Answer:
x< -64
Step-by-step explanation:
hope this helps ;)
Answer:6/5 or 1 1/5
Step-by-step explanation:add them and you get 6/5 or 1 1/5
Answer:
0.125
Step-by-step explanation:
For a fair coin, H and T is the same probability. To get zero tails, we need to toss a head, then a head, and again a head - each time we succeed with probability of 0.5, so succeeding 3 times happens 0.5^3 of the time = 0.125
Alternatively, look at all the options:
HHH
HHT
HTH
HTT
THH
THT
TTH
TTT
Only one option has no tails, and because the coin is fair, each option is equally probable, so the probability of HHH is 1/8 = 0.125
Answer:
(5h-4t)(5h+4t)
Step-by-step explanation:
25h² - 16t²
adding and subtracting 20ht from it (√25 and √16 = 5x4 = 20):
25h² + 20ht - 20ht -16t²
factor:
(5h-4t)(5h+4t)