Questions Asked on
August 13, 2017

science
2Zn+O2=2ZnO. What type of chemical reaction is it
asked by Himanshu 
English
Speech about mythical character/legendary hero nd rreasons why i fear or admire him or her
asked by mapaseka 
probability
David has two boxes containing shapes. In box A there are 4 stars and 2 hearts. In box B there are 2 stars and 1 heart. David takes, at random, a shape from box A and puts it into box B.He then takes a shape from box B.
asked by Anonymous 
Biology
Characteristics that biologists use to classify organisms are a. convergent evolution, cladogram, reproductive isolation. b. reproductive isolation, evolutionary history, shared derived characteristics. c. binomial nomenclature, shared derived
asked by ~ 
PHYSICS
A boy tosses a coin upward with a velocity of 20m/s What will be the maximum height? Time of flight? Velocity as it returns to the hand? Velocity as it hits the ground?
asked by Valor 
math
a sprinter runs 100 meters in 11.5 seconds.What is the runners average running rate in meters per second?Round to the nearest tenth.
asked by Jigsaw 
Physics
Help with this please. No idea. Except for a 22.00 min. rest stop, Emily drives with a constant velocity of 89.5 km/hr north. How long does the trip take if Emily's average velocity is 77.8 km/hr north?
asked by Rebecca 
Maths age problems
Tom is 6 years older than James. In 5 years time their combined ages willbe36.how old are they now?
asked by Michelle 
Math
Rachel and Rena are sharing a bag of jellybeans. Rachel ate 1/5 of the jellybeans. Rena ate 1/6 of the jellybeans left. Rachel then ate 2/5 of the remaining beans. Rena then ate 2/3 of the ones left. Rachel then ate half which left them two yellow
asked by Lily 
Precalculus 11
(6a^215a)/(6a15a^2) (3a(2a5))/(3a(25a)) Multiply top & bottom by 1 (52a)/(5a2) is that correct? I have an answer here that's (2a5)/(5a2) but I don't understand how to get there... Thanks :)
asked by Kayla 
science
a stone is thrown vertically upward,went up 98m and came down.How long was it in air?
asked by lekshmi 
Phase Transformation
Which of the following phase diagram shows liquid immiscibility ? Eutectic Peritectic Monotectic Eutectoid None of these
asked by Nick 
Precalculus 11
When subtracting 1 rational expression from another, when I'm multiplying the top & bottom of the first term by the denominator in the second term is that number automatically negative because the whole term is being subtracted? ex: (8a3b)/7a  (2a+5b)/4b
asked by Kayla 
Precalculus 11
If when simplifying 2 rational expressions you got: (2(x3))/2x would you multiply the top & bottom by 1? Thanks!! :)♡
asked by Kayla 
ALGEBRA
A rectangular room is 1.2 times as long as it is wide, and its perimeter is 25 meters. Find the dimension of the room rounded to the nearest tenth. The length is: The Width is:
asked by ryan 
science
Why is filter paper a poor material on which to powder a solid before introducing it into a melting tube?
asked by tonny 
Math
Is the square of a rational number always greater than the number ?
asked by Ana 
Math
I think of a number, subtract 23 and then divide by 8. The answer is 6. What was my starting number?
asked by Odette 
Focus on the Caregiver
Which one of the following recording methods would you most likely use to keep track of times and details about the daily routine? A. Daily log B. Running record C. Anecdotal record D. Individual journal my answer is a.
asked by Priscila 
math
It takes Natasha 20 min to drive to work in the morning. She drives home using the same route, but it takes 11 min longer, and she averages 6 mi/h less than in the morning. How far does Natasha drive to work?
asked by Anonymous 
Phase Transformation
Change in Gibbs free energy is _____ related to interfacial energy and _____ related to radius of precipitate. directly, inversely inversely, directly directly, directly inversely, inversely
asked by Nick 
Phase Transformation
Concentration vs Distance plots resemble _____________ . Lognormal distribution Binomial distribution Lorentzian distribution Gaussian distribution
asked by Nick 
Help scott biostats
The value of mammography as a screening test for breast cancer has been controversial, particularly among young women. A study was recently performed looking at the rate of false positives for repeated screening mammograms among approximately 10,000 women
asked by maria 
7th Grade Math
The weight of an object on the moon varies directly as the weight of the object on Earth.A 90pound object on Earth weights 15 pounds on the moon.if an object weights 156 pounds on Earth, how much does it weights on the moon? A.23 pounds B.26 pounds C.28
asked by I dont get this :/ 
Math
2hxh/4h²
asked by Ayesha 
Math
Jack sold a black jacket for $150 and took 25% profit. At the same time Jack sold a red jacket for $150 and took a 25% lost. A. He lost $20 B. He lost $25 C. He lost $30 D. He gained $20 E. He gained $30
asked by Cindy 
Math
Remainder theorem  4x×x×x_12×x×x+11×x_5
asked by Anonymous 
micro economics
Assume shortrun demand and supply curves for dry cleaning have the usual slopes, and each unit produced requires some amount of labour and exactly 1 unit of drycleaning fluid. What will be the shortrun result of a decrease in the cost of drycleaning
asked by bella 
Math
I have a question. Is it possible to calculate the length of a road between two towns. If we know when two vehicles travelling back and forth between the towns pass each other ? Also one vehicle is faster than the other one. Just need a hint or idea how to
asked by Jenny