A force of 18 lb is required to hold a spring stretched 2 in. beyond its natural length. How much work W W is done in stretching it from its natural length to 7 in. beyond its natural length

Answers

Answer 1

Answer:

Step-by-step explanation:

Average force is (19 + 0)/2 = 9 lb

2 inches = 1/6 ft

W = Fd = 9(1/6) = 1.5 ft•lb


Related Questions

Statsssssssssssssssssssssssssssss

Answers

the answer is b = 6.

Help I will give brainliest

Answers

the inequality is 8 (w+18) ≤ 19

Answer: -15.625

Step-by-step explanation:

Let w represent the number:

8 (w + 18) ≤ 19

[tex]\frac{8\left(w+18\right)}{8}\le \frac{19}{8}[/tex]

[tex]w+18\le \frac{19}{8}[/tex]

[tex]w+18-18\le \frac{19}{8}-18[/tex]

[tex]w\le \:-\frac{125}{8}[/tex]

-125/8 or -15.625

Check:

[tex]8\left(-15.625+18\right)\le \:19[/tex]

[tex]8\cdot \:2.375 \leq 19[/tex]

[tex]19 \leq 19[/tex]

Therefore, the number is -15.625

Help help help math math help

Answers

Answer:

63°

Step-by-step explanation:

Angle 2 is congruent in angle that has 63°

Refer to the attached pic

After the math contest, Basil noticed that there were four extra-large pizzas that were left untouched. In addition, another three slices of pizza were uneaten. If there were a total of 51 slices of pizza left, how many slices does an extra-large pizza have

Answers

s = number of slices for a large pizza

so if "s" is the number of slices in 1 large pizza, the total for 1 pizza will just be 1s, for two pizzas will be 2s and so on, so for 4 pizzas the total will just be 4s.

we also know there were an extra 3 slices, and we also know that whatever 4s is plus 3 will give us the total of 51 slices of pizza.

[tex]4s + 3 = 51\implies 4s = 48\implies s = \cfrac{48}{4}\implies \boxed{s = 12}[/tex]

75° b Arrange the three side lengths in increasing order. 350 c [?]​

Answers

Answer:

a < b < c

Step-by-step explanation:

The side opposite the larger angle measure is the longer side.

The side opposite the smallest angle measure is the shortest side.

The sum of the three angles  = 180° ; (75° + 35° + ? = 180°). The missing angle is 70°

The angles in order from the smallest to the largest:

  35°  < 70° < 75°

The side for the shortest to the largest

side opposite 35° is a

side opposite 70° is b

side opposite 75° is c

Answer a < b < c

Correct option is C)
Using angle sum property in △ABC
∠A+∠B+∠C=180


⇒50

+60

+∠C=180


⇒∠C=70


In any triangle side opposite to the largest angle is the longest side.
Here ∠C is largest and side opposite to it is AB
∴AB is the longest side.
Then comes ∠B and side opposite to it is AC
∴AC is the second longest side.
Then comes ∠A and side opposite to it is AC
∴BC is the shortest side.
So the increasing order of sides is
BC

NEED HELP PLS
Use point-slope form to write the equation of a line that passes through the point (-14, -17) with slope 1.​

Answers

Answer:

point-slope form: y-y1=m(x-x1) -> m=slope, (x1, y1) = coordinates of a point

point = (-14,-17) -> x1=-14, y1=-17

slope = 1 -> m=1

y-(-17)=1*(x-(-14)

y+17=1(x+14)

you don't need the *1 but some teachers are picky about that

Answer:

y + 17 = 1 ⋅ ( x + 14 )

Step-by-step explanation:

i think... trust someone else because i'm not 100% sure..

answer this pleaseEeeeeeee

Answers

Answer:

no solution ?

Step-by-step explanation:

Answer:

Infinitely many solutions because the system of equations are the exact same.

Ahmad gives his friend Juana a lottery ticket for her birthday. The ticket cost Ahmad $1, and the back of the
ticket says, "The overall odds of winning a prize with this ticket are 1 : 50, and the expected return for this
ticket is $0.50.6000000
Ahmad says, "lf 1,000 people each bought one of these tickets, they'd have spent $1,000 in total and get back
about $5,000."
Juana says, "The probability that one of these tickets wins a prize is 0.50, on average."
Whose statement is correct based on the expected value?
Choose 1 answer:
Only Ahmad's
Only Juana's
Both statements are correct.
Neither statement is correct.

Answers

According to the information provided the statement of both people is incorrect (option D)

Ahmad's statement is false because he claims that in the situation where 1000 people spend $ 1000 on lottery tickets they would get back $ 5000. However, the recovery would be $ 500 This statement can be verified by doing the following operation:

0.50 x 1000 = 500

On the other hand, Juana's statement is false because she says that people who buy a lottery ticket have a probability of winning of 0.50 on average. However, the true probability is 0.02. This statement can be checked by doing the following operation:

1 ÷ 50 = 0.02

According to the above, none of the statements of the characters is true.

 

Learn more about mathematics in: https://brainly.com/question/19003099

Answer:

Neither statement is correct

Step-by-step explanation:

Got it right on Khan Academy

Convert 27 inches to feet in dimensional analysis .

Answers

Answer:

2.25 feet.

Step-by-step explanation:

Formula: divide the value in inches by 12 because 1 foot equals 12 inches.

So, 27 inches = 27 /12  =  2.25 feet.

Write the equation for the axis of symmetry for the
follow absolute value graph:

Answers

Answer:

The equation for the axis of symmetry is x=3

Step-by-step explanation:

Because the vertex is (-2,3) then the axis of symmetry must pass that point.

The movement of the progress bar may be uneven because questions can be worth more or less (ir
Add: (– 15xz + 4xy) + (20xy - 9yz + 16xz)

O 24x2 y2 – 9yz + x² zº
0 16xyz
0 5xy – 5 yz + 16xz
024xy - 9yz + xz

Answers

Your Answer Is : - 31xz + 16xy - 9yz

The answer is -31xz +16xy-9yz

Stacy started a banking account with $150 and is spending $7 per day on lunch. This situation models which type of function?
ОООО
linear function
quadratic function
exponential function
None of these choices are correct.

Answers

Answer:

Linear

Step-by-step explanation:

She is spending the same amount per day, so it is linear

Question is in image
Which best explains if qudrillateral WXYZ can be a parallelogram?

Answers

Answer:

  A

Step-by-step explanation:

If the figure is to be a parallelogram, opposite sides must be the same length. This requires ...

  15 = x +8   ⇒   x = 7 . . . . long sides equal length

and ...

  x +2 = 2x -5 . . . . . short sides equal length

  7 = x . . . . . . . . . . add 5-x

The value x=7 will make opposite long sides have lengths 15 mm and opposite short sides have lengths 9 mm.

Figure WXYZ can be a parallelogram with one pair of sides measuring 15 mm and the other pair measuring 9 mm.

can someone please help me solve these 4

Answers

Answer:

find the area and then multiply

Step-by-step explanation:

Help with algebra class please

Answers

Answer:

t=6.8

Step-by-step explanation:

t=2.01[squareroot(L)]

L=11.56

t=2.01[squareroot(11.56)]

t=2.01(3.4)

t=6.834

(round to nearest tenth)

t=6.8

Use distribution property to this expression

6( 5 —q) what is the answer plzzzzzz helpppppp meeeee

Answers

Step-by-step explanation:

All the steps are in the pictures. If you have any questions let me know and I'll explain in simple terms :)

Single choice question


The expression 24(1−x) gives the discounted price of a pair of shorts, where x is the percent of the discount written in decimal form.

What does 1−x represent in the expression?


A. Discount price of the shorts.

B. Original price of shorts.

C. Percent of discount.

D. Percent of original price being paid.

Answers

Answer:

D

Step-by-step explanation:

Because the discount price is the whole equation 24(1-x),

the original price is 24 technically, and the percent of discount has been given as x...

Simplify the expression 16+​(−5​)−6/7j−2/7j+6

Answers

It is B because I just not make sense and also c does not make sense and all the others to make sense to only one that makes sense to speak

Lola is in the process of forecasting the sales growth rate for an early-stage venture specilizing in the production of durable running shoes. Lola predicts a 0.15 probability of an 85% growth in sales, a 0.2 probability of a 20% growth in sales, a 0.45 probability of a 10% growth in sales, nd a 0.20 probability of a 20% decrease in sales. What is the expected sales growth rate of the venture?

Answers

Answer:

Step-by-step explanation:

Expected growth =  0.15*85 + 0.20 *20 + 0.45*10+0.20 * -20

= 17.25%.

If 3 basketball game tickets and 4 football game tickets were purchased for $50.25, and if 5 basketball game tickets and 5 football game tickets were purchased for $71.25, what are the costs of basketball game tickets and football game tickets?

Answers

Answer:

Basketball: $6.75

Football: $7.50

Step-by-step explanation:

lmk if you want an explanation

The costs of basketball game tickets and football game tickets are $7.5 and $6.75 respectively.

What is a linear equation?

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

If 3 basketball game tickets and 4 football game tickets were purchased for $50.25, and if 5 basketball game tickets and 5 football game tickets were purchased for $71.25.

The linear equation can be framed:

3x + 4y = 50.25

5x + 5y = 71.25

Here x is the cost of basketball game tickets and y is the football game ticket.

After solving the above linear equation by substitution method,

5([50.25 - 4y]/3) + 5y = 71.25

y = $6.75

x = $7.5

Thus, the costs of basketball game tickets and football game tickets are $7.5 and $6.75 respectively.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ5

Read the below scenario and then answer the questions that follow. The Ancestry Society of North Carolina is compiling records so they can learn about the history of African Americans in North Carolina from 1820 to 1980. They have complied records of all 15,125 gravestones in cemeteries across all 15 counties. They want to choose a sample of 600 records to check their accuracy by visiting the actual gravestones.
a) Using the hat method explain how they could gather a simple random sample of 600 gravestones to visit.
b) Explain why it would be better to take a sample 40 gravestones from all 15 counties.
c) For what population could they make inference about after gathering and examining the sample?

Answers

Using the hat method they can randomly choose the tombstones they are going to visit in each county, the best option is to visit 40 tombstones in each county so that it is the same number of tombstones analyzed in each county. This study will benefit the residents of these counties because the information is specific to them.

When conducting research, it is sometimes necessary to take samples to analyze and study and obtain a result. In the situation presented there are a large number of tombstones to study, however it is difficult for researchers to visit each of the tombstones.

Therefore, the best option is to take a sample, that is, to study a small proportional part of the tombstones to obtain an estimated result of the study. The best way to do this is by taking the same number of samples in each county.

Additionally, the information resulting from this study will directly impact the residents of these counties because they are issues related to their past and their evolution through the years, especially the African American population.

Learn more about research in: https://brainly.com/question/1596108

A cube has a volume of 1000cm^3. Work out the surface area Of the cube.

Answers

Answer:

600

Step-by-step explanation:

V = s×s×s = s³

V = 10×10×10 =1,000

Surface area

6a² = 6(10²) =600

Solve each absolute value equation
1. [n - 3]= 5

Answers

Answer:

n=8

n=-2

Step-by-step explanation:

or,n-3=5

or,n=5+3

or,n=8

Now consider,

or,n-3=-5

or,n=3-5

or,n=-2

please help me on this, thank you​

Answers

45 - 4 =41 and x is 20.5 or 20 1/2

plssss help, need major help with the second question // 25 points

Answers

Answer:

22

Step-by-step explanation:

9 + 8 + 14 = 22

I hope this helps!

What is the measure of angle A in the triangle below? 30° 45° 60° 90°

Answers

Ok done. Thank to me :>

10. If 0 = tan-'1, find angle 0. Angle 0 is an acute angle.

Answers

Answer:

  45°

Step-by-step explanation:

  θ = arctan(1) = 45°

__

Make sure your calculator is in degrees mode.

_____

Additional comment

The tan⁻¹( ) function is the inverse tangent function. It can be read as "arctangent of ..." or "the angle whose tangent is ...". In spreadsheets and some calculators, it comes in two flavors: ATAN(x) and ATAN2(x, y). The latter is useful for finding the angle associated with a vector whose components are known, and that can be in any of the four quadrants.

Calculators will give an angle in degrees or radians according to the mode that is set. Spreadsheets always give the angle in radians. The range of a calculator tan⁻¹( ) or ATAN( ) function is -π/2 to π/2 radians, or -90° to 90°.

Put the numbers in order from least to greatest: -2.15,-9/4,2,-2,-15/7

Answers

-9/4 < -2.15 < -15/7 < -2 < 2

Erin spent half of her weekly allowance at the movies. To earn more money her parents let her wash the car for
$7. What is her weekly allowance if she ended with $12?

Write an equation to represent this situation

Answers

Her allowance is 10 dollars
12-7=5 -> 5*2=10

59) Two times a number added to another number is 25. Three times the first number minus the other number is 20.
Find the two numbers.

Answers

[tex]\huge \bf༆ Answer ༄[/tex]

Let the first number be x and second one be y !

Here's the Expressions representing the above scenario ~

[tex] \sf2x + y = 25[/tex]

[tex] \sf3x - y = 20[/tex]

If we add these two equations we will get ~

[tex] \sf2x + y + 3x - y = 25 + 20[/tex]

[tex] \sf5x = 45[/tex]

[tex] \sf x= 45 \div 5[/tex]

[tex] \sf x = 9[/tex]

Now, plug the value of x in first equation ~

[tex] \sf2x + y = 25[/tex]

[tex] \sf(2 \times 9) + y = 25[/tex]

[tex] \sf18 + y = 25[/tex]

[tex] \sf y = 25 - 18[/tex]

[tex] \sf y = 7[/tex]

Therefore, the first number is x = 9 and the second number is y = 7

Other Questions
Please help!! What are Okazaki fragments? why do the copper square, penny, and the statue of Liberty all soluble in water? If a number has 8 as a factor, then both 2 and 4 are factors Why did Charles Lindbergh rise to fameA. He flew on a nonstop solo journey across the Atlantic Ocean B. He produced the first selling bestselling country western albumC. He became a leading journalist during the golden age of sportsD.) He portrayed ordinary characters in popular silent films Please help me, its urgent! How did the Chinese political system influence Kublai Khans government?Kublai Khan kept Chinese bureaucracy in place.Kublai Khan kept Chinese social classes as they were.Kublai Khan kept the Chinese tax system in place.Kublai Khan kept Chinese laws and fines as they were. The conditional relative frequency table was calculated by row using data from a survey of one stations television programming. The survey compared the target audience with the type of show, either live or recorded, over a 24-hour time period. A 4-column table with 3 rows titled television programming. The first column has no label with entries adult, children, total. The second column is labeled live with entries 0. 625, 0. 5, nearly equal to 0. 583. The third column is labeled recorded with entries 0. 375, 0. 5, nearly equal to 0. 417. The fourth column is labeled total with entries 1. 0, 1. 0, 1. 0. Which is the best description of the value 0. 375 in the table? Given that the program was targeted at adults, there is a 37. 5% chance that it was recorded. Given that the program was recorded, there is a 37. 5% chance that it was targeted at adults. 37. 5% of the programs are targeted at adults. 37. 5% of the programs are recorded. Can I have...... fries and..... orange juice, please? In a paragraph of at least 150 words, deduce who Kingsolver's primary audience is and discuss why. Include at least onequote from the essay to support your idea. Find the product (3a- 4a)^2 Tourists ____________ Thai souvenirs at traveling places. generally findnever findsfind generallyfinds how did the Byzantine Empire have a lasting influence on European culture? 3Select the correct answer.What step can an organization take to improve its culture?OA.conduct regular development programs for employeesOB. employ people belonging to a certain age group onlyO C. keep its number of employees to a minimumOD. employ people with similar financial backgroundsResetNext Please help I really need help(40 points)Match each theorem with its description.1.If two angles form a pair of vertical angles, then they are congruent.2.The sum of the measures of the interior angles of a triangle is 180.3.If two sides of a triangle are congruent, then the angles opposite those sides are congruent4.The midsegment of a triangle is parallel to the third side and its length is one-half the length of the third side.5.If two parallel lines are intersected by a transversal, then corresponding angles are congruent.6.If two parallel lines are intersected by a transversal, then alternate interior angles are congruent.7.If two parallel lines are intersected by a transversal, then the alternate exterior angles are congruent8.If two parallel lines are intersected by a transversal, then the same-side interior angles are supplementary.Match Triangle Sum TheoremAlternate Exterior Angles TheoremAlternate Interior Angles TheoremSame-Side Interior Angles TheoremCorresponding Angles PostulateIsosceles Triangle TheoremVertical Angles TheoremTriangle Midsegment Theorem Quest-ce quon aime faire?Say what these people like to do in their free time. Pls help me with my French assignment ASAP!! solve pls brainliest1. Why is it better to give than receive during the holiday season?2. Why is it good for the human spirit? Find the value of 5x + 6 when x = -2 Which career may require the most years of schooling? executive chef health and wellness manager food scientist pastry chef the empirical formula for trichloroisocyanuric acid Evaluate the expression-11^3The value of the expression is How much weight can a Electromagnet carry