What trusted american journalist called the vietnam war “unwinnable” in 1968?
a. edward r. murrow
b. roger mudd
c. walter cronkite
d. tom brokaw user: what fashion trend did president kennedy inspire in the 1960s?
a. men stopped wearing undershirts.
b. men stopped wearing hats.
c. men started wearing undershirts again.
d. men started to wear hats again.

The answer is c. Walter Cronkite.  His coverage of the Vietnam War included the Tet Offensive change public opinion of the war.  This led to decline in support of the war and the public demanded that the U.S. withdraw from Vietnam.

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°