# Posts by Jack

Total # Posts: 1,823

**Production & Operations Mgmt in Business**

If someone could help me, I am truly desperate here. I am struggle with this problem. – Simple Linear Regression Applications Interpretation and Use of Computer Output (Results) (1) The management of an international hotel chain is in the process of evaluating the ...

**AP Chemistry**

A 34.05 gram liquid sample of an unstable compound is deposited in a metal piston assembly that has a cylinder with a diameter of 20.0 cm. After the sample is added, the piston is placed in contact with the liquid and the piston vent is closed. This process removes all ...

**Physics**

Do your own work

**math**

2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

**math**

2x^2 + 5x - 8 = 0 Solve the quadratic equation by completing the square.

**Math**

Ally loves the beach and decides to spend the summer selling various ice cream products on the beach. From her account course, she knows that her total cost is calculated as Total Cost= Fixed Cost + Various Cost She estimates that her fixed cost for the summer season is $50 ...

**Physics**

A major leaguer hits a baseball so that it leaves the bat at a speed of 28.0 and at an angle of 36.9 above the horizontal. You can ignore air resistance.At what two times is the baseball at a height of 9.50 above the point at which it left the bat?

**precalculus/check please**

Find the difference quotient by using f(x+h)−f(x)/h 1) f(x) = √(2x+1) answer (√(2x+1+2h) - √(2x+1))/h can you check please

**precalculus**

Find the difference quotient by using f(x+h)−f(x)/h 1) f(x) = √(2x+1) answer (√(2x+1+2h) - √(2x+1))/h can you check please

**math**

A piano manufacturer has a daily fixed cost of $1200 and a marginal cost of $1500 per piano. Find the cost C(x) of manufacturing x pianos in onde day. Use your function to answer the following questions: a)On a given day, what is the cost of manufacturing 3 pianos? b)What is ...

**math**

The cost in $ of making "x" leaf blowers is given by C(x)=45x+6000. Each blower can be sold for $60.00 a)find revenue function b)find equation that expresees that profit for selling "x" leaf blowers. c)How many units must be sold to break even?

**US history**

What was Florida name before call it Florida?

**geometry**

Rays PQ and QR are perpindicular. Point S lies i the interior of angle PQR. If the measure of the angle SQR=4+7a and the measure of angle SQR=9=4a, find the measure of angle of PQS and angle SQR.

**Math**

why would I care? who would use this in real life It seems a little pointless

**Math**

✖️

**Physics**

A major-league pitcher can throw a baseball in excess of 46.6 m/s. If a ball is thrown horizontally at this speed, how much will it drop by the time it reaches the catcher who is 16.3 m away from the point of release?

**Physics**

A golfer hits a shot to a green that is elevated 3 m above the point where the ball is struck. The ball leaves the club at a speed of 16.8 m/s at an angle of 43.9° above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air ...

**Physics**

A skateboarder shoots off a ramp with a velocity of 6.8 m/s, directed at an angle of 56° above the horizontal. The end of the ramp is 1.1 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the origin the point ...

**Algebra HELP!**

Starting with the kinematics equation x = vot + ½ at^2, derive an expresion relating the acceleration and initial velocity of an object to two paired position and time measurements. In other words, if an object's position is x1 at t1, find the acceleration a and the...

**US history**

Indicate below the type of government each colony had in the year 1750. 1 NEW HAMPSHIRE; ROYAL 2 MASSACHUSETTS; ROYAL 3 CONNECTICUT; SELF-GOVERNING 4 RHODE ISLAND;SELF-GOVERNING 5 NEW YORK; SELF-GOVERNING 6 NEW JERSEY;ROYAL 7 PENNSYLVANIA;PROPRIETARY 8 DELAWARE; PROPRIETARY 9 ...

**psycology**

One consequence of providing an inaccurate opertional definition of the properties we intend to measure, is that the measurement will be: Invaild, Reliable, Valid or Powerful

**health**

Me too lol we all have the same school that's awesome.

**Math**

7.8< o <13.8

**social studies**

If a bow with a draw weight of 60 kilograms were to fire at someone 5 meters away but the user had to roll first before drawing back and firing two arrows. Would the target have enough time to dive for cover behind a rock?

**math**

Using Cuisenaire rods, what is the unit rod if the purple rod represents 2/3?

**Biomechanics**

A ball is thrown vertically upwards in the air at a velocity of 50(m/s) and reaches a maximum height of 20(m). Calculate the time when the ball reaches the 10(m) mark, while going up and coming down. Use the following equation of motion: y(f) = y(i) + v(i)t+1/2at^2 y(f) and y(...

**math**

a-2/6 -5 = a+3/3 SOLVE FOR A solving equations with fractions

**Physics**

Please help me with my physics homework I've been given a week and can't for the life of me work out how it is done. Tom has a rubber ball which weighs 5 kilograms and bounces 3.8 meters from a drop height of 4 meters using this information please work out the mass of ...

**Algebra**

4x=8 and 5y=15 x=2 y=3 02.x+0.4y=1.7 and 8.3x-6.3y=-4.3 x=1.93 and y=1.31

**Chemistry**

g=.00461 ?

**Chemistry**

What mass of chromium II chlroide (CrCl2) is dissolved in 150.0mL of solution to prepare .250M solution? Please Help

**Health**

Writeacher, I need you help to rephrase and answer a question on the use of children in advertising. 1) I need to rephrase this: “ Advertisers want to reach into the hearts and minds of the people who are watching the ads. Today’s washing powders don’t just ...

**Art**

Writeacher,could you please check if all these sentences are possible? 1) I’m sure he didn’t rob the bank. He can't have robbed the bank He couldn't have robbed the bank . (is this possible?) 2) I’m certain he stole the ring He must have stolen a ring. ...

**Art**

Could you please check these sentences, Writeacher? Thank you. 1) A job seeker should make a short list of the job's requirements and should keep it in his mind during the interview. In this way he can bring in examples to demonstrate that he is the right person for the ...

**Art**

I left out these sentences. I hope you can have a look at them,too. Can you tell me if the modals are possible, Writeacher? 1) I’m sure he didn’t rob the bank. He can't have robbed the bank He couldn't have robbed the bank . (is this possible?) 2) I’m ...

**Foreign languages**

I urgenlty need you to check these sentences, please.Thank you. 1) A job seeker should make a short list of the job's requirements and should keep it in his mind during the interview. In this way he can bring in examples to demonstrate that he is the right person for the ...

**Art**

Could you please help me express the following evaluations? Thank you. 1) You wrote exactly what I included on the photocopy without varying (hardly/almost) anything. The only word you changed is not an English word. 2) You also failed to include information on the reading ...

**Art**

Can you please have a look at these sentences, please? 1) This information about the Augustan Age was not asked for in your test. You weren't supposed to introduce the Augustan Age. You should have focused on both Walpole's and Pitt's policy, the rise of a new ...

**Foreign languages**

Could you please check these sentences? Thank you,Writeacher. 1) In the first part if the novel she writes letters to her parents asking them for advice. However, she resists all her master's advances protecting virtue. 2) As a reward, he proposes marriage to her and she ...

**math**

ral sal tal val each have 1.85 in quarters and dimes.No two have the same number of coins together how many quarters do they have

**Pre-calc**

simplify cot(x+π)

**Pre-calc**

how many solutions are there to csc^2x=25 (0≤x<2π)

**Pre-calc**

Focus of the ellipse 9x^2+2y^2=36

**Pre-calc**

I am given the graph of y=f(x) and I am asked to sketch the graph of y=-2f(-x). How do I move and/or rotate the given graph?

**history**

please help me please.......

**history**

describe the difference between the poor and wealthy citizens of rome.

**history**

describe the difference between the poor and wealthy citizens of Rome.

**geometry**

Two cones are similar. The larger cone, R, has a volume of 1331 cubic feet and the smaller cone, S, has a volume of 64 cubic feet. Find the scale factor of Cone R to Cone S.

**Math**

insert parentheses to make equation true. 5 / 3 + 3 x 5 = 4 1/6

**Probability Math**

Through a mix up on the production line, 5 defective light bulbs were shipped out with 32 good ones. If 4 are selected at random, what is the probability that at least 3 of them are defective?

**physics**

1345 m/s^2

**Calculus**

The manager of a large apartment complex knows from experience that 90 units will be occupied if the rent is 360 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 9 dollar increase in rent. Similarly, one ...

**Math**

what is g(f(x))? and f(g(x))? if f(x)=(1)/(sqaure root3x) and g(x)=x^2-5 Thanks!

**Chemistry**

How much volume(mL)of 2.50 M NaOH(aq)must be added to 25.0 mL of water to produce a 1.50 M NaOH solution? Thanks!

**math**

meg has 20 pet stickers to go on a page 1/4of them are dog stickers 1/2of them are cat stickers the rest are rabbit stickers how many rabbit stickers does she have?

**College Algebra**

ln(8x+3)=ln11

**science**

An aluminum bar is 2m long at a temperature of 20 degrees C What will be the length of the bar at a temperature of 100 degrees C

**physics**

FM radio signals are electromagnetic waves transmitted between frequencies of 88 MHz and 107 MHz. Find the range of wavelengths for these signals. largest___m smallest___m

**math**

3 sqrt-64x^3

**@elena**

i noticed you helped a lot of people with their questions with physics ? can you hep me out please ? In putting, the force with which a golfer strikes a ball is planned so that the ball will stop within some small distance of the cup, say 2.00m long or short, in case the putt ...

**h.s. physics**

In putting, the force with which a golfer strikes a ball is planned so that the ball will stop within some small distance of the cup, say 2.00m long or short, in case the putt is missed. Accomplishing this from an uphill lie (that is, putting the ball downhill, ) is more ...

**h.s physics**

a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to hthe point where it ...

**h.s. physics**

a baseball pitcher throws a baseball with a speed of 38m/s. estimate the average acceleration of the ball during the throwing motion,. in throwing the baseball, the pitcher accelerates the ball through a displacement of about 3.5 m from behind the body to hthe point where it ...

**English 7 Help! - please read**

I think it just means she had a close relationship with the tree house. Like parents often have a soft spot or close relationship with their children. I don't know what story you're talking about, but basically I'm guessing the Tree house was like a get away spot ...

**math**

What is the square root of pi?

**english**

Hi I have to compare Mending Wall by Robert Frost to modern day time. I was thinking about comparing it to a song or movie, but I'm not sure of any. Do you have any ideas?

**Statistics**

disk error

**math plz help**

how would you determine the number of diagonals in a regular 41-gon ?

**Probability**

Service time, T, at an auto center has a Weibull distribution with parameters θ=3.7 and β=1.35. What is the probability that at least 8 of the next 10 customers will have to wait more than 4.69 hours? What is the expected number of customers that will have to wait ...

**Math**

Hmmm well I certainly didn't want them to write a complex essay for me, just some a little help and some ideas. It's whatever though.

**Math**

I asked a question earlier: Identify and discuss 4 key actions taken by the U.S. Government between 1790 to 1820 that established long term policy in the U.S. Please help me answer this, thank you so much. and I got this response:Please note that we don't do students' ...

**social**

What were 3 groups that were in motion around the U.S. in the 19th century. Why did they change locations and how did this impact their lives?

**ACT**

Any practice online for ACT, PSAE or sample questions.Please To much stress.

**geometry**

A sandpit in the shape of a rectangular prism has length 7 feet, width 5 feet, and height 1.75 feet. It is filled to the brim with sand. Joe puts this sand into a second sandpit having the same shape but a larger base. He needs 17.5 cubic feet of sand to fill the extra space ...

**history (urgent)**

Identify and discuss 4 key actions taken by the U.S. Government between 1790 to 1820 that established long term policy in the U.S. Please help me answer this, thank you so much.

**math**

what is the volume of a triangle prism with a base area of 24ft*2 and a height of 18ft

**physics**

A vertical tube with a tap at the base is filled with water, and a tuning fork vibrates over its mouth. As the water level is lowered in the tube, resonance is heard when the water level has dropped 18 cm, and again after 54 cm of distance exists from the water to the top of ...

**spanish**

yo me

**spanish**

Yo ______ lavo ______ manos y ______ cara. ______ cepillo ______ dientes y ______ cepillo ______ pelo. Yo ______ pongo ______ ropa.

**chemistry**

draw amino acid.

**History**

Explain what does Robert.e.Lee says to his son in letter.

**History**

Explain what does Robert.e.Lee says to his son in letter.

**statistics**

Consider a random sample of 37 students, and consider the number who graduate in six years. . Find the probability that 20 students in the sample graduate in six years

**physics**

A 4.0 kg object is lifted 1.5 m. (a) how much work is done against the earth's gravity ? (b) repeat if the object is lowered insteadof lifted

**critical thinking test AU**

1. Question : The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses: Student Answer: 4 CORRECT an average ...

**math**

2 feet/ hour

**math**

1- writing to explain- why might you need to measure a perimeter with a measuring tape instead of a ruler? 2- how are a ruler, a yardstick, and a measuring tape the same? how are they different? i don't 1 answer and i try 2 answer please check is it right or not 2) a ruler...

**math**

2- A ruler a yardstick and a measuring tape are the same because they can measuring items. A rule a yardstick and measuring tape different because they can't measuring the same length. i don't know 1 answer please help me and i want to know number 2 is right or not

**math**

i don't this answer please help

**math**

please help

**math**

1-writing to explain- why might you need to measure a perimeter with a measuring tape instead of a ruler? 2-how are a ruler, a yardstick , and a measuring tape the same? how are they different?

**3 grade english**

thank you very much

**math**

my uncle said 85 meter come in answer

**math**

A park has the shape of a trapezoid. Two of the sides are 25 meters long. The other two sides are 40 meters and 20 meters long. What is the perimeter of the park my answer is 110 meters

**Maths- Trigonometry**

4. A,B and C are points on a horizontal plane. A is 75 m from C on a bearing of 210 degrees and the bearing of B from C is 120 degrees. The bearing of B from A is 075 degrees. From A the angle of elevation of the top T of a vertical towel at C is 42 degrees. Find a. the ...

**english**

Ms. Sue help me last night and then i write again something then nobody help me

**english**

i just wanted to know how did you do # 9 because in the word their no SM word is only wr,kn,st,mb,and gn their no word like SM so please check again and i make (#9 GNASH) i just want to which i did it right or not rest of all correct yes or no

**english**

i don't #5

**english**

1-write wrote written 2-knight knob knit 3-listen wrestler whistle 4-thump comp plumber 5-gnaw 6-wreath 7-doorknob 8-plumber 9-knash 10-thimble 11-whistle 12-starled 13-crumb 14-wrinkle 15-knock

**english**

consonant patterns wr,kn,st,mb,gn directions read each word and idenify the consonant pattern with the silent letter. on the lines,write two more words that have the same silent consonant pattern. underline the consonant pattern in each word you write. 1- write _______ ...