Se considera prisma dreapta abca'b'c' care are la baza triunghiul echilateral de latura ab=6 si inaltimea aa'=3 cm. a)aflati sinusul unghiului format de a'b cu (abc)
b)distanta de la A' la BC
C)masura unhiului dintre planele (A"BC) si (ABC)

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

is there a picture

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

m∠a is 90°

m∠b is 40°