Search found 90 matches
If x < 0, then sqrt (-x |x|) is a. -x b. -1 c. 1 d. x e. sqrt x OA is A . Can someone please explain how to get the answer? [spoiler]My logic was the following: x = -1. Thus -(-1) = 1, and the absolute value of -1 is 1. So the sqrt (1) is 1, thus x, OA D. FUrthermore, how can it be - isn't the squar...
Thanks a lot Bluementor.
Can I just ask how long it took you to get the OA? Is there anything you did to streamline your process (took me a long time to do this)?
I just came across this question, and got the right OA. However reading the explanation above (Cramya's in particular) I am a little confused. If n = 3, then its factors are 1 and 3 (thus it has 2 factors). So 2n = 6, and its factors are 1,3 and 2. But this does not mean that 2n is "divisible by twi...
If x, y and z are integers and xy + z is an odd integer, is x an even integer?
1. xy + xz is an even integer
2. y + xz is an odd integer
Could someone please explain how to get to the answer as quickly as possible?
Thank you very much for your valuable feedback - 710 seems just about feasible!
ksh,Combined Work done by A + B + C as per given data
Your equation is slightly mistaken. It should be
2A + 2B + 2C = 2
2(A + B + C) =2
thus A + B + C = 1
Dear Stacy, I would be interested in doing an MBA at schools such as Insead and Columbia for example. I have a GPA of 3.2 from Imperial College London (3rd top University in UK at the time) in Biology. After university I changed direction to work in business (I was no longer interested in continuing...
If x and y are integers and 2x–y= 11, then 4x+ y cannot be:
OA is D . CAn someone please explain how to solve this quickly?
Kate: The recent decline in numbers of the Tennessee warbler, a North American songbird that migrates each fall to coffee plantations in South America, is due to the elimination of dense tree cover that formerly was a feature of most South American coffee plantations. Scott: The population of the sp...
Hi, I'm trying to brush up on my "concentration/ mixture" type questions and have come across a problem which I can not solve. It relates to two similar questions: 1. One gallon of soft drink is made of 40% orange juice and 60% water, how many additional gallons of orange juice must be mixed in to m...
Thank you very much for your responses - but just to be sure, I have attached a screenshot of the original question (and will assume it was a typing error).
The volume of a sphere with radius r is (4/3)πr^3 and the surface area is 4πr^3. If a spherical balloon has a volume of 972π cubic centimeters, what is the surface area of the balloon in square centimeters? (A) 324 (B) 729 (C) 243π (D) 324π (E) 729π (π = pi) OA is ...
I just came across this question and the OA has left me slightly perturbed. When I conceive a “calculation” I can not always associate an absolute certainty that it will happen (as yogikarma correctly says). In this example the word “will” would imply an absolute certainty about the calculation's pr...