Lucas

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

Questions

The following questions were asked by visitors named Lucas.

Train A and train B leave station going in opposite directions. Train B leaves 1/2 later than train A. Train B travels 80km/h faster than Train A. In 2 hours the trains are 3200KMs apart. How fast is each train traveling.. thank you

Find the percent. 13% of 17?

Is Mississinewa Lake a mjor lake in Indiana?

Can someone help me solve this please? [SQRT(2x2 + 6x + 4)] = x + 1

The electron gun in a television tube uses a uniform electric field to accelerate electrons from rest to 5.0×107 m/s in a distance of 1.2 cm. What is the electric field strength?

An electron iwth an initial speed of 500,000 m/s is brought to rest by an electric field. (a) Did the electron move into a region of higher potential or lower potential? (b) What was the potential difference that stopped the electron?

A 75 g bungee cord has an equilibrium length of 1.20 m. The cord is stretched to a length of 1.80 m, then vibrated at 20 Hz. This produces a standing wave with two antinodes. What is the spring constant of the bungee cord?

Using condensed electron configurations, give reactions showing the formation of the common ions of the following elements. (Type your answers in the following order. In the first box enter your answer using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2...

complete the table: y= x - +4 x: +4,0,-4.-6 y: ?,?,?,?

Write two other ratios equal to 9/12?

A car slows down from 18 m/s to rest in a distance of 91 m. What was its acceleration, assumed constant?

How are African Mahogany trees grown, harvested and transported?

"How are African Mahogany trees grown, harvested and transported?" Thank you Ms.Sue for the link but if you read the information in this Wikipedia article you will see that none of these questions are addressed.

A chemistry student weighs out 0.172 grams of acrylic acid (HCH2CHCO2) into a volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800 moles/liter NaOH solution. Calculate the volume of NaOH solution the stud...

Mass of sample 0.0581 g Mass of BaSO4 0.0860 g What is the mass of sulfate?

What would happen if chlorine water was added to an aqueous solution of sodium chloride?

I^- H5IO6 BrO2 HClO I2 Which could not disproportionate?

Al(NO3)3 + NH3 --> ?

A rectangular prism has a volume of 750 cubic millimeters. Its length is 15 millimeters, and its width is 10 millimeters. What is its height

Calculate the volume of a square pyramid if it has a base area of 64 cm^2 and the distance from the apex to a corner of the base is 15 cm. Thank you so much!!!

A tetrahedron is a triangular pyramid in which each face is an equilateral triangle. Calculate the volume of a tetrahedron that has all its edges 6 cm in length. Hint: You will need to know some geometry and trigonometry.

The sector shown is formed into a cone by joining its two radii. Calculate the volume of the cone correct to the nearest whole number. It shows a diagram with a 240 degree sector or two-thirds of a circle with a radius of 12 cm. How do I do this? Thank yo...

Find the length of a rectangle if its diagonal is 34 cm long and the angle the diagonal makes with the length is 27° 50'. (answer correct to the nearest centimetr) Thank you so much Could you be so nice and explain me ho I will count 27° 50'?

-4r^2+21r=r+13 3s^2-26s+2=5s^2+1 Please, please could you be so nice and help me with step by step, I can't find right solution, Thank you so much!!!!

The sum of the first n terms of a sequence is given by 4-4(1/2)^n.calculate the first 3 terms

An arithmetic and a geometric sequence have the same first terms.(2)....and the same second term say X..The sum of the first 3 terms of the arithmetic sequence equals to the third term of the geometric sequence.Calculate the first 3 terms of each sequence...

Eric thinks of 2 sequences.One is geometric and the other arithmetic.Both sequences start with the number 3.The common ratio of the geometric sequence is the same as the common difference of the arithmetic sequence.If the 6-th term of the geometric sequen...

1..The first 2 terms of a geometric progression are the same as the first two terms of an arithmetic progression.The first term is 12 and is greater than the second term.The sum of the first 3 terms od the arithmetic progression is 4/3 less than the sum o...

If n=5 and r=1 (1+b)=10a,determine b in terms of a

Thato caught 4 snails and placed them all in the same small circle on the ground and organised a race......1st snail travelled 24cm in 4minutes,2nd snail travelled 35 cm in 7minutes,3rd snail travelled 33cm in 5minutes and the 4th snail travelled 39cm in...

Determine how long in years it will take the value of a motor vehicle to decrease to 25% of its original value if the rate of depreciation based on the reducing balance method is 21% per annum?

In a quadratic sequence.....Term 2 is 11,Term 4 is -7,term 7 is -64....determin the general term for the sequence

Determine the compound interest rate,correct to two decimal places,Emile would require to triple his investment over a period of 10 years?

A rancher wants to make an animal pen by fencing in an area of 2500000 square feet in a rectangular field and then divide it up with 5 fences down the middle parallel to one side. The rancher wants to use the shortest total length of fencing possible. If...

Please Simplify: (1/8)(40v−24y)−(1/7)(21v−35y+9)−(1/6) (1/11)(55x−22)−(1/2)(18x−2v)

Minni travels to Italy. She changes 550 GBP to euros at an exchange rate of 1 GBP = 1.18 euros. The bank charges commission and then gives Minni 629 euros. Find the amout of the commission in GBP. Thank you so much:))

A farmer has 110 metres of fencing to fence off a rectangular area. Part of one side is a wall of length 15m. Find the dimensions of the ﬁeld that give the maximum area. Thank you so much for a huge help.

A farmer has 110 metres of fencing to fence off a rectangular area. Part of one side is a wall of length 15m. Find the dimensions of the ﬁeld that give the maximum area. Answers: length and width = 31,25m Thank you so much for a huge help.

A company's weekly profit, in riyals, is modeled by the function P(u)=-0.032u^2+46u-3000. where u is the number of units sold each week. a) the maximum weekly profit. Answer: 13531.25 riyals b) the loss for week's holiday period, where no units are sold ....

A rocket follows a parabolic trajectory. After t seconds, the vertical height of the rocket above the ground, in metres, is given by H(t) = 37t – t . Find the length of time the rocket is in the air. Could you please explain me, why answer is 37s? Thank y...

The graph of the function f(x)=2^x/a passes through the points (0,b) and (2,0.8). Calculate the values of a and b. Thank you so much for huge help:)))

A bullet whose mass is 0.0015kg leaves a 5kg leaves a 5kg rifle at a muzzle velocity of 800 m/s. It strikes a 7kg block of wood and becomes embedded in it. After the bullet hits the rock, what is the speed of the bullet/ block system?

In a group of 105 students, 70 students passed Mathematics, 60 students passed History and 45 students passed Geography; 30 students passed Mathematics and History, 35 students passed History and Geography, 25 passed Mathematics and Geography, and 15 pass...

A is the set of all multiples of 4 that are less than or equal to 20. B is the set of all of factors of 24. Find A U B. Thank you so much for huge help:)))

U is the set of positive integers less than or equal to 30. A is the set of natural numbers that are multiples of 5 in U. B is the subset of all of the even integers in U. a) Find n(A U B) b) Find n(A intersect B) c) Find n(A U B' ) d Find n(B intersect A...

On the first day he runs 1.5 km. Every day he runs 10% more than the day befor. a) Write down the distance he runs on the second day of training. ..... 1,5km +0,15 = 1,65 km b) Calculate the total distance He runs in the first seven days of training. When...

10t-640/t^2 = 0 Thank you so much for huge help:)))

A swimming pool is in the shape of a cuboid with dimensions 50 metres long by 25 metros wide by 2.5 metres deep. If the pool is completely filled with water, calculate a) the volume of water in the pool b) the longest straight distance a swimmer could swi...

two functions are defined as follows: f(x)=3/x+1 and g(x)=x-6 a) Write the equations of the vertical and horizonal asymptotes of f. b) Determine the coordinates of the points where f(x) = g(x) Thank you so much for huge help Is ti correct please? answer f...

Petr has a cylindrical block of wood od diameter 6 cm and height 18 cm. He glues the base to a board, but wants to paint the rest of the block. He wants to paint the bottom half of the wood black and the top half white. a) Calculate the surface area of th...

How do you find the dimensions of a box that hold 2xs as many cubes as a box that is 2 by 3 by 4?

The exchange rate from US dollars (USD) to euros (EUR) is given by 1 USD = 0.753 EUR. Give the answers to the following correct to two decimal places. Roger receives 800 Australian dollars (AUD) for 610 EUR. Calculate the value of the US dollar in Austral...

Two students, Mary and John, play a game. Each time Mary passes “start” she received $25. Each time John passes “start” he receives 15% of the amount he already has. Both students start with $200. a. How much money will Mary have after she has passed “sta...

A fish tank in the shape of a cuboid has length 320 cm. Its length is twice that of its width. To enhance viewing, the area of the four vertical faces should be maximized. Find the optimum "viewing area" of a fish tank that is fixed to the wall so that th...

What does the word cycle tell you about the chemical reactions of the Calvin cycle?

I'll bet you can't guess my favorite musical instrument challenged my dentist

A patient’s cost for a hospital stay is determined as follows: Admission = $50 Room charge: first night: $1000 nights 2-4: $1500 per night night 5 and beyond: $2000 per night Surgery: $8500 per surgeon, plus $3000 for an anesthesiologist (a) What would be...

ln(y-9)-ln7=x+lnx Thank you sooo much for helping:))))

Write an equation for the hyperbola. Vertices at ( -5,2) and (-1,2), passing through the point (-6,4) Could you be so nice and help me please:) I have still wrong answer and I have no idea where I'm doing mistake. My work: Horizontal transverse )( Center...

This year Gloria's garden is one foot wider and three feet shorter? What were the dimensions of the garden last year?

In Megabucks, a player who correctly chooses five out of the six winning numbers gets $400. What is the probability of winning $400? Answer is 0.0000924 in the book but I really don't know where I'm doing mistake. my work is = 6!/5!(1!) combination Thank...

The Smiths invested $14,000, part at 3% simple interest and the rest at 4% simple interest for a period of one year. if the total interest earned was $460, how much was invested at each rate?

Solve by the system of equations by substitution. x + 2y + z = 14 y = z + 1 x = -3z + 6 Anyone able to help me with this? I've been stuck on it all day and can't seem to solve it, it doesn't make any sense to me.

Find two values defining tails of the normal distribution with an area of 0.05 each. Thank you so much for huge help:))

A microwave oven supplies 1.000kj per second.how many min should be set on the microwave in order to heat 250.g of water from 24.3 degrees c to its boiling point?

A rectangular room 8m long by 5m wide contains 129m square of air. Calculate the height of the room. I assume that the above question is a trick question. Since the room is 8m high, it then goes that the height I 8metres. Thank you.

can you please show me how to set this up? The variables x and y vary directly. When x is 3, y is 6. Find x when y = 2/3

The sum of two numbers is 82. The difference is 16. What are the two numbers?

I am writing an intro paragraph for comparing and contrasting private schools and public schools. NEED HELP!!

If each of the sides of an isoceles triangle is 5 x the size of the baseline and the perimeter of the triangle is 121 cm, how many centimeters is each of the sides of the triangle? I have the sides at 50 cm and the base at 21cm. ?

What steps should we use to prevent the soil from eroding while we are letting the soil dry?

In an arithmetic progression, the 5th term is six times the 1st term and the sum of the first six terms is 99. Find the 1st term and the common difference. Attempt at solution: U5 = 6(U1) 99 = 3(2[U1] + 2d)

An arithmetic series has first term -50 and common difference 4. How many terms are in the series so that the sum of the series first exceeds 100?

Find the minimum number of terms in the geometric series 10 + 8 + 32/5 + ... such that the sum is greater than 49.

Why did many Texans become concerned after Abraham Lincoln was elected president? a.They were afraid Sam Houston would start a revolution b.They were afraid slavery would be abolished c.They were afraid taxes would increase. d.They were afraid the South w...

A sphere's radius expands from 1.0m to 1.1m. Using differentials, what is the change in the volume of the sphere (in m3)? The volume of a sphere is given by V=4/3∏r3.

An oil rig breaks and begins to leak oil into the arctic ocean at an increasing rate of R(t) = 20t + 20 litres per day. At the instant of breakage (t=0), 100 litres of oil was spilled into the ocean via the emergency release valve. What is the equation V(...

A 60-footpiece of wire is strung between the top of a tower and the ground, making a 30-60-90 triangle. How far from the center of the base of the tower is the wire attached to the ground? How high is the tower?

A 60-footpiece of wire is strung between the top of a tower and the ground, making a 30-60-90 triangle. How far from the center of the base of the tower is the wire attached to the ground?How high is the tower? (The center of the base would be the point w...

Which most accurately describe the impact of the Crusades on the Jewish community? Select all that apply. During the First Crusade, a Christian group passed through the Rhineland and massacred Jews. During the Fourth Crusade, Saladin entered the Crusades...

Apply the distributive property to factor out the greatest common factor. 56+32= Please respond to my question, that would mean alot to me. Thanks, Lucas

Standing on Eris, a dwarf planet of raidus of 1200km, drop a rock from height of 0.30m. The rock takes 0.87s to reach the surface. a) Calculate the value of g on Eris b) Calculate the mass of Eris c) Show the ratio of your altitude above any planet-to-the...

If it takes Polly the Painter 1 hour to paint a bedroom floor that is 9 feet wide and 12 feet long, how long will it take her to paint the living room floor, which is twice as wide and twice as long?

Which of the following elements has the smallest atomic radius? Group of answer choices chlorine sulfur bromine selenium

The sum of a number times 4 and 16 is less than or equal to 30

Do you think a lengthy introduction would be enough to provide persuasive argument? Explain.

The driver's side windshield wiper is 75 cm long and spans an angle of 130 degrees in one swipe of the windshield. determine the distance that the tip of the windshield wiper travels in one swipe from left to right across the windshield.

The profit P(x) (in millions of dollars) for a T-short manufacturer can be modeled by P(x) = -2x^3+9x^2-x, where x is the number of T-shirts produced (in millions). Currently, the company produces 4 million T-shirts and makes a profit of $12 million. What...

A fish swimming in a lake is modelled by the equation h(t) = 6cos (pi/7 t) where h(t) is the height of the fish above the lake's surface (in meters) at a given time t, in minutes. On the interval 1<=t<=11, when is the fish at the surface of the lake?

An urban renewal project involves reseeding a park that is in shape of a square, 60ft on each side. Each bag of grass seed costs $15.50 and will seed 1800 ft^2. How much money should be budgeted for buying grass seed for the park?

How do I solve this: 2Cu2O(solid) + Cu2S(solid) --> 6Cu(solid) + SO2(gas). 86g of copper 1 oxide reacts with 46g of copper 1 sulfide. Find mass of Copper made?

Three of four vertices are (15, 0), (5, 0) and (15, 9). The park is a rectangle. What are the coordinates of the parks fourth vertex?

A decorator buys 24 liters of paint. When he finishes painting there is 35% of the paint left. How much paint is left?

A parallelogram has half as many angles as a what?

Orde from LEAST to GREATEST: 4/50, 25%, 22/100, 0.3.

The Cop and the Anthem Which of the following describes the use of hyperbole in the story? 1. The comparison to Soapy to a bird. 2. Personification of the city streets. 3. Soapy's exaggerated attempts to get arrested. 3. The detailed description of the we...

Answers

The following answers were posted by visitors named Lucas.

After I do the math problem 0.13 * 17 do I turn it back too a percentage. I got the answer 2.21. What do I do next or that is the answer.

Describe the relationship between x and y. x: +5,+2,0,-3 y: 3,0,-2,-5

The equations are 2x+y=80 and 2x=y. "x" being the widthof the fence coming off the barn and "y" being the length connecting those two pieces. When one side is as big as nessasary (aka the barn, river, wall, etc.) the length is double the width. The perime...

N is over the sigma sign which is 5 and r is under the sigma sign which is =1.......

How long would it take the 4th snail to travel 1km?

How dd u fynd dem....lyk de steps

I'm not sure which Nullification you are speaking about, but in the Kentucky and Virginia Resolutions of 1798-1799 Thomas Jefferson and James Madison argued a state had the right to nullify a federal law. The Articles of Confederation, by creating a weak...

I think anger is the answer.

I think it's b. There wasn't that many miles of railroad track in 1820.

I think it's b.

1.65 - .50 is 1.15. If you have 11 dimes you'll get 1.10, then add a nickel to make it 1.15. So the twelve remaining coins are 11 dimes and a nickel.

The Constitution didn't have any protection for individuals. They wanted to put in a Bill of Rights that specifically spelled out rights and freedoms of the citizens.

550 GBP x 1.18 Euro = 649 Euro 649 - 629 = 20 Euro 1GBP x 20 Euro / 1.18 Euro = 16.94 Euro

46354 miles might be the answer. I didn't say that it's right.

Thank you so much:)))

Thank you so much, a) 25.1 cm^3 b) 6.28 cm ^2 c)144-75.36 =68.64 Is it correct? Thank you so much

Steve, thank you so much, you are amazing!!!!!

Thank you so much . a)Equation is x=-1vertical asympt. Is it correct please?

You are so so nice, thank you so much:)))))You saved my love!!!!

value of block is: 169,641 x0.03 $ / 12 = 0.42 $ 197.901 X 0.04 $/ 15 = 0.527736 $ 0.42 + 0.527736 = 0.947736 $ Petr could paint his entire block less than to $1.oo.

Hi Steve, thank you so much for everything:))) Have a very nice day

Dear Steve, thank you so much for your really so huge help. I only wanted to ask you and I'm sure I'm wrong about it but Both students start with $200 and both how much money will have after they have passed START 10 times. I did: I used formula : un =u1+...

1USD/xUSD = 0.753 EUR/ 610 EUR x= 810.09 USD 800 AUD/810.09AUD = 810.09 USD/1 USD x = 0.99 AUD Henry and Jack thank you so much for helping me but do you think my answer is correct? Thank you so much

Thank you for your advice, I appreciate it really a lot, but unfortunately I always checked me writing and exercise is exactly copied from the book Oxvord IB diploma programme Mathematical studies standard level chapter 4 page 183. Why I was very confused...

Which type of data is qualitative data? a.heights and meaters b. volume and milliliters c. calculations and density d. descriptions or behaviors

I'll bet you can't guess my favorite musical instruments challenged my friend. What is the correct punctuation?

Thank you so much:)) you saved my life!!!!

Real, rational, integers, and whole numbers

By the way, the soil is in a container.

Thanks for all your answers, I get it now

Ball on the left or right? Is there a picture associated with the question?

OS stands for operating system. Also, are you SURE you're in college? It doesn't seem like it at all, due to your spelling.

Thank you Ms. Sue.

I wonder why people hate Ms. Sue so much. She is not here to help you 11 year olds to cheat, she is helping YOU find answers, but not giving them to you herself, as this behavior is banned here.

Can I help ban people?

No, really. I catch people asking for questions to things like unit tests and other tests, heck, one of them ever said the STAAR test.

"the black blur." Really? This isn't a Sonic OC convention.

Give us a link to the picture or something, man.

"Thank you for helping us learn and possess skills we will need later in life"

I found it again. People are sending threats to kill you because "Ms Sue is a terrible person and should die because she won't help me." These kids believe that helping is cheating.

^ That's not the real Ms. Sue.

Exactly what they said. Oh, also, I'm not a "verified" tutor. Thanks for declining my 10 emails, Jiskha

Ban Ab. They've been supplying answers recently.

No, really. She can't help because she can't see the picture of the figure. We all can't.

Thanked Lun I was clueless you’re a life saver

whats the third answer

It's B A C... I just took the test

This was very helpful!!! I'm bookmarking this site.

BBAD is the answers

Answers are: 1. A 2. C 3. B 4. D 5. B

Kool-Aid man is right

Think about it, you don't a test with an "E", you fail with an "F".

If anyone needs help typing, just press ctrl+f and it will give you a type box on the right corner of your screen. So as your typing, you can look at the question and type at the same time.

Then you can copy and paste from there.

Even though Darla recommended the course, I decided not to take it.

So just B and C then?

Actually A, B, and C

I cant find it and read for 10 minutes

Thank you sooooo much Reiny!

I want head lmao

the answer is 27 weeks but doing it the way that Emily does it gets me to 26 weeks. I still dont understand

It's 2020 and still in use

3.9.1- test: SOLVING EQUATIONS UNIT TEST part 1 A A D B A B C A C B B C C D A B A A A C

False and imply

None! Hawks don't eat clovers, or at least that was the answer on my quiz lol.

What would be the equation for this?

Thanks Z money 6/6 100%

Saving u from f’s Is 100% right!

Crowwaffles is right for 2021

Thanks @Someone

I still dont get it. Can you explain the answer a bit more detailed?

you didnt make roblox, people always try to take credit these days,

Reply to healthy blah blah blah Answer 12

It's beginning.

I LIKE YA CUT G

No. Each time you toss the coin is independent of previous tosses. you still have 1/2 chance.

Thank you! It definitely would be a more interesting question!

I failed kindergarten :(((

i did it and it was wrong!

Anonymous bro you're not even remotely helping anyone here. You're just making fun of people.

What observation will be made if a piece of blue litmus paper is dropped in each of the following 1.Rain water 2.Lime juice 3.Distilled water

Relief flooded over here

Relief flooded over her

(I know this is a dead post, but) you mixed up your mass and velocity variables. the equation should look like this: Ma*Va = Mb*Vb. Va =(Mb*Vb)/Ma