Devin

This page lists questions and answers that were posted by visitors named Devin.

Questions

The following questions were asked by visitors named Devin.

1- a pipe of diamter 1cm carreiers water flowing at 1m/s. the end of the pipe is bplugged and there is a small holeon the top as shown which is 1mm diameter. How high does the water go? *=hole ()____________*___() 2. you're indoors, with a door 1m wide an...

I need help-exam tomorrow! Although it is too late for your exam, in the future, we need specifics to provide help plus time to respond. We are volunteers and are not available 24/7. I hope this helps you in submitting future questions. Thanks for asking.

What words does tcnaio make unscrambled? Try these: http://www.ssynth.co.uk/~gay/anagram.html http://wordsmith.org/anagram/ http://www.unscramble.net =) action atonic tonica cation

I need help with classification Organism Kingdom Phylum Class Order Family Genus Species Crabs (Hermit and Fiddler) Animalia Arthropada Mussel Animalia Mollusca Shrimp Animalia Arthropada Fish (Striped Bass) Animalia Chordata Jellyfish Animalia Cnidaria S...

Let H={a+bi a,b is a element R, a^2+b^2=1} be a subset of the non zero complex numbers C*. Prove that H<C* under complex multiplication using the one-step subgroup test. Also describe the elements of H geometrically.

If 8 paper clips are placed on one side of the balance 2 cm from the fulcrum,where should 4 paper clips be placed on the other side?

In a regression analysis, suppose there is, in fact, no seasonal pattern to sales, and the trend line is estimated using dummy variables to account for seasonality. What effect would this have on the estimation? My guess is that it wouldn't affect the est...

Calculate the density for a rectangular block using the following measurements, Length: 2.70cm, Width:1.10cm, Height: 9.09cm, Mass: 72.17g. Round your answer for density to 2 decimal places. Include the correct unit for density.

9x-8y=42 4x+8y=-16

What is wrong with the statement? El va de Miami a Buenos Aires. Esta tomando un vuelo nacional.

How are the natural resources of the Northeast led to jobs for the New Englanders?

How would you approach a classmate to recive more info about the assignment using tone, audience, content and purpose?

the distance of a region north or south of the equater in degrees is called?

h2SO4(aq)+2NAOH(aq)--->NA2SO4(aq)+2H2O(L) how to solve this

develop a presentation for early childhood and middle childhood groups that addresses health issues appropriate for each developmental level

What is the percentage yield for a reaction if you predict the formation of 21 grams of C6H12 and actually recomvered only 3.8 grams? is the answer 18% 3.8g/21g x 100% pls verify.

How many milliliters of pure acetic acid (density = 1.05 g/mL) would be required to prepare 1.00 L of the solution?

The letters A,B,and C represent three different digits. Determine the number ABC if ABC + ACB ---------- BCA

Let f(x)=ax^5+bx^3+cx+9, where a,b, and c are constants. If f(6)=17, determine the value of f(-6).

When the waiter was asked to slice the 16-inch (in diameter) pizza into exactly 4 slices of equal size, he decided to do so using concentric circles rather than radial slices. Determine the radii of each of the three cuts he had to make.

So, I need to graph (with my calculator) this out, and then find the area, and finally the volume. y=(x-1)^1/2, y=0, x=2, x=5; about the x-axis I ended up with some crazy answer like 15π/2, and I believe that's incorrect (but it might be right, idk). Any...

I'm supposed to find the volume of this, I've tried it multiple times. I can't seem to get one of the possible answers. y=x+2, y=16-x^2, x=-2, x=2 A. 50.67 B. 51.67 C. 8.44 D. 16.89 E. 101.33 F. 152 Thanks for any input!

Charlie can grade exams in 2 hours. It takes Mark 6 hours to grade the same exams. If they work together, how long will it take for them to grade the exams?

explore the significance of the coefficient "a" in determining the shape of the graph of y=a|x|.[

Please show me the steps to solve this problem: The total shipping weight of two crates is 358 pounds. One crate weighs 124 pounds more than the other. What does eah crate weigh?

The time it takes you to go 12 miles upstream is 5/4 the time it takes you to go 14 miles downstream. If the current is 3mph, how fast do you go in still water.

Find the roots of the given equation by completing the square: ax^2+bx+c=0

A 2kg piece of gold metal at 90 C is placed in 5 liters (=5kg) of water at 30 C. Determine the final temperature (Tf).

need a example of the ecosystem cliche

A math teacher wrote x^2+bx+c=0 on the board and asked students to find the two real roots. Alice miscopied one of the coefficients and found that 1 and 4 were the roots. Andy miscopied a different coefficient and found that -2 and 3 were the roots. Deter...

The stopping distance d of a car in feet is related to the speed in mph by the equation d(s)=.02s^2+1.1s Calculate the speed when your stopping distance is: 1.) 51ft 2.) 315.12ft

a.) Given that f(3)=5 and f'(x)=x/((x^3)+3), find the linear approximation of f(x) at x=3. b.)If the linear approximation is used to estimate the value of f(2.9), will it be an overestimation or underestimation? Show justification.

The graduation cermoney lasted only two hours. What part of the sentence is lasted only two hours? A) verb B) compound verb C) complete Predicate D) Complete subject

Company "A" sells soil at 11 cents per cubic foot. While company "B" sells it at 3 dollars per cubic yard. You need to have 20 cubic yards of soil planted. What is the better company to go with? and how much will you save?

What is the density of a substance that weighs 500g and fills a container that is 1/2 liter in size?

How do I find Vector Resolution F = 0.300 g N, theta = 60 degrees. Do I take tan inverse (.3 sin 60/.3 cos 60)?

Which of the following sentences contains an italicized word that's used as a predicate adjective? A. Jerry looks ILL today. B. Jerry looks INTO the microscope. C. Jerry looks disdainfully at the pile of laundry D. Jerry looks at the map. Is it c?

A batter hits a pitched ball when the center of the ball is 1.35 m above the ground.The ball leaves the bat at an angle of 45° with the ground. With that launch, the ball should have a horizontal range (returning to the launch level) of 106 m. (a) Does th...

Graph the following function. Find and state the domain, intercepts, asymptotes, intervals of increase and decrease, local extrema, concavity, and inflections points. F(x)=(x+1)/(square root(x^2+1)) I got so far... Domain: (-infinity, infinity) Intercepts...

Find all root of ln(4-x^2)=x correct to 8 decimal places. List all successive approximations.

A bullet with a mass m=12.5 g and speed v=85.4 m/s is fired into a wooden block with M=113 g which is initially at rest on a horizontal surface. The bullet is embedded into the block. The block-bullet combination slides across the surface for a distance d...

Can I simplify (x^.75)((200-3x)^.5)?

Find and simplify a) f(a), b) f(a + h) and c) F(a+h) - f(a) / h ; 1. f(x) = x^2 + 5x -10

The acceleration of a particle moving along a straight line is inversely proportional to its speed with the constant of porpotionality being k. The body starts from the position s = x0 ^i with initial speed v0. Determine the velocity of the particle as a...

The velocity of a body A is given by v(t) = 2t^i + t 3^j. The body starts from rest at time t = 0 and position s(0) = 2^i 10^j. At what time, t, does the body cross the X axis? What is the average velocity of the body for the time interval, t = 0 and the...

The area bounded by the curve y = 2x^2-x^3 and line y=0 is rotated around the y-axis. The volume of the resulting structure can be expressed as V = a(pi)/b, where a and b are coprime positive integers. What is the value of a + b?

6 male students and 3 female students sit around a round table. What is the probability that no 2 female students sit beside each other?

A state lottery requires you to choose 4 cards from an ordinary deck: I heart, 1 club, 1 diamond, and 1 spade in that order from the 13 cards in each suit. If all four choices are selected by the lottery, yo win $5,000. It costs $1 to play. Find the expec...

If D = 3204 meters and d = 1247 meters in the figure, what is the magnitude of the force on the space ship to the nearest MN? Consider all three to be point masses. I'm not even sure to begin with this question. Any help will be much appreciated!

A planet/moon has a mass of 77.89 × 1023 kg and a radius of 7.9 × 106 meters. What is g on the surface to the nearest hundredth of a m/s2? Once again, not really sure where to go with this. Out of the 10 problems I've only had trouble with this and one ot...

A horse pulls a cart with a force of 145 newtons at an angle of 30 degrees above the horizontal and moves along at a speed of 2.5 m/s. How much work to the nearest kJ does the force do in 6 minutes?

A ladder can fall for two reasons. If it is set too steep and climber gets their mass to the left of the ladder's base, the ladder likely will fall over backwards. If the ladder is set at too shallow of an angle the required force of friction between the...

A 7.56-g sample of gas is in a balloon that has a volume of 10.5 L. Under an external pressure of 1.05 atm, the balloon expands to a volume of 15.00 L. Then the gas is heated from 0.00 degree C to 25 C. If the specific heat of the gas is 0.909 J/g*C, what...

How do you solve sqrt(1-(9/x^2))? I know the answer is sqrt x^2 -9/x but I'm not sure how to get the answer on my own. If you could show steps on how to get the answer that would help me a lot!

1 L of N_2_ gas, having a pressure of 2.5 atm, is added 1 L of Ar gas, having a pressure of 3.7 atm, in a sealed, rigid flask. What is the final pressure in the flask?

To find out what people think, the Gallup Poll selected a random sample of 520 women and 506 men. The pollsters showed them a list of personal attributes and asked them to indicate whether each attribute was “generally more true of men or of women”. When...

Can anyone please show me how 3^n/6^(2n+1) becomes 1/2^n(6^(n+1))= 1/6)/12^n when you divide top and bottom by 3^n? Thank you and have a great day!

what is the exponential form of 1000 * 1000

At 2pm the temperature is 22 degrees, by 4am it is negative 7 degrees. We think the answer in the change of temperature is 22 degrees am I right?

At 2pm the temperature is 22 degrees, by 4am it is negative 7 degrees. We think the answer in the change of temperature is 29 degrees am I right?

A plane cruising along at 268 m/s, in straight level flight wants to drops a bomb. He is at a height of 1000m. At what distance should the pilot release the bomb in order to hit his target?

Calculate the total heat (in Joules) needed to convert 1.602 x 101 grams of ice at -1.383oC to liquid water at 8.554 x 101oC. Melting point at 1 atm 0.0oC Cwater(s) = 2.09 J/goC Cwater(l) = 4.18 J/goC delta Hofus = 6.02 kJ/mol

When a chemist burns ammonia according to the reaction below she finds that the reaction releases heat. (It is exothermic.) 4NH3(g) + 3O2(g) 2N2(g) + 6H2O(g) The enthalpy of the reaction DH = -1267 kJ. What is the enthalpy change (in kJ) when 7 grams of a...

ranging minerals from the hardest to the softest. Chalk, fingernail. steel screw and paper clip

43. A block of mass 2.00 kg rests on a ramp tilted at 25.0°. Coefficients of friction for the block/ramp: μs = 0.300, μk = 0.100. A string passing over a high quality pulley connects the block with a bucket as shown below. The bucket contains sand but a h...

what is a hype song to rap to a economics question. Like this example: search (I'm on econ) on youtube

A 0.885 M solution of sulfuric acid (H2SO4) is to be reacted with a 0.552 M solution of sodium hydroxide to make sodium sulfate and water. How many L of the H2SO4 solution will react with 0.842 L of the NaOH solution? Give your answer to 3 decimal places.

66.9 g of a substance X dissolves in enough water to make 0.428 L of a 0.68 M solution. Calculate the molar mass of X in g/mol.

What is the order of the reaction for the following reaction and for each reagent given? A + 2B + C --> productions Experiment / A / B / C / rate 1 / 0.002 / 0.15 / 0.132 / 0.0057 2 / 0.002 / 0.25 / 0.132 / 0.0158 3 / 0.003 / 0.15 / 0.132 / 0.0114 4 / 0.0...

how do i find the vertical asymptote of x−1 / x(x-2) so far i got x-1 / x^2-2x

What effect does Father’s return have on the Sakane family? A Yuki finds it hard to adjust to having both parents tell her what to do B Yuki’s mother continues to worry about the safety of her family C Ken is relieved that his father will take over as hea...

County fair tickets can be ordered in advance. There is a one time processing fee of $10 per order. Individual tickets cost $3 a piece for rides and food. Write an algebraic expression to represent the total cost for a visit to the fair.

Bank A pays 4.79% compounded monthly, while Bank B pays 4.8% compounded quarterly. Which bank pays more?

The logistic growth function f(t)= 100,000/5000e^-t describes the number of people, f(t), who have become ill with influenza t weeks after its initial outbreak in a particular community. A) How many people became ill with the flu after the epidemic began?...

A football is kicked into the air. Its height in meters after t seconds is given by h(t)=-4.9 (t-2.4)^2+29. A. What was the height of the football when it was kicked? B. What is the maximum height of the kick? C. How long did it take for the football to r...

Write the system of equations as an augmented matrix. Then solve for x and y. -3x-y=11 -9x-2y=34 Solution =

In a 21 meter race between a turtle and a hare, the turtle leaves 8 minutes before the hare. The hare, by running at an average speed of 0.5 meters per hour faster than the turtle, crosses the finish line 4 minutes before the turtle. What are the average...

Find the perimeter of the given triangle. Round your answer to the nearest tenth if necessary. ∆ADF, if ∆ADF ∼ ∆BCE, given BC = 17, BE = 9, CE = 12, and DF = 15. ∆BCE is inside of ∆ADF

Find x the angle of depression from the top of a lighthouse that is 181 ft above water level to the waterline of a ship 867 ft offshore. Round your answer to the nearest tenth of a degre

Perry made $34,885 this year if the inflation rate was 6.5% how much was his salary actually worth

Answers

The following answers were posted by visitors named Devin.

What do we call the numbers that cannot be arranged into 2-row arrays?

x-4=3x+12 -12 -12 x-16=3x -x -x -16=2x x=-8

Thank you so much for the suggestions.

I have my powerpoint presentation all set up. I am just having a hard time with health issues that are appropriate to each developmental issue. The assignment wasn't clear as to what kind of health issues and I don't know how these issues would differ bet...

Do you know of any health issues that may be different between early and middle childhood? They actually have to be put on two different slides.

After many attempts and variables, I came up with this: You start off with 3x5=15 Then, square the 6=36 Add 15+36=51 Take 51+54 which equals 105 and lastly, 105 minus 5 equals... 100!

Vinegar is a solution of acetic acid (C2H4O2) in water. Its concentration is 5.0%(w/w) and its density is 1.01 g/mL. That was the information given before the question, then it asked for the molarity of vinegar and I got .84mol/L

1.)C 2.)D 3.)B 4.)D 5.)C 6.)A 7.)B 8.)B 9.)A 10.)D 11.)C 12.)D 13.)C 14.)A 15.)A 16.)D 17.)B 18.)B 19.)B 20.)C

I figured it out. 40 minutes. Thanks anyway

I need information on Obama's budget proposal and the House's budget proposal to compare and contrast. I am having trouble finding valid, easy-to-access information on both sides. Help please?

explore the significance of the coefficient "a" in determining the shape of the graph of y=a|x|.[

i have that worksheet, on the first one you need to divide 174/3 the second one divide 6.30/6

I'm taking this same class you should add me on Facebook lol Symone kaepernick

4455551 = 4x4x5x5x5x5x1=10000 the proof is not valid.

n^2+n+1 = (n+1)^2 - n (n+1)^2 and n will always have the different parity, so the difference between them is always odd.

Spaceship is 2.5 x 10^7 kg! Asteroid is 3.5 x 10^18 kg. Thanks! I'll try and figure it out and compare answers if you respond back!

Ok, I came up with 29

The answer is 14 days I took the quiz.

C is the answer:)

Use addition or substitution to find the value of x for this set of equations. 2x - 3y = -15 x = 4y

Don't understand?

Can you help I don't understand. Thanks

What's the answer?

The final formula should read FinalKE= InitialKe-ChangePE-Wfriction hope this helps anyone doing this problem for homework!

Which quadrilateral has 4 sides of equal length 2 pairs of opposite sides that are parallel and no right angles

Yep the answer is D.

Do you have any choices or is it one where you answer it with what you know?

Mole Ratio of Mg : Mg3N2 = 3 b: 1 mole of Mg3N2 = moleofmagnesium over 3 = 8.0mol over 3 = 2.67 mol mass of Mg3N2 = mole * molar mass = 2.67 mol * ((3* 24) + (2 * 14)) g / mol = 2.66.67 I hope that helped you out :)

Moose and Messi are correct :)

Well for both of you crappy console lovers... PC GAMING IS SUPREME TO CONSOLE GAMING. ONE WORD... CUSTOMIZATION!

I think you right,I'm not sure but I remember answering a question like this and I think it is D.

I think they named it "PLZ" because they wanted someone to please help them. My understanding is that "PLZ" translates to please.

i changed my answer for #6! I think its D now and for #8 i think that is B now

Odourless, white, cubic crystals. Hygroscopic. Characteristic salty taste. Melting point = 800.8 °C. Boiling point = 1465 °C. Density = 2.165 g/cm³ Solubility at 25 °C = 35.9 g/100 g water. Vapour pressure at 865 °C = 1 mm Hg. Atomic number. The atomic nu...

a. (-202i +161k) Just changed the sign to get the answer. b. (75x.640x9.8) = 470.4 equal to the maximum static force

The ratio of dogs to cats at the pet store is 1:3. If there are are 6 more cats than dogs, how many dogs are at the pet store?

At first I thought it was lease but guess not sorry 5th grade homework I hate it lol 🤣🤣🤣

3 pounds of hamburger sells for $6. If Samantha buys 10 pounds of hamburger, how much will she pay? what is it

Adverb phrases, which are quite common, have a variety of uses. As you recall, an adverb modifies a verb, an adjective, or another adverb (describing when, how, or where). An adverb phrase, then, can modify a verb, an adjective, or an adverb. Most often,...

NVM. I got 2 out of 4 on it.

Why does this sound like Sans before he attacks you in Undertale?

The answer is Elizabethan Drama. Just common logic, Queen Elizabeth was alive when Shakespeare was alive, so yeah.

@kawaii potatos How did you get that? I would actually like to know

@steve is completely correct!

The answer is D.

@R_scott Thank you my friend! I was scratching my head doin this. All I had to do was change some of my variable around.

Im from the future obey me mortals

Can you stop repeating the question