In right triangle ABC with right angle C, sin A = 4/5 and cos A = 3/5. What is sin B + cos B?

so sin B + cos B =

Step-by-step explanation:

in the given right angled triangle angle A and angle B are complementary to each other

so, Sin A = Cos B

and Cos A = Sin B

now,

=》

=》

=》

=》

your answer would be 12

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