fatma
Popular questions and responses by fatma
chemistry
explain changes that occur when the following substances are separated heated in oven crucible 1)copper metal. 2)copper nitrate
asked on December 31, 2018 
organic chemistry
2. An unknown white solid has melting point range 119 – 121o C. Benzoic acid is a white solid of 122 o C melting point. How can a student confirm the identity of the unknown solid (is the benzoic acid or not)
asked on March 16, 2017 
math
Write out the first five term of the sequence determi whether the sequence converges and if so find its limit (n/(n+3) n=1 to n = ∞
asked on June 30, 2015 
Physica
If a student desires to produce three times larger and an erect image from a double convex lens with focal length of 15 cm ,then he should place the object from the lens at ;
asked on July 21, 2012 
math
A product of a two digit number is24 when the number is reverse exceed the original number by 27 find the number
asked on August 28, 2016 
math
Divide the following by both long division and synthetic division a). x^3 + x^2  2x + 4 by x2 b). x^5 + 4x^4 + x^3  x^2 + 2x  7
asked on April 4, 2016 
math
Sum[(1)^(n  1) (7/9^(n  1)), {n, 1, Infinity}]
asked on June 30, 2015 
math
∑ (1)^((n1)) . 7/9^(n1) n=1 to ∞
asked on June 30, 2015 
math
∑ (3/4)^(n1) n=1 to n=∞
asked on June 30, 2015 
math
Write out the first five term of the sequence determi whether the sequence converges and if so find its limit (n/(n+3) n=1 to n = ∞
asked on June 30, 2015 
math
Write out the first five term of the sequence determi whether the sequence converges and if so find its limit ( n^2)/(4n+1) n= 1 to n = ∞
asked on June 30, 2015 
math
Find the area between x=y and x=2y^2
asked on June 26, 2015 
math
Find the exact arc length x=1/3(y^2 +2)^3/2 from y= 0 to y = 1
asked on June 26, 2015 
calculus
Let f x coth x . Use the Graph software posted in Moodle to do the following: (a) Graph f x . (b) Graph the tangent and normal lines to the graph of f x at x 1. (c) Graph f x . (d) From the graphs obtained in parts (a)
asked on April 19, 2014 
physics
1\ Acar is moving with acceleration 200 m in 50 sec reached to velocity 10 m\sec .what the total distance the car moved in 60 sec
asked on July 7, 2012 
english
Change the sentences,replacing the phrase people who are..with an adjective used as an noun. 1People who are uneducated have a hard time catching up.
asked on September 20, 2011

4th grade
maybe there was a river
posted on March 8, 2018 
4th grade
Zxcvfgnhjmk,l;
posted on March 8, 2018 
organic chemistry
I think it is a benzoic acid but it is impure
posted on March 16, 2017 
math ALGEBRA
T=5 u=6 5 + 6=11 65_56=9 Answer =56
posted on August 28, 2016 
Algebra
c^2 = a^2 + b^2 = 12^2 + 5^2 = 144 + 25 = 169 , then square root this number to give =13 ft. the length of the ladder :)
posted on April 4, 2016 
Physics
Amotorcycle slowed down to rest from avelocity of 10m\sec whiletraveling 30m what is its average acceleration
posted on July 7, 2012 
acids and alkalis
please tell me how many alkalias are there please i need it fo tomorrow or else i will get detention plzplz i love you and marry you if u tell me da answer plz i beg u reply back plz
posted on October 7, 2008