11/12/18

math question please help!!!
Two drainpipes working together can drain a pool in 20 hours. Working​ alone, the smaller pipe would take 30 hours longer than the larger pipe to drain the pool. How long would it take the smaller... more
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11/12/18

How long a ladder must you have to reach the top of a 15-foot wall if the bottom of the ladder is placed 4 feet from the base of the wall? Round to the nearest tenth of a foot
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11/12/18

Arithmetic progression
8th term of an A.P is 0.Then prove that 38th term is thrice of 18th term.
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11/12/18

Proving eulers formulae question
F(x) = (x-x2) from x=- pi to x = pi We have to prove by euler's formulae .. Any one help
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11/12/18

in the equation 7n-12=16 n equals?
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11/12/18

What does x equal in 8x+3=19
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11/12/18

Statistics for coin flipping
My wife and I are having a statistics debate. We want to flip a coin to decide which of two activities we'll take, but first we want to flip a coin to determine which side counts for which option.... more
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11/12/18

Calculus cylindrical shells to find volume
Use the method of cylindrical shells to find the volume generated by rotating the region bounded by the given curves about the y-axis. y=x^3, y=0, x=1, x=2
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11/12/18

Please help me with this Trigonometry question. i appreciate it
Find all exact solutions on [0, 2π). (Enter your answers as a comma-separated list.) 2 tan2(t) = 3 sec(t)please help me understand this... I cant figure out how to even start this...thanks in advance more
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11/12/18

List all possible rational zeros given by the Rational Zeros Theorem (but don't check to see which actually are zeros). (Enter your answers as a comma-separated list.) R(x) = 2x5 + 7x3 + 5x2 − 6
List all possible rational zeros given by the Rational Zeros Theorem (but don't check to see which actually are zeros). (Enter your answers as a comma-separated list.)R(x) = 2x5 + 7x3 + 5x2 − 6
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11/11/18

A contractor needs to fence his backyard. The shape of his backyard is a square and it has an area of 36 square yards. How many yards of fencing does he need?
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11/11/18

Gabby spent $5.70 on six pens. At this rate how much would it cost her to buy four pens?
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11/11/18

problem solving and logic
Given some numbers and you can use any of these numbers twice.How many 2-digit numbers can be made with the numbers.a) 3 and 4b) 3,4 and 5c) 3,4,5 and 6
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11/11/18

Solve the approximate intervals on which the function is y= (3x)/(2e^x+e^-x)

Use graphing and analytical techniques to find the approximate intervals on which the function is:(a) Increasing(b) Decreasing (.c) concave up (d) concave down(e) local extreme values(f) inflection... more
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11/11/18

solving a distance, rate and time word problem

Two cyclists leave towns 208km apart at the same time and travel toward each other. One cyclist travels 4 /kmh faster than the other. If they meet in 4 hours, what is the rate of each cyclist?
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11/09/18

Question of limits IIT JAM
Let an=bn+1/bn, where b1=1 b2=1 bn+2 = bn+1 + bn , n belongs to... more
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11/08/18

Need Help With This Trig's Question
a. (tan(theta) +1)(cos(theta) +1)=0 b. tan^-1(tan(3pi/8))
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11/08/18

dosage calcualtion
For each kilogram of a​ person's weight, 80milligrams of a drug is to be given. What dosage should be given to an adult who weighs 230​pounds?
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11/08/18

Triangle combinations

Please help me understand how I get the answer to this problem. Please don’t answer all of them and just explain. I like figuring things out myself.Check all of the side length combinations that... more
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11/08/18

Help with Proofs

Is there a specific way or order I can follow when needing to write a proof? Here’s my problem: I don’t know where to start with them. For example, if I knew the answer to a proof, I understand why... more
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11/07/18

Mean Value Theorem and/or Rolle's Theorem
Prove that the absolute value of cos(a)-cos(b) is less than or equal to the absolute value of a-b for all a and b
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11/07/18

how do I use the substitution method with this word problem?
how do I solve, "there is a group of 8 kids that each want a snack from Steak n' Shake. Fries cost $2 each and onion rings cost $3 each, and the kids spend a total of $18, how many of each did they... more
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11/07/18

Find the remaining zeros of f
Degree:6zero: 31+i, -4+i, 0
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11/07/18

An angle measures 10° more than its supplement is
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11/07/18

Find all solutions of the equation in the interval [0,2pi) The equation is 2cos(theta)+sqr root of 2 =0
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