Katherine is facing a difficult decision between how much time she spends as a cheerleader and how much time she spends studying her economics. which economic concept describes the problem she is facing? a) scarcity b) competition c) fiscal policy d) supply and demand

The answer is A) Scarcity

angle a = 40.6°

step-by-step explanation:

for any right angle triangle we know the pythagoras theorem reveals

hypotenuse² = height²+base²

by this formula we will calculate the length of hypotenuse

h² = 6²+7²

⇒ h =√36+49 = √85 = 9.22

now from the given triangle sin a = height/ hypotenuse

                                                sin a = 6/9.22 = 0.651

therefore

so angle a = 40.6°

presidency should be the title