 2x²

⇒ x² - 4x - 5 = 0

⇒ x² - 5x + x - 5 = 0

⇒ x(x - 5) + 1(x - 5) = 0

⇒ (x - 5)(x + 1) = 0

⇒ x = 5 or x = -1

But we need positive integer so x = -1 is rejected.

Hence, x = 5

So, smaller integer = 5

Larger integer = 7

19) What is the effect on the graph of the parent function f(x) = x when f(x) is replaced with f(x) + 3?
A) shifts the line 3 units up
B) shifts the line 3 units down
C) increases the slope of the line by a factor of 3
D) decreases the slope of the line by a factor of 3

Answers

I think the answer is A

3. Use the description of each triangle to draw a picture of the triangle. Write and solve equations to find missing angle measures when necessary. Label the measures of all angles of the triangle and mark congruent sides and right angles. (You do not need to draw the triangle exactly to scale.) (a) right isosceles triangle (b) equiangular (all three angles congruent) isosceles triangle (c) acute scalene triangle with two angle measures of 57° and 82°

Answers

Answer: See Explanation below.

For part A, the right isosceles triangle, you must have a triangle with a right angle, 90 degree. Then, the two legs must be congruent.

For part D, draw a triangle with all 3 angles being 60. This will make the sides congruent also.

For part C, the three measures of your triangle will be 57, 82 and 41. The measures of the sides don't matter, they will all be different.

The sum of three consecutive integers is -96. What is the larger integer

Answers

Let the first integer be x. Since the three integers are consecutive, the next two integers will be x + 1 and x + 2, respectively. Collectively the integers add to equal -96. That means you can set our expressions for the integers to -96, like so:

-96 = x + (x + 1) + (x + 2)

Now we can solve algebraically for x.

-96 = x + (x + 1) + (x + 2)
-96 = x + x + 1 + x + 2
-96 = 3x + 3
-99 = 3x
-33 = x

The first integer is x, so the first integer is -33.
The second integer is x + 1, so the second integer is -32.
The third integer is x + 2, so the third integer is -31.

Let's quickly add these integers to see if their sum is -96.

-33 + (-32) + (-31)
-33 - 32 - 31 = -96

These three consecutive integers add to equal -96. The question asks for the larger integer. Recall that the higher the number in front of a negative sign, the smaller the number. -2 is smaller than -1. That means the order of the integers from largest to smallest is -31, -32, -33.

Answer:
The largest integer is -31.

The perimeter of a rectangle is 256 inches. How long are the sides if the length exceeds the width by 16 inches? mark X represent the width of the rectangle and write the Equation 2X +2(x+16)=256. Solving for X the width of the rectangle is what

Answers

Answer: 56 inches

-------------------------------------------
Equation Given
-------------------------------------------
2x +2(x + 16) = 256

-------------------------------------------
Apply Distributive Property
-------------------------------------------
2x + 2x + 32 = 256

-------------------------------------------
Combine like terms
-------------------------------------------
4x + 32 = 256

-------------------------------------------
Subtract 32 from both sides
-------------------------------------------
4x = 224

-------------------------------------------
Divide by 4 on both sides
-------------------------------------------
x = 56

-------------------------------------------
Answer: The width is 56 inches.
-------------------------------------------

Does the point (3,7) lie on inside or outside the circle

Answers

IM GUESSING OUTSIDE THE CIRCLE
if there was a picture or something it would help a lot but I'm gonna wing it and say inside the circle

here Choose the point-slope form of the equation below that represents the line that passes through the points (−6, 4) and (2, 0).

y − 4 = −one half(x + 6)

y − 4 = 2(x + 6)

y + 6 = −one half(x − 4)

y + 6 = 2(x − 4)

Question 2 (Multiple Choice Worth 2 points)

Given the equation y − 3 = one half(x + 6) in point-slope form, identify the equation of the same line in standard form.

x − 2y = −12

y = one halfx

y = one halfx + 6

y = one halfx + 9

Question 3 (Multiple Choice Worth 2 points)

Given the equation y − 4 = three fourths(x + 8) in point-slope form, identif

Answers

The answers are the following:
1. y − 4 = −one half(x + 6)
Solution:
the point is 4
y=4
y-4=0
the slope is,
y2-y1 / x2-x1
0-4/ 2-(-6)
-4/8 or -1/2

2. The answer is y = one half x + 6
 y − 3 = one half(x + 6)
y-3= one halfx+3
y=one halfx+3 +3
y = one half x + 6

3. The solution for y − 4 = three fourths(x + 8) is,
y-4 = 3/4x + 3/4(8)
y-4 = 3/4x +6
y-4-6=3/4x
y-10=3/4x
-3/4+ y =10
further solution for its standard form is 
(4)y-3/4x =10(4)
y-3x=40
y-3x-40 = 0
but from the choices, the answer is
−three fourthsx + y = 10
The answer for #1 is most deff option 1 good job guy

Which of the following are independent pairs of events? Check all that apply.
A.Flipping two coins and having one show a head and the other show a head
B.Being sneezed on and catching a cold
C.When rolling a pair of dice, getting a total of 6 and having one die show a 3
D.Rolling a 4 on one die and rolling a 2 on another die
E.Seeing clouds and winning the lottery,

Answers

The best answer for these question would be:

A. Flipping two coins and having one show a head and the other show a head

D. Rolling a 4 on one die and rolling a 2 on another die

E. Seeing clouds and winning the lottery

 

Independent events in math means that the first situation does not affect the other variable. It is generally the individual probability that will happen to the solution. Which means that you have to determine whether the first situation will be affected on the second events that will happen. While the dependent events, have the opposite effect.

PLEASE URGENT MATH HELP WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

In the figure, YX−→− and YZ−→− are tangents to circle A at points X and Z, respectively.

mXZ=140∘
mXSZ=220∘



What is the measure of ∠XYZ ?

Answers

The measure of an angle formed by two tangents intercepting at a point outside a circle is equal to half the difference of their intercepted arcs.
XYZ = 1/2(XSZ - XZ)
XYZ = 1/2 (220 - 140)
XYZ = 1/2 (80)
XYZ = 40

The measure of angle XYZ is 40 degrees.

Hope this helps =)

Working​ together, it takes two roofers 10 hours to put a new roof on a portable classroom. if the first roofer can do the job by himself in 12 ​hours, how many hours will it take the second roofer to do the job by​ himself?

Answers

Number of hours the second roofer to do the job by​ himself is 60 hours.

Given that, working​ together, it takes two roofers 10 hours to put a new roof on a portable classroom.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Working together 1/10 roofs per hour

First roofer  1/12 roofs per hour

So, equation is x + 1/12 = 1/10

x = 1/10 - 1/12  

= 6/60 - 5/60 = 1/60

Together, they work  1/60 + 1/12

= 1/60 + 5/60

= 6/60 = 1/10

Therefore, number of hours the second roofer to do the job by​ himself is 60 hours.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ5

So I just wanna see if I got this one correct my question is.... Each volume of an encyclopedia is 2 1/3 inches wide. How many volumes will fit on a shelf 18 inches wide?

Answers

namely how many times does 2 and 1/3 go into 18, well, is just the quotient of both,

let's first convert the mixed fraction to "improper" and then do the division

[tex]\bf \stackrel{mixed}{2\frac{1}{3}}\implies \cfrac{2\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{7}{3}} \\\\\\ \cfrac{18}{\quad\frac{7}{3} \quad }\implies \cfrac{\frac{18}{1}}{\quad\frac{7}{3} \quad }\implies \cfrac{18}{1}\cdot \cfrac{3}{7}\implies \cfrac{54}{7}\implies 7\frac{5}{7}[/tex]

of course, you won't be chopping off a volume, so only the whole number will go from the quotient.

Jamal wrote the following statements: Statement 1: Perpendicular lines are two lines that intersect at 90° angles. Statement 2: All right angles are congruent. Which geometry term does each statement represent?

Answers

For Question 1, the answer would've been A. Statement 1 is the definition of perpendicular lines and Statement 2 is a theorem. 




Statement 1: definition; Statement 2: theorem


Hope this helps

What is the formula of quadratic equations?

Answers

this is the General quadratic equation

Final answer:

The quadratic formula is used to find the solutions of quadratic equations. It is x = (-b ± √(b² - 4ac)) / (2a). The discriminant determines the nature of the solutions.

Explanation:

The formula for quadratic equations is:

x = (-b ± √(b² - 4ac)) / (2a)

Quadratic equations are equations of the form ax² + bx + c = 0. The quadratic formula is used to find the solutions or roots of these equations. The discriminant, b² - 4ac, determines the nature of the solutions: if it is positive, there are two real solutions; if it is zero, there is one real solution; and if it is negative, there are two complex solutions.

Michelle works at a store that sells clothing accessories. The supply function for baseball caps is P=Q-6, where P is the price and Q is the quantity of baseball caps. If Michelle sells the baseball caps for $19 apiece, how many baseball caps will the store make?
A. 31 baseball caps
B. 6 baseball caps
C. 19 baseball caps
D. 25 baseball caps

Answers

All you have to do is substitute the price with P because P is the price.

19 = Q - 6

You'll add 6 on both sides.

25 = Q

So the answer choice D is the right answer.

Answer:

25

Step-by-step explanation:

Given : The supply function for baseball caps is P=Q-6, where P is the price and Q is the quantity of baseball caps.

To Find: If Michelle sells the baseball caps for $19 apiece, how many baseball caps will the store make?

Solution:

The supply function for baseball caps is P=Q-6

where P is the price

Q is the quantity of baseball caps.

Now we are given that Michelle sells the baseball caps for $19 a piece.

So, P = 19

Substitute the value in the function:

19=Q-6

19+6=Q

25 =Q

Thus If Michelle sells the baseball caps for $19 apiece, the store make will make 25 baseball caps .

Other Questions
What basic facilities and services dose la rinconada lack The pyramid shown has a square base that is 18 inches on each side. The slant height is 16 inches. What is the surface area of the pyramid? Prompt Your friend Greg is planning to get in shape so he can try out for the football team next year. He has not exercised regularly since he injured his left knee over two years ago in a skateboarding accident, but he is planning an intense and vigorous exercise regimen. Write a letter to Greg giving him some advice on getting back into shape safely considering his past.This is for online PE. help please!!! In Angle ABC, C is a right angle. Find the remaining sides and angles. Round your answers to the nearest tenth.a = 3, c = 19A. MB. MC. MD M Yul and Sarah's art class started at 11:25 A.M.The class lasted 30 minutes. Yulieft when the class was done. Sarah stayed an extra 5 minutes to talk with the teacher and then left. Write the time that each student left.Explain how you found each time. What was the name of the treaty that ended the Mexican war Cylinders A and B are congruent. Cylinder A has a volume of 27 cm3 and a height of 3 cm. What is the area of the base of cylinder B? Two angle measures in a scaled Triangle are 77 and 62 what is the measure of the third angle For the balanced equation shown below, how many moles of O2 will react with 0.3020 moles of CO2? 2C2H5OH + 6O2 4CO2 + 6H2O0.151 moles O20.201 moles O20.302 moles O20.453 moles O2 Which of the following is not an ingredient in paellaA. El ajo B. El caldo C. Los camaronesD. La olla Which law was passed in the Southern states to oppress blacks and force them into a status of second class citizens in another country do you think this story reflects the sense of disillusionment that arose among the writers and artists durng ww1 John let out 50 foot of kite string when he observes that his kite is directly above a point on the ground 30 feet away from him, how high is the kite ? What measure did populist new deal critic huey long push to end the depression? lower taxes on businesses and for the wealthy redistribute income from the wealthy to poor americans nationalize all private industry reelect franklind. roosevelt to the presidency? if you roll a fair six-sided number cube twice. what is the probability that the first roll is a 5 and the second is a 6? HELP Me A marker is randomly selected from a drawer that contains 20 green, 44 orange, and 30 blue markers. Which statement is true? P(orange)0.53P(green)0.21 P(blue)0.41Thank you Zones in which interpersonal interactions can take place are known as ____. PLEASE HELP ME WITH THIS QUESTION AND DON'T FORGET TO EXPLAIN In the Battle of the Labyrinth - In the Labyrinth, Tyson sobbed because Briares had - A) admitted that he was neither half blooded nor a god. B) lost many of his arms in an attempt to save Tyson C) trudged off a corridor D) been hit in the center of his forehead and died. Sentence syntax should be varied to