Please help me with trig! True or False

False

Step-by-step explanation:

If it is a right triangle, the Pythagorean theorem will apply

a^2 + b^2 = c^2

4^2 + 5.05^2 = 6.6^2

16 +25.5025 =43.56

41.5025=43.56

This is not true so it is not a right triangle

Round to the nearest integer

4^2 + 5^2 = 7^2

16+25 = 49

41 =49

This is not true

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