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Oil spilled from a ruptured tanker spreads in a circle whose area increases at a constant rate of 7.5 mi^2/hr. How rapidly is
1. 2 answers
2. 4,628 views
Students in Mrs. Doyles classes use 3/4 of a bottle of hand sanitizer every week. Which expression can be used to find how many
1. 8 answers
2. 1,407 views
US History Crossword Puzzle1. 9 letters; areas of Mississippi and Alabama characterized by black soil and excellent
1. 2 answers
2. 1,054 views
Use the initial condition y(0)=4 and step size h=.25, calculate the backward Euler on [0,1] for the ODE y'=10y-10y^2. Solve the
1. 0 answers
2. 459 views
How much more would there be at the end of 8 years if $4000 were invested at 14% compounded quarterly rather than semiannually?
1. 1 answer
2. 447 views
For questions 1, 2 identify each sentence as arithmetic, geometric both or neither.1) 7, 9, 11, 13 ...... A) arithmetic B)
1. 43 answers
2. 6,448 views
A jar contains 3 nickels and 2 dimes. You reach in and randomly select 2 coins. Let x represent the value of the two coins in
1. 2 answers
2. 2,046 views
When dropped on a hard surface, a rubber ball takes a series of bounces, each one about 4/5 as high as the preceding one. If the
1. 2 answers
2. 1,478 views
A 7.5 kg box is on a table. What is the normal force acting on the box in each of the following situations?a) You leave the box
1. 0 answers
2. 533 views
A worker pushes horizontally on a 25 kg crate resting on ground level. The coefficients of static and kinetic friction are 0.4
1. 0 answers
2. 627 views
Casey sights the top of an 84 foot tall lighthouse at an angle of elevation of 58 degrees. If casey is 6 feet tall, how far is
1. 0 answers
2. 970 views
What will happen when I put in minty mentos into all different kinds of soda?
1. 0 answers
2. 496 views
I have a lab finished and I have to find the dehydrated sample (show calculations) and the value of n (show calculations). I
1. 1 answer
2. 569 views
Epsom salts is magnesium sulfate heptahydrate. If a student takes 2.50 g of Epsom salts and heats it to drive off the water, how
1. 1 answer
2. 777 views
An 17.2 kg box is released on a 35.7° incline and accelerates down the incline at 0.274 m/s2. Find the friction force impeding
1. 0 answers
2. 457 views
A box is given a push so that it slides across the floor. How far will it go, given that the coefficient of kinetic friction is
1. 0 answers
2. 488 views
If the coefficient of kinetic friction between a 32.7 kg crate and the floor is 0.295, what horizontal force is required to move
1. 0 answers
2. 546 views
Find the distance between P1(3, –195°) and P2(–4, –94°) on the polar plane. Round your answer to the nearest thousandth.
1. 1 answer
2. 444 views
What is the central theme of the “As Cheap as Coal” portion in Section 8.1 of your text? (Points : 1)
1. 1 answer
2. 480 views
Needing help setting these problems up...not necesarily giving me the answers. thanks.In January 2009 the state of Nevada was
1. 3 answers
2. 2,001 views
An outdoor supply store has its regularly priced $160 jackets on sale for $120. What is the discount rate?120/160*100=75% but
1. 3 answers
2. 582 views
Alexander Smith receives a salary of $250 per week plus a commission of 15% on all sales over $1500. Find his earnings during a
1. 1 answer
2. 533 views
Can you look over my french paragraph and make sure it's grammatically correct? Thank you in advance!Mon manoir est grand. Le
1. 6 answers
2. 629 views
ABC= (5x+40) and BDC=ax what is the value of x
1. 1 answer
2. 385 views
While spinning in a centrifuge, a 70.0 kg astronaut experiences an acceleration of 5.00 g, or five times the acceleration due to
1. 1 answer
2. 1,452 views
prove f(x)=b^x is continuous on (-infinity,infinity) i.s at all a exist in reals. here assume b does not equal 1, but b>0
1. 0 answers
2. 403 views
The youngest person in the company is 21. The oldest is 66.A: What is the range? B: Is the range a good measure of spread for
1. 4 answers
2. 1,747 views
Find the mean and the median in the following arithmetic sequences:A: 1, 3, 5, 7, 9 B: 1, 3, 5, 7, 9, . . . ., 199 C: 7, 10, 13,
1. 1 answer
2. 753 views
Identify the premise/s and the conclusion and label them. Complete the argument if necessary.1.My bowl fell off of the counter
1. 1 answer
2. 611 views
At the American Kennel Club, there are 36 dogs entered in a show where there will be a first-, second-, and third- place award.
1. 1 answer
2. 953 views
Find the number of ways to arrange the letters in the following words:A: Ohio B: Alabama C: Illinois D: Mississippi E: Tennessee
1. 3 answers
2. 2,321 views
Suppose a dot is placed at random in a 10 x 10 graph grid in which squares have been numbered from 1 to 100 with no number
1. 1 answer
2. 789 views
An estimate of the frog population in a certain pond was found by catching 30 frogs, marking them, and returning them to the
1. 1 answer
2. 1,172 views
Complete the sign for each equation65/60 - 1 this is what the paper has on it now i think that you are supposed to put a + - *
1. 1 answer
2. 340 views
A teacher instructed her class to take any number and perform a series of computations using that number. The teacher was able
1. 2 answers
2. 881 views
If {x_n} is not bounded above, does x_n -> infinity? prove there exist a subsequence {x_n} where k=1 to infinity such that x_n_k
1. 0 answers
2. 443 views
I am not sure how to start this. You are given a 200% solution of a compound. You must dilute and construct a calibration curve
1. 2 answers
2. 581 views
Beryllium flouride's formula is BeF2. Why do beryllium and flourine combine in a 1:2 ratio?
1. 1 answer
2. 687 views
Limit as n goes to infinity of ((2n)!/(n^n)).
1. 1 answer
2. 316 views
Find the work done byF(x,y,z)=(x^2y)i=(x-z)j+(xyz)k where c=(t)i+(t^2)j+(2)k, 0<t<1. The answer is supposed to be -17/15, but i
1. 0 answers
2. 438 views
The medical records of infants delivered at Kaiser Memorial Hospital show that the infants' lengths at birth (in inches) are
1. 1 answer
2. 1,560 views
A 5.00 kg block of ice at –25 oC is converted to steam at 125 oC. How much energy (in kilojoules) is expended in this process?
1. 3 answers
2. 1,364 views
Lead is a soft, dense metal with a specific heat of 0.117 J/goC, a melting point of 328.0 oC, and a heat of fusion of 23012 J/g.
1. 1 answer
2. 628 views
Prove using formal definition of limit:Lim 2^(1/n)=1 n->ininity
1. 1 answer
2. 597 views
I am trying to write a matrix where n=100, and the matrix's first and last number is 2 and all the number in the middle are 1.
1. 0 answers
2. 354 views
Plants need carbon dioxide to produce energy. How many carbon are there in 10.0 g of carbon dioxide?this is what I have so far.
1. 1 answer
2. 624 views
_________ was the first to show that all objects fall toward Earth with constant ____________.
1. 0 answers
2. 393 views
Let {x_n} and {y_n} be real valued sequences suppose x_n->0 and {y_n} is bounded. Prove that (x_n*y_n)->0
1. 0 answers
2. 442 views
Use linear approximation, i.e. the tangent line, to approximate \sqrt[3] { 7.9 } as follows:The equation of the tangent line to
1. 1 answer
2. 1,009 views
How would the empirical formula of copper (II) sulfate be affected if some of the sample sticks to the stirring rod?
1. 1 answer
2. 475 views
If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12?1st Die
1. 0 answers
2. 482 views
If the first dice yields an even number, what is the probability that the sum of the two dices will be equal to 12?1st Die
1. 0 answers
2. 531 views
Find the center of mass in the 1st quadrant of the circle x^2+y^2=4 where rho(x,y)=k(x^2+y^2)Thanks.
1. 0 answers
2. 476 views
Marcus Has 5 sticks, He gave away 0.75 of each stick away. How Many Did He He Give Away
1. 1 answer
2. 428 views
Let {X_n} be a sequence of real numbers that is bounded above by M and such that X_n-->x Prove that x<=M.This is what I have,
1. 0 answers
2. 488 views
Let {X_n} be a sequence of real numbers that is bounded above by M and such that X_n-->x Prove that x<=M
1. 0 answers
2. 453 views
I'm having a bit of trouble with this problem.A ball is thrown upwards and stays in the air for 3.65 seconds. What is the
1. 2 answers
2. 562 views
I'm having a bit of trouble with this problem.A ball is thrown upwards and stays in the air for 3.65 seconds. What is the
1. 0 answers
2. 486 views
I'm having some trouble figuring out how to do the following question:A ball punted vertically has a hang time of 3.65 seconds.
1. 2 answers
2. 552 views
Yolo has two pieces of string. One is 32 inches long, and the other is 48 inches long. She wants to make as many necklaces as
1. 4 answers
2. 563 views
There are 54 graders who play sports. Twenty-seven play baseball. The rest play soccer. Second grade has 37 soccer players. How
1. 1 answer
2. 610 views
You own shares of Fidelity Magellan Fund (FMF), which concentrates on stocks of large American companies. Its monthly return is
1. 0 answers
2. 439 views
In a sophisticated medicine research center, two scales are used for repeated weighing of the same item. If the true weight of a
1. 0 answers
2. 767 views
An airplane flys at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will
1. 1 answer
2. 697 views
Using Descartes' Rule of Signs how can you determine the number of positive and negative zeros (roots) a polynomial may have?
1. 2 answers
2. 629 views
Whose sin is blacker- Chillingworth's or Dimmesdale's? Why? (The Scarlet Letter)
1. 2 answers
2. 501 views
If f(x)=-4x^3 +5x^2 +8 and c=-2 is c a factor of x?(Use the Factor Theorem)
1. 3 answers
2. 378 views
0<=b_n<=a_n.a) if a_n-->0 then b_n-->0. b) if a_n-->infinity then b_n-->infinity I don't know where to start.
1. 1 answer
2. 390 views
Find a number such that the sum of two times the number and six times its reciprocal is 79/5.
1. 1 answer
2. 616 views
Although the New England, and the Chesapeake region were both settled largely by people of english orgin, by 1700 the regions
1. 6 answers
2. 663 views
Should geographers regard culture and social customs as generalizations about a group of people, or should they say it comes
1. 1 answer
2. 599 views
HI. For one of my classes i need to invent/innovate a product. So it is a year long project and if anyone has anyone sort of
1. 1 answer
2. 388 views
Find the parabolically terminated cubic spline through the data ppoints (0,1),(1,1)(2,1)(3,1),(4,1). Is this spline also
1. 0 answers
2. 502 views
A swimmer, capable of swimming at a speed of 1.44 m/s in still water (i.e., the swimmer can swim with a speed of 1.44 m/s
1. 1 answer
2. 3,003 views
A radar antenna is tracking a satellite orbiting the earth. At a certain time, the radar screen shows the satellite to be 118 km
1. 0 answers
2. 712 views
If G is a group with exactly 66 elements of order 14, how many subgroups of order 14 does G have?
1. 0 answers
2. 440 views
A scientist wants to make a solution of tribasic sodium phosphate, Na3PO4, for a laboratory experiment. How many grams of Na3PO4
1. 4 answers
2. 2,907 views
d(x,y)={ 1 if x does not equal y0 if x=y Prove that d satisfies the axioms of a metric. clearly it satisfies d(x,y) existing in
1. 0 answers
2. 490 views
On the real line, define d (x, y ) = sqrt(abs(x − y)) . Prove that d satisfies the axioms of ametric.
1. 0 answers
2. 419 views
What is the domain and range of ln(4-x-y)
1. 4 answers
2. 507 views
A relativistic proton has a momentum of 1.0×10^-17 kg ∙ m/s and a rest energy of 0.15 nJ. What is the kinetic energy ofthis
1. 0 answers
2. 808 views
1. A cannon mounted on the back of a ship fires a 50.0 kg cannonball in the horizontal direction at a speed of 150 m/s. If the
1. 1 answer
2. 1,518 views
Write an equation relating the number of questions I get right on a test to the total score I will get if the test has 20
1. 2 answers
2. 571 views
Let a,b exist in the reals with a<b.(i) for the open interval E=(a,b), prove that infE=a and supE=b. (ii) for the closed
1. 2 answers
2. 502 views
Prove:Let a,b exist in the reals with a<b, (i) For the open interval E=(a,b) prove that the inf E=a and sup E=b (ii) for the
1. 0 answers
2. 638 views
Find a rational number and an irrational number between x=8.9949926 and y=8.995
1. 1 answer
2. 436 views
The typical person needs a 2000 calorie diet to sustain “normal” activity. Nowadays, a lot of the energy in American diet
1. 1 answer
2. 894 views
Consider the equation 8x^4 − 12x^3 + 6x^2 − x = 0. For each of the two solutions x = 0 and x = 1/2, decide whether the
1. 0 answers
2. 774 views
Let S be a non-empty subset of the real numbers that is bounded below. Define −Sby −S = {− x | x ∈S }. Prove: (i) −S
1. 0 answers
2. 581 views
Determine the exact values of the six trigonometric functions of the angle.(-5,-2)
1. 1 answer
2. 753 views
Prove: let alpha be a lower bound of a subset E of an ordered set S. If alpha exist in E, then alpha= infE(greatest lower bound
1. 0 answers
2. 457 views
Prove that square root of 12 is irrational.**I don't know if I did this correctly PF: By contrapositive, assume sqrt(12) is
1. 3 answers
2. 2,562 views
If c is rational, c does not = 0, and x is irrational, then cx and c+x are irrational.
1. 2 answers
2. 430 views
use a graph, or guess and then confirm a bracket, or tabulate f(x) on a wide interval to figure the bracket of length one. to
1. 1 answer
2. 482 views
Let x and y be real numbers. Then x=y if and only if abs(x-y)< epsilon for every epsilon>0
1. 14 answers
2. 1,518 views
Prove that for all integers n > or = 1 and all real numbers x subscript 1, x subscript 2,...., x subscript n. absolute value of
1. 1 answer
2. 629 views
I am a number less than 40. One of my factors is 3. The sum of my digits is 12. What number am I?
1. 3 answers
2. 516 views
Determine the minimum gauge pressure needed in the water pipe leading into a building if water is to come out of a faucet on the
1. 1 answer
2. 804 views
What is the difference in blood pressure (mm−Hg) between the top of the head and bottom of the feet of a 1.88m tall person
1. 3 answers
2. 724 views
At the beginning of the summer molly decided to add a little money into her sayings account every week. After seven weeks her
1. 9 answers
2. 659 views

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