Answer:
x = - 2
Step-by-step explanation:
(f + g)(x) = f(x) + g(x)
f(x) + g(x) = x² - 2x + 6x + 4 = x² + 4x + 4
Equating to zero, that is
x² + 4x + 4 = 0 ← left side is a perfect square
(x + 2)² = 0, thus
x + 2 = 0 ⇒ x = - 2
Theoretical probability
Heads = 1/2
Tail = 1/2
Expiramental probability
Heads = 11/20
Tails = 9/20
Answer:
6
Step-by-step explanation:
4.5 dived by 3/4 equals 6
Answer:
?
Step-by-step explanation:
Answer:
(9,20)
Step-by-step explanation:
9 and 20 together... (9,20)