Minh
Popular questions and responses by Minh
trig
A tree casts a shadow 50 yards long when the angle of the sun (measured from the horizon) is 30 degree. How tall is the tree in feet? (A) 150p3 (B) 50p3 (C) 150 (D) 75p3 (E) None of the above.
asked on May 7, 2011 
Biotechnology
Consider the titration of 25.0 mL of 0.050 0 M Sn2+ with 0.100 M Fe3+ in 1 M HCl to give Fe2+ and Sn4+, using Pt and calomel electrodes. (a) Write a balanced titration reaction. (b) Write two halfreactions for the indicator electrode. (c) Write two Nernst
asked on December 4, 2016 
social studies
what is the process by which people from foreign countries became U.S. citizens
asked on September 17, 2013 
english
can you help me fill in each blank with a word about Money Problem
asked on October 24, 2016 
trig
if sec theta=5/4 and 180degree < theta< 270degree, find tan theta a.3/5 b 4/5 c.3/4 d.3/5
asked on May 8, 2011 
trig
1stthe reason i keep change my name because some of my friends are using my computer by their own name to asked questions. we are having a hard time solving each trig problems 2nd if sin theta=0.6 and 90 degree
asked on May 8, 2011 
trig
A triangle T has vertices P, Q and R. The length of the edge between P and Q is 10, and the angles at P and Q are 60degree and 45degree respectively. What is the area of T? (A) 50p3/(1 +p3) (B) 10p3/(1 +p3) (C) 50/(3 + 3p3) (D) 10/(3 + 3p3)(E) None of the
asked on May 7, 2011 
trig
A triangle T has vertices P, Q and R. The length of the edge between P and Q is 10, and the angles at P and Q are 60degree and 45degree respectively. What is the radian measure of the angle at R? (A) 5pi/24 (B) 5/24 (C) 5pi/12 (D) 5/12 (E) None of the
asked on May 7, 2011 
trig
Find the numerical value of cos(60degree) + cot(30degree): (A) 1/2 (B) 3p3/2 (C) 12 +p3 (D) 52p3 (E) None of the above.
asked on May 7, 2011 
trig
The hypotenuse of a right triangle has length 8 and one of the other edges has length 3. What is the sine of the angle opposite the edge of length 3? (A) 3/p55 (B) 3/8 (C)p55/8 (D) 55/64 (E) None of the above.
asked on May 7, 2011 
trig
Determine the value of cos(theta) given that cos(pi âˆ’ theta) = .2 (A) p.96 (B) .2 (C) âˆ’.2 (D) âˆ’p.96 (E) None of the above.
asked on May 7, 2011 
trig
Find the sum of all of the solutions to the equation cos(2x) âˆ’ sin2(x) âˆ’ 1 = 0 in theinterval 0 < x < 5 pi. (Use radian measure for x.) (A) 15pi (B) 0 (C) pi (D) 10pi (E) None of the above.
asked on May 7, 2011 
trig
2. A circle has a radius of 10 centimeters. Find the length, in centimeters, of the arc intercepted by a central angle of 100 degree. (A) 50pi/9 (B) 100pi/9 (C) 500pi/9 (D) 18pi/5 (E) None of the above.
asked on May 7, 2011

Chemistry
K2CrO4=2*39.10g+52.00g+16.00g*4=194.20g
posted on March 11, 2018 
Chem
B) = 3SiH4(g) + 4NH3(g)= SiN4(g) + 12N2 3: 1: 12= ratio 3= 3.125 1= 1.042 12= 12.5
posted on March 31, 2017 
grammar
Sam was riding his bike
posted on December 28, 2016 
Physics
F=MA> sqrt(2AX) distance is X
posted on November 26, 2015 
physics
F=MA> sqrt(2AX) distance is X
posted on November 26, 2015 
Physics
F=MA> sqrt(2AX) distance is X
posted on November 26, 2015 
Physics
F=MA> sqrt(2AX) distance is X
posted on November 26, 2015 
scoials
They help
posted on October 31, 2014