2018年3月24日 · Multiply 20% by 190 (remember that you cannot multiply 190 by 20, 20% does not equal 20, it equals a decimal) #20%=0.2 rarr# To convert a percentage to a decimal, divide …

2015年11月12日 · 190 The quick way of finding the area of this trapezoid would be to simply use the know formula, which ...

2016年2月21日 · It would take Sarah 35 minutes longer than Leo to type 5500 words. With this type of problem, I like to change the information given into ratios. We are told that Leo types …

2018年2月26日 · 1 1/2 hours Distance traveled is equal to speed multiplied by time: d=st Where d is distance traveled, s is the speed, and t is the time (here, it will be in hours, as we're using …

2016年7月9日 · What is the size of the smallest feature that could be distinguished on the surface of Venus (at closest approach) by the Arecibo radio telescope at an angular resolution of 1″?

2017年5月9日 · The new volume of the neon is: V_2=87.5mL Boyle's law states that pressure is inversely proportional to volume for a fixed quantity of an ideal gas at a constant temperature.

2016年3月30日 · "p"K_"a" = 5.4 "pH" = 3.7 "p"K_"a" is simply -log_10(K_"a"). It is a constant at any temperature and does not depend on the molarity of the solution. "p"K_"a" = …

2016年8月30日 · Question A 23 kg body is moving through space in the positive direction of an x axis with a speed of 220 m/s when, due to an internal explosion, it breaks into three parts. One …

2016年2月4日 · In the figure, a block of mass m = 20 kg is released from rest on a frictionless incline of angle θ = 31°. Below the block is a spring that can be compressed 2.8 cm by a force …

2018年7月15日 · Since #10=2*5#, we can rewrite this as. #sqrt(2*5)#, which is also equal to #sqrt2*sqrt5# However, since we have no perfect square factors, this is about as simplified as …