Can someone help me?

-16t^2 + 106 = 47

t = √59/4

Step-by-step explanation:

106 - 59 = 47

-16t^2 + 106 = 47

-16t^2 + 106 - 106 = 47 - 106

-16t^2 = -59

-16t^2 / -16 = -59 / -16

t^2 = 59/ 16

√t^2 = √59/16

t= -√59/4 and √59/4

but you cant have negative time, so √59/4

step-by-step explanation:

idk the answer i want to say 10 but then it would be equal so try 9 but then yeah so yeah we love edgen

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