Which of the following best describes karl marx?

a. a journalist who spent his life chronicling the poverty of britain’s industrial centers

b. a parliamentary leader who establish london’s first police force

c. a socialist who called for the overthrow of the capitalist system

d. an economist who wrote about the wealth of nations

B. A parliamentary leader who helped establish London’s first police force  

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°