# Posts by Mark

Total # Posts: 1,728

**math**

A little help please, thanks. Kelly conducted an experiment. In each trial she flipped a coin and rolled a number cube that has sides labled 1 to 6. The results are shown above. What is the experiementl probability that her next flip will be tails? Trial 1, Outcome 3, H Trial ...

**Calculus**

Your classmate claims that the the function f(x,y) = x^3(e^{x^2?3y^2})?(17?3x^2)(y?2) does not have an absolute maximum nor an absolute minimum when the function is restricted to the disk x^2+y^2 ? 7. Please explain why this is incorrect.

**Math**

Need some help setting this up. Thank you. A dance studio measures 150 feet by 120 feet. A scale drawing of the dance studio floor measures 10 units by 8 units. What scale was used to create the scale drawing? A) 1 unit: 8 feet B) 1 unit: 10 feet C) 1 unit: 15 feet D) 1 unit: ...

**Math**

A hippopotamus can stay under water for 15 minutes. A sea cow can stay under water y minutes. This is 11 minutes longer than one third the time a hippopotamus can. Write an equation and solve to determine how long the sea cow can stay under water.

**Math**

Greatly appreciated

**Math**

I'm stumped on this question, would appreciate some help please. Ms. Babalola has a bag that contains 4 white beads, 6 red beads, 5 yellow beads, and 5 blue beads. One head is selected and not replaced. Then a second bead is selected and replaced. Then a third head is ...

**math**

suppose that the average number of snow globes per household is distributed between 3 and 9.

**Language Arts**

Thank you!

**Language Arts**

The football team cannot play ____ best when it is so hot. A. its ** B. our C. their D. you're I had this question in a language arts meeting with my teacher but I forgot the answer. I know that she talked about it being a trick question though so I'm not sure.

**Social Studies**

Colombian eradication programs designed to limit or halt the production of crops used to produce drugs is unlikely to cause a decrease in A. deforestation B. poor soil quality. C. The population of Columbia. D. the number of healthy Columbian children. My mom thinks It's ...

**Language Arts**

Which sentence correctly uses pronouns? A. If people want to succeed in life, they must know the rules of the game. B. If someone wants to succeed in life, we must know the rules of the game. C. If a person wants to succeed in life, you must know the rules of the game. D. If ...

**Language Arts**

My bad. I didn't see that. I think it's D.

**Language Arts**

I think it's B.

**Language Arts**

Which sentence correctly uses pronouns? A. If people want to succeed in life, they must know the rules of the game. B. If someone wants to succeed in life, we must know the rules of the game. C. If a person wants to succeed in life, you must know the rules of the game. D. If ...

**Physics**

The work done by one mole of a monatomic ideal gas (gamma=5/3) in expanding adiabatically is 964 J. The initial temperature and volume of the gas are 395 K and .0848 m^3. Obtain a) the final temperature and b) the final volume of the gas.

**Physics-Please Help**

A foot pushes against the ground with a force of 777 N in the vertical direction with a perpendicular displacement of 0.125 m away from the COM and 850 N in the horizontal direction with a perpendicular displacement of 0.025 m away from the COM. If the calf muscle pulls with a...

**Math generating functions**

at present, there is one-hundred thousand in a trust fund. The fund earns two % interest per year, but ten% of the fund is given away each year. Also, ten-thousand is put into the trust fund per year. 1a) Obtain and solve the difference equation by generating functions

**Statistics**

Sickle cell disease is an inherited blood disorder that affects red blood cells. Since it is a recessive disorder, a person inheriting two sickle cell genes will have the disease, whereas a person inheriting only one sickle cell gene will be healthy, but will carry the sickle ...

**hisory**

Are you a teacher from NGMS?

**Ed tech**

Which of the following questions will most likely be answered by displaying data on a bar graph? A. Which bank account earned interest the fastest last year? B. Which ice cream flavor do the most students prefer? ** C. How many total hours did the class spend sleeping? D. How ...

**Scott ---algebra**

Scott... wouldn't the x be -6?..thanks posted by mark today at 6:56pm. use intercepts to graph the line described by each equation: -6y = -4x + 24 I was told that the x intercept is 6 the y intercept is -4 Can you please explain to me how that's the answer step by step...

**algebra**

use intercepts to graph the line described by each equation: -6y = -4x + 24 I was told that the x intercept is 6 the y intercept is -4 Can you please explain to me how that's the answer step by step please (baby steps) Thank you

**math**

Write a system of equations, three equations/three unknowns, that has (1, 2, 3) as the solution.

**pre algebra 8**

Michael wants to rent a car on his vacation. The rental fee is 60 dollars per day plus a refueling charge of $40. He has at most 400.00 to spend. The inequality 60d +40 <= 400 can be used to find d, the number of days he can rent the car. Solve the inequality and interpret ...

**Grade 8 prealgebra**

Michael wants to rent a car on his vacation. The rental fee is 60 dollars per day plus a refueling charge of $40. He has at most 400.00 to spend. The inequality 60d +40 <= 400 can be used to find d, the number of days he can rent the car. Solve the inequality and interpret ...

**grade 8 pre-algebra**

Grace earns 7 dollars for each car she washes. She always saves 25 dollars of her weekly earnings. This week, she wants to have at least 65 dollars in spending money. How many cars must she wash? Write and solve an inequality to represent this situation. Interpret the solution...

**Math help**

is it 11?

**Math help**

10.7238053

**Math help**

So how do I solve this?

**Math help**

Paul is painting a square wall with an area of 115 square feet. To the nearest foot, what is the length of the wall? (1 point) 11 29 ** 42 58

**chemistry**

Calcium carbide (CaC2) reacts with water to produce acetylene as follows. The complete reaction of 25.2g CaC2 produces ____ grams of calcium hydroxide. CaC2(s) + 2H¬2O(g) ? Ca(OH¬)2(s) + C2H2

**mark check my work algebra**

a cartoonist uses the function below to calculate the net profit he earns from sellings his drawings.In the function, d represents the number of drawings he sells. N(d)= 30(d)-$500...what is domain of N(d)? is the answer all non negative real numbers?

**pre algebra**

f(x)=9x+7 The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined. help why is the answer negative infinity, infinity? thank you so much...please explain in plain ...

**pre algebra**

what is the domain of the function below? f(x)= -x^2 + 11 thank you choices are: 1. (- infinity, 11) 2. (-infinity, infinity) 3.(-11, 11) 4. (11, infinity)

**Math/Physics**

Steve (85 kg) is gliding (v ? 0) east on his cross-country skiing across a flat section of snow and is experiencing a wind resistance of 2 N against him. The coefficient of kinetic friction between the skis and the snow is 0.09. If the force of friction and wind resistance ...

**pre algebra**

Lilliana is training for a marathon. She runs the same distance every day for a week. On Monday, Wednesday, and Friday, she runs 3 laps on a running trail and then runs 6 more miles. On Tuesday and Sunday, she runs 5 laps on the trail and then runs 2 more miles. On Saturday, ...

**Calculus**

a pebble is dropped into a calm pond, causing ripples in the form of concentric circles. the radius r of the outer ripple is increasing at a constant rate of 1 root per second. When the radius is 4 feet, at what rate is the total area A of a disturbed water changing? Thank you!

**pre algebra**

Jonathon is starting a new job where he will earn $100 per week plus 15% commission on all sales. Write an equation and solve it to show what his sales were for a week if he earned $380.00? Round your answer to the nearest integer. Thank you! I think you start with 10 +.15s = 380

**Social Studies**

The Inuit made temporary shelters in the summer out of which type of material? A. Snow B. Animal skin ** C. driftwood D. metal I'm confused because they made tents out of driftwood and animal skin.

**PE**

Thank you Ms.Sue

**PE**

Wait no C

**PE**

A ________ is the way a person reacts to a situation based on the social environment in which a person grows up. Coping Strategy Defense Mechanism ** learned emotion primary emotion

**Language Arts**

So that's everything I need to answer on the first sentence?

**Language Arts**

What impact did your Independent Reading selection have on you as a reader? Would you recommend your selection to a friend? Why or why not? Support your response with at least two pieces of evidence from your Independent Reading selection. Be sure to give the title and author ...

**Math**

How many ounces of 1% antifreeze solution must be added to 100 ounces of 40% antifreeze solution to obtain a 16% antifreeze solution? how do I set this equation up?

**Social Studies**

I just did it. It said it's pro-immigration

**Social Studies**

It asks this on my quiz.

**Social Studies**

Since Canada’s labor force growth is made up of 70% immigrants and is projected to rise to 100%, you might best speculate that Canada’s government has a(n) ______________ policy. A. anti-immigration B. pro immigration C. Constitutional ** D. democratic

**math**

here are a series of questions and my answers are down below, please help me if I am wrong 1. Sain Advertising Ltd.’s opening trial balance on January 1 shows Supplies $1,600. On January 11, the company purchased additional supplies for $2,510 on account. On January 31, ...

**9th grade algebra**

solve for h The formula for finding the area of a trapezoid is A = 1/2 (b1 + b 2)h where A represents the area of the trapezoid, b1 and b2 are bases, and h represents the height. Solve the formula for h. I know the answer is h = 2A/b1 + b2 but I don't understand why...can ...

**Economics**

You have $3000 in an account that yields a nominal return of 6%. If the inflation rate is 3%, how long will you have to leave your money in the account for it to double in real terms?

**Math **

You have $3000 in an account that yields a nominal return of 6%. If the inflation rate is 3%, how long will you have to leave your money in the account for it to double in real terms?

**Language Arts answers**

Players wear helmets and pads for protection. (direct objects, predicate nouns) Helmets and pads for protection.(direct object) However, injuries can sometimes be serious or lasting. (indirect objects, predicate adjectives) Sometimes be serious or lasting.(predicate adjective...

**Language arts help**

Okay, thank you guys!

**Language arts help**

Ohhhhh. A sport and also entertainment is the compliment (Predicate noun) Right?

**Language arts help**

Identify the complement in each sentence. Then, indicate its type in parentheses. Football is a sport and also entertainment. (indirect objects, predicate nouns) _____________________________ Please help. I have no idea how to do this. I don't know how to do it. help!

**Journal entries accounting**

journalize the following entries: 1, Received partial payment of $211 from J. Kronsnoble for work billed on June 7. 3. Paid for supplies purchased on June 4. my answers: 1. cash 211 accounts recvieable 211 3. supplies 258 accounts payable 258

**Math **

Sam is at the driving range practicing his swing. During Sam’s golf drive, the initial angular velocity of his club is 5 rad/s at the start of the backswing. The constant, average angular acceleration of the club between the start of the backswing and the instant it ...

**Math**

Sam is at the driving range practicing his swing. During Sam’s golf drive, the initial angular velocity of his club is 5 rad/s at the start of the backswing. The constant, average angular acceleration of the club between the start of the backswing and the instant it makes...

**Algebra**

12,500+750x=22,500+250x 12,500+750(20)=22,500+250(20) 12,500+750(20)=27,500 22,500+250(20)=27,500 Cars Sold=20cars

**Algebra**

Answer: 30,24 30-24=6 30+24=54

**Math/Physics**

Sam is at the driving range practicing his swing. During Sam’s golf drive, the initial angular velocity of his club is 5 rad/s at the start of the backswing. The constant, average angular acceleration of the club between the start of the backswing and the instant it ...

**Math**

Okay thanks, but how would you then calculate the total displacement from there? Sorry I am just a bit lost.

**Math**

You are going hiking in Brown County State Park this weekend and want to plan your route to Lake Monroe. Starting from the parking lot, you plan on hiking 2300 m due west, 17500 m due south, 1900 m due east, and 1200 m due north. What will be the total distance of your hike ...

**Physics**

Actually I think I got it. So I could just add both N component and E component together to get a final resultant of 22.911 N of E then correct? Thanks

**Physics**

Hey thanks, but could you explain it a little? But also would the final resultant be 13sin(40)m/s? Why would we not use cos in this instant?

**pre algebra**

a(n-3)+8=b solve for n an-3a +8=b (subtracted an from left side) I get: 3a+8 = b-an =3a +8 = b-a(n) =3a+8/b-a = n but i think this is wrong...help...thank you

**algebra 1**

given that 1 mile is 5280 feet, covert 92 feet per minute to miles per hour I don;t get it...the part that confuses me is the "per minute" ..i don;t get the relationship to the mile thing....totally stumped..sorry can't even offer an idea how to do this one......

**Math**

In how many ways can 4 married couples seat themselves around circular table if at least one husband sits beside his wife?

**Language Arts**

Choose the phrase that would best replace the italicized words in the sentence. the ringing of the school bell was "music to my ears" A. a pleasant melody B. a band playing loudly C. a welcome sound** D. a warning signal

**Social Studies**

Both parliamentary and unitary systems A. deny voting rights to their citizens. B. Give most power to the states. C. Have strong national executive leaders. ** D. Forbid local governments from making decisions.

**math 131 freshman college**

40/45 - 36/45

**math 131 freshman college**

Ms.Sue I get late responses for some reason He said 3 or 1 so I said no. I didn't see the revised response.

**math 131 freshman college**

I don't think so

**math 131 freshman college**

What do you think it is?

**Social Studies**

I meant nation states for 1.

**Social Studies**

1. Which statement best describes nations? A. must follow the laws set by the United Nations. B. Nations have less political power than do regional organizations. C. Nations interact almost exclusively with other nations in their region, D. Nations have political power over a ...

**Educational Tech**

I think it's B then.

**Educational Tech**

Which of the following should you use to change text size, color, and font face to make a section label stand out? A. Overtype B. Heading Styles C. text wrapper ** D. Footnote

**Social Studies**

So it's D?

**Social Studies**

Canada is the largest trading partner for the United States because

**Social Studies**

A) the U.S. cannot get goods from other places. Reactivate B) Canada has better farming areas than the U.S. ** C) the U.S. and Canada are unified by trade agreements. Reactivate D) Canada and the U.S. are located close to one another.

**Physical Science**

Seems like the plmun students particularly in 1st year knows how google and post a question in this site. Hahaha

**building a stair system**

My stair system, call it a triangle, is 360 inches in diameter, and 77.5 inches high. what is the length and formula?

**Math**

A farmer kept track of his cows and chickens by counting both the legs and the heads, if he counted 78 legs and 35 heads, how many cows and how many chicken did he own?

**Accounting**

A company operates an arcade place where customers put money into game membership cards and they also accumulate points for winning and can be redeemed for prizes. How to account for the credits not yet used and also the points? I would think.... 1) For Game card: Ex) put in $...

**RE: PsyDAG**

So Swimmer B will arrive at the shore first?

**math**

Two simmers are swimming in a lake. Swimmer A starts swimming at a speed of 1m/sec towards the shore from a distance of 30 m. Swimmer B starts swimming towards the shore from 10m behind swimmer A but he swims at 1.5m/sec. Which swimmer will arrive at the shore ?rst ?

**math**

C(8,5)=8!/(5!(8-5)!) So do I * these numbers next to come up with the answer I got 120

**math**

how many different 5 player teams can be chosen from eight players? What formula do I use to solve this?

**Riddle**

I make it happen then I get lost

**Statistics**

Two cards are drawn in succession from a deck without replacement. What is the probability that both cards are greater than 2 and less than 8?

**8th gr algebra **

There are 52 cards in a standard deck. if you draw a card, do not replace it, and then draw 4 more cards, one at a time without replacement, how many possible outcomes are there? I don't get it...Thank you

**alalgebra 8th grade check my work**

At an amusement park, Tami chooses one each from the following options: 3 movies, 20 rides, 6 snack shops. Find the number of possible outcomes. Is it 3 x 20 x 6 = 360 possible outcomes? thanks!!!!!

**Wave Particles**

A stationary proton absorbs an x-ray with a wavelength of 0.24 nm. Determine the proton's final velocity.

**Trig/Pre-Calc**

A bird is flying 30 mph in a direction 30 degrees south of east. Affecting the flight of the bird is a wind blowing from the northeast to the southwest at a speed of 10 mph. What is the resulting speed of the bird?

**Math**

Joe takes his wife and four children to the movies. their tickets cost $56. the adult tickets cost twice as much as the children's tickets. how much is one adult ticket?

**geometry/check my work**

For triangle ABC , which transformation composition is Commutative? a) rotate 30 degrees and then translate 2 units down b) translate 5 units to the right and rotate 90 degrees c) reflect across the y-axis and then rotate 90 degrees d) reflect across the y -axis and then ...