Friday
May 24, 2013

Posts by Christina


Total # Posts: 790

Algebra
Factor x^2-1=0 How do you factor when there is no B in this equation?

Algebra
It says to complete the square for x^2-4x-2=0 How do you do this? Please help.

english
what is the correct way to write, (A characteristic I dislike is someone who is weak).

physics
A 2 kg ball is dropped from a height of 433 mm. Calculate the height (above the ground) at which KE is one third of PE.

Biology
In order to predict the percentage of males and females three assumptions must be considered: 1. The X carrying sperm and Y carrying sperm have an equal chance of fetilization: 2. The egg and sperm combine at random: 3. the XX and XY zygotes have equal chance of development at...

chemistry
Reaction with the presence of sunlight would be: CH4 + Br2 --> CH3Br + HBr

Math
Sam drives his car 23,040 miles per year. Find this rate in the number of miles driven per month, to the nearest mile

Calculus
Suppose f(pi/3) = 3 and f '(pi/3) = −7, and let g(x) = f(x) sin x and h(x) = (cos x)/f(x). Find the following. a. g'(pi/3) b. h'(pi/3)

calculus
How do I rond three decimal places?

Algebra
Use slopes and intercepts to determine if the following system is consistent, inconsistent, or dependent. -4x - 5y = 20 -12x - 30y = 60

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