16^x-4^x-5=0

compound form XF₂, where X symbolizes a representative element.

a) If the compound were ionic, which group would you expect X to belong to? Explain

b)Name three properties that you would expect the ionic compound XF₂ to have.    

Two observations posts are 1 500km apart. Post A observes an object at a 55 degree angle. Draw a scale diagram from the object to the baseline. (Let 1 cm=???Km) 

The circumference of apples from a paticular tree us normally distributed, with an average of 22 cm and standard deviation of -1. What is the Z-score of an apple with a circumference of 25 cm? 

What was Canada’s most significant contribution on the battlefields of World War I?

N(t) satisfies the differential equation  $\frac{dN}{dt}=ke^{at}N$dNdt =ke^atN , a and t are constants and t is the time. Use serperation of variables and the intial  condition N(0)= N(knot) to show that N(t)= $N\left(knot\right)e^{\frac{k\left(e^{at}-1\right)}{a}}$N(knot)e^k(eat−1)a   

PLEASE HELP. Can you tell me how The Cold War and the development of NATO helped shape and modify Canada's Foreign Policy?

does either methanol, ethanol, cobalt chloride, or 1-butanol have a polar end? What was the polar end for each molecule?

A basketball player had a success rate of 80% for shooting free throws. Calculate the probability she will make three out of five attempts.