Thursday
July 31, 2014

Posts by axel


Total # Posts: 24

Math
The water level (y) in a tank oscillates between 4 feet and 10 feet. It takes 20 seconds for the water level to go from 4 feet to 10 feet and seconds to go from 10 feet to 4 feet. At time(t)=0 seconds, the water level (y) is 10 feet. 1. Write the equation for the depth in the ...

Chemistry
What is the chemical reaction between these chemicals? NH4Cl + Na2SO3 NH4Cl + NaOH Na2SO3 + BaCl2 Na2SO3 + NaOH H2SO4 + BaCl2 BaCl2 + NaOH

Math
Find the sum of the absolute values of all integral values of X that make the following expression prime: (x^2-5x)^2 - 34

Math
Consider the regression through the origin model y = bx Assume that there are n pairs of observations of the response and the explanatory variables, and that these observations are indexed by i. Derive the least-squares estimator for the slope parameter b in this model.

Math
Consider the regression through the origin model y = bx Assume that there are n pairs of observations of the response and the explanatory variables, and that these observations are indexed by i. Derive the least-squares estimator for the slope parameter b in this model.

Science - biology - university
A couple where both the man and woman are albino decided to have children. Remember that albinism is inherited as a rare autosomal recessive trait. To their surprise their first child had normal skin pigmentation. They eventually have two more children and they also have norma...

Science
Thank you very much, I dont remember learning it like this but this certainly does help alot and this makes it easier to understand. Once again, thank you

Science
My original question: In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)? PsyDAG replied: Since 4 of the 8 are paternal, 4/8 * 3/7 ...

Science
can you please explain how you got those numbers.

Science
In a diploid organism with 2n=8, what is the probability that one of its gametes will contain only paternally derived chromosomes (ie, not a mixture of paternal and maternally derived chromosomes)?

Science
for number two you gave to calculate the probability of only 3 male offsprings being born and the probability of at least one being black.

Science
Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced brown offspring. Wha...

Science
A light year is the distance it takes a beam of light to travel in a year. The speed of light is 2.99 x 10^8 m/s. Distance from sun to Earth: 150 000 000 Km *remember to change km to m use equation: t=d/v t=150 000 000 000m/2.99 x 10^8 m/s t=501sec = 8.35 min **I rounded the d...

biology - Genetic probability
Black coat colour in Labrador Retrievers is produced by the dominant B allele. Brown labs are homozygous recessive (bb). Duke, a black male, whose mother was brown, is mated with Shadow, a black female, who in a previous mating with another father produced brown offspring. Wha...

science
1) A - b/c that is like saying, is an arm an organism. 2) B - we are come composed of cells with a 'true' nucleus 3)B - Organisms under the kingdom Prokaryotes do not have a 'true' nucleus, that is to say that there is no nucleus 4)C - Photosynthesis makes gluc...

physics
A car travels along a highway with a velocity of 24 m/s, west. The car exits the highway and 4.0 s later, its instantaneous velocity is 16 m/s, 45o north of west. What is the magnitude of the average acceleration of the car during the five-second interval?

Physics-PLEASE HELP, it's due soon
Hey, I know it's due this tuesday.. If you have other 4 answers then please get back to me at whoismoh at gmail dot com I have this answer.. This way we can share the answers.. Let me know Thanks

Math
For which real values of x do the following vectors form a linearly dependent set in R3? v1= (x, -1/9, -1/9) v2= (-1/9, x, -1/9) v3= (-1/9, -1/9, x)

physics
In the problem, the mass isn't known though, you know that the one car is identical to the other though. i end up getting, 90km/h=M1*V What do I do after that?

physics
Thank you that was bothering me for so long.

physics
The question is: two identical cars hit each other and lock bumpers. If a car moving with a speed of 90km/h appraoches a stationary car, what is the speed immediately after coupling cars.

physics
Hi, i really need help with this question. Two identical cars hit each other and lock bumpers. A car moving with a speed of 90 km/h approaches a stationary car

religion
thanks for the last answer it helped me great would the same site helple to know what he did in Jericho

religion
what happened to jesus in cana

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