Which coordinate pair satisfies both of these equations?
-4x -2y = -12
4x + 8y = -24
answer options :
(-2,6)

(6,-6)

(2,-2)

(-13.2,3.6)

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

In the rectangle below ac=30 units what is de

*segment an is an altitude of right ? abc with a right angle at a. if ab = 2root 5 in and nc = 1 in, find bn, an, ac.