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Questions (822)
A group of students who are selecting 2 of their group at random to give a report, but assume that there are 5 males and 3
0 answers
630 views
Assume that you select 2 coins at random from 5 coins: 3 dimes and 2 quarters.
What is the probability that all of the coins
1 answer
1,430 views
A 1.7 cm thick bar of soap is floating in water, with 1.1 cm of the bar underwater. Bath oil with a density of 890.0 kg/m3 is
0 answers
570 views
A 1.7 cm thick bar of soap is floating in water, with 1.1 cm of the bar underwater. Bath oil with a density of 890.0 kg/m3 is
0 answers
520 views
45 1/5 x 3/4 =
1 answer
242 views
A ball is thrown upward from the top of a 50.0 m tall building. The ball's initial speed is 12.0 m/s. At the same instant, a
1 answer
895 views
Joe and Bob manufacture bikes. Joe can make 12 bikes in 8 hours while Bob can make 12 bikes in 6 hours. Working together how
1 answer
450 views
Joe and Bob manufacture bikes. Joe can make 12 bikes in 8 hours while Bob can make 6 bikes in 12 hours. Working together how
1 answer
442 views
A soccer player kicks the ball toward a goal that is 27.8 m in front of him. The ball leaves his foot at a speed of 18.5 m/s and
1 answer
567 views
Can somone please explain how to do this problem:
How many cubic centimeters of olive oil have the same mass as 1.00L of
2 answers
840 views
how many grams of sodium are used to prepare 50 boxes of crackers? sodium per serving is 140mg, serving size is .50 oz for 6
3 answers
3,082 views
Farmer John is building a pen to keep his pig in. John has 40m of fencing. He will only need to make 3 sides to the pen because
1 answer
727 views
Adam has a hockey rink in his backyard. The current dimensions are 10m by 20m. Adam wants to have a hockey tournament and needs
3 answers
499 views
A rocket is fired at a speed of 75.0 m/s from ground level, at an angle of 59.7° above the horizontal. The rocket is fired
1 answer
1,373 views
What mass of sodium bromide (NaBr) is required to make 250 cm3 of a 0.35 mol.dm-3 solution?
2 answers
595 views
320g of sulfur dioxide react with 32.0g of oxygen and excess water to form sulfuric acid (H2SO4)
a. What is the limiting reagent?
1 answer
959 views
Ethane (C2H6) reacts with oxygen to produce carbon dioxide and water. Assuming there is an excess of oxygen, calculate the mass
2 answers
2,260 views
Scores on a certain nationwide college entrance examination follow a normal distribution with a mean of 400 and a standard
1 answer
825 views
A roof rises 1.7 feet vertically and 13.3 feet horizontally. What is the grade of the roof in percentage
0 answers
412 views
In 35.0 s, a pump delivers 0.574 m3 of oil into barrels on a platform 25.5 m above the intake pipe. The oil's density is 0.820
0 answers
978 views
A rectangle garden is 30 ft by 40 ft. Part of the garden is removed in order to install a walkway of uniform width around it.
6 answers
1,535 views
Divide: (20b^(3)+17b^(2)+18b+43)÷(4b+5)
3 answers
505 views
3y-24/14 divided by y-8/4y
2 answers
429 views
Solve for x. 4x(x-1)-5x(x)=3
2 answers
358 views
-4^2+44x-160=0
If you graphed the above equation, would the graph open up or down? How can you tell without graphing it?
3 answers
501 views
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum
1 answer
791 views
The length of a rectangle is twice the width. The area is 578 yd.^2. Find the length and width.
1 answer
2,387 views
In the community you live, you have been asked to serve on the planning committee for the Fourth of July festival. Your
2 answers
584 views
Suppose the heights of women aged 20 to 29 follow approximately the N(66.7, 2.4) distribution. Also suppose men the same age
1 answer
940 views
During the first part of a trip a canoeist travels 49 miles at a certain speed. The canoeist travels 25 miles on the second part
1 answer
423 views
The flower garden has the shape of a right triangle. 5ft of a perennial border forms the hypotenuse of the triangle, and one leg
2 answers
1,858 views
During the first part of a trip a canoeist travels 49 miles at a certain speed. The canoeist travels 25 miles on the second part
2 answers
906 views
You deposit $1000 in an account that pays 8% interest compounded semiannually. After 2 years, the interest rate is increased to
1 answer
1,817 views
Is this radical expression true or false? 28 minus 4th root of 2 equals 24th root of 2
5 answers
510 views
Can a radical be negative when the index is even?
2 answers
485 views
Solve. .25(250)+250/250
1 answer
421 views
If 250 specialty coffee drinks were sold at the bake sale, what would the average cost per drink be given the equation
2 answers
443 views
The average cost per drink can be found by dividing the total cost (.25x+250=total cost) by the number of drinks sold (x). Write
1 answer
475 views
Add. Simplify if possible. 3/v+8/v^2
1 answer
368 views
Add. Simplify if possible. 4/vy^2+9/yv^2
0 answers
284 views
Find all the numbers for which the rational expression is undefined: -24/25v
1 answer
456 views
Add. Simplify if possible. 4/vy^2+9/yv^2
2 answers
512 views
Find all numbers for which the rational expression is undefined:
-24/25v
0 answers
439 views
4/vy^2+9/v^2y
0 answers
193 views
x/x+3-3/x-3=x^2+9/x^2-9
1 answer
259 views
The officejet printer can copy Lisa's dissertation in 22 min. The laserjet printer can copy the same document in 18 min. If the
1 answer
1,338 views
Maria bicycles 4km/h faster than Javier. In the same time that it takes Javier to bike 60km, Maria bikes 72km. How fast does
1 answer
535 views
A group of parents is going to sell specialty coffee drinks including espresso, lattes, cappuccinos and mochas. It cost $250 to
1 answer
1,242 views
okay one more to be sure I got it.
May Beth and ____ help with the decorations? She can go here because it is the subject and I
1 answer
417 views
It is confusing me when it is at the end of the sentence...
Amelia Earhart also flew nonstop across the Atlantic; the first woman
1 answer
507 views
What word is the correct one and why?
When Samuel P. Langley built a steam-powered airplane, both the pilot and (he, him) were
2 answers
395 views
Which word fits better and why?
You and (me, I) have heard the Greek myth about lcarus.
1 answer
532 views
A pelican flying along a horizontal path drops
a fish from a height of 4.7 m. The fish travels 8.5 m horizontally before it hits
0 answers
528 views
A shell is fired from a gun with a muzzle velocity of 466m/s at an angle of 57.4 degrees with the horizontal. At the top of the
0 answers
960 views
Find dy/dx by implicit differentation.
ysin(x^2)=-xsin(y^2)
2 answers
943 views
What are some froms of medium in popular culture?
3 answers
884 views
what are some research topics about popular culture
4 answers
459 views
find f'(a) for f(x)=1/sqrt(13-7x)
i got my answer to be 7 / (7(13-7x)sqrt(13-7x)) but it says i am wrong please help
1 answer
362 views
find f'(a) for f(x)=1/sqrt(13-7x)
i got my answer to be 7 / (7(13-7x)sqrt(13-7x)) but it says i am wrong please help
0 answers
319 views
An electron travels 3.75 m in 6.41 × 10−8 s.
How fast does it travel? Answer in units of cm/s
1 answer
921 views
What are some interesting topic regarding Pop Culture.
Any ideas for my research paper.
1 answer
607 views
Melvin estimated 645 + 322 by adding 600 + 300. Is his estimated sum an over or under estimate?
Ty
3 answers
294 views
Melvin estimate 645 + 322 by adding 600 + 300. Is his estimate sum an over or under estimate please?
Ty
1 answer
611 views
Is this a run on or complete sentence?
The desert is very hot during the day, the temperature in the desert may drop below
1 answer
1,039 views
Justin had $49 before spending n dollars on Jeans. How much money remains? Translate to an algebraic expression
2 answers
601 views
sif xyz=0 (-3x^2yz)^3 p=27x^7y^4z^6 then p=?
1 answer
660 views
integral of (1-(sinx)^2))/(cosx)dx
i don't know what to make my "u" for u-substitution
2 answers
323 views
find an expression for the area under the graph of f(x)= (x^2)+x from x=2 to x=5 as a limit of a riemann sum (do not need to
1 answer
762 views
Could you please help me re write the sentences below.
Media convergence is the merging of mass communications outlets such as
2 answers
1,255 views
Could you please help me re word my paragrah? It needs to be at least 100 words.
Media convergence is the merging of mass
4 answers
881 views
Could you please help me re word my paragrah? It needs to be at least 100 words.
Media convergence is the merging of mass
1 answer
746 views
Could you please help me re word my paragrah? It needs to be at least 100 words.
Media convergence is the merging of mass
1 answer
742 views
I did not understand this part of my class so here is the question
What is media convergence? Provide an example of media
0 answers
1,061 views
Could you please help me re word this paragraph. I need it to be at least 100 words, but this one that I did was not good
1 answer
614 views
COuld you please help me re word this sentence-
Social media sites have affected commerce because people can advertise to
5 answers
672 views
How do you simplify 4w(9)?
would it be 36w?
1 answer
916 views
An extreme skier, starting from rest, coasts down a mountain slope that makes an angle 25.0° with the horizontal. The
1 answer
1,055 views
What volume of liquid water is produced from the combustion of 10.00 L of octane, C8H18? (density of octane=0.692 g/mL
0 answers
483 views
Is there a way to submit an essay for review without someone being able to copy it??
2 answers
389 views
IQ is normally distributed with a mean of 100 and a standard deviation of 15. Suppose one individual is randomly chosen. Let X =
1 answer
1,629 views
What do you think is the most significant thing to learn about the differences between social, political and economic systems in
3 answers
1,044 views
A 20 ounce bag of popcorn costs $2.80 at the movie theater, if the unit price remains the same, how much would a 35 ounce bag
4 answers
911 views
Employees in a large computer firm claim that the mean salary of the firm’s programmers is less than that of its competitors.
1 answer
561 views
given that a/b=c/d, decide whether it is true or not that a/c=b/d.
1 answer
543 views
How many grams of BaCO3 will dissolve in 3.0 L of water containing a Ba+2 concentration of 0.5 M (Ksp= 5.1E-9)
My work: BaCO3 <->
2 answers
705 views
Two students are on a balcony 19.6 m above the street. One student throws a ball (ball 1) vertically downward at 15.8 m/s; at
2 answers
2,765 views
Calculate the pH of the 0.20 M NH3/0.20 M NH4Cl buffer. What is the pH of the buffer after the addition of 10.0 mL of 0.10 M HCl
3 answers
1,099 views
A pond 100 ft in diameter is surrounded by a circular grass walk 2 feet wide. Find the are of the walk. Answer in terms of π.
Pl
1 answer
1,292 views
Which of the following layers of the atmosphere is closest to the ground?
1 answer
381 views
Atmosphere Homework!
1.Which of the following layers of the atmosphere is closest to space? 2.A barometer measures? 3. The
3 answers
1,871 views
Jordan spent $6.37 on a book and $1.23 on a magazine. How much did he spend all together? First estimate the costs and the
1 answer
299 views
I am having some help with this assignment. I have filled it in with what I think is correct but am not positive with my
1 answer
675 views
How do you find one fourth or two thirds?
1 answer
1,008 views
Write a story using the words alcove, bigoted, clandestinely, corrugated, futile, inexorably, plausible, ramification, sanguine,
1 answer
424 views
In one trial of an investigation 50.0 mL of HCl(aq) of an unknown concentration is Tiresias with 0.10M NaOH (aq). During the
1 answer
1,688 views
The Exotic Pets Club has 23 members, all of whom have a snake, an iguana, or a tarantual. Four members have all three kinds of
3 answers
681 views
Write the overall ionic equation and the net ionic equation for the reaction between BaCl2 and Na2SO4 in aqueous solution,
1 answer
666 views
Write the equation for the dissolution of (NH4)2S04 in water. How many moles of each type of ion, and how many total moles of
2 answers
3,799 views
Let R be the plane region bounded by x=1, x=5, the x-axis and y=1/x. Approximate the are of R using 8 right rectangles.
0 answers
343 views
What is the exact value of sin^-1(sin(8pi/15)?
1 answer
1,105 views
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