The answer is 50%
if you list out the possibilities, you get
(H being heads, T being tails)
HHH <- 3 heads
HHT <- 2 heads
HTH <- 2 heads
HTT
THH <- 2 heads
THT
TTH
TTT
we counted 4 of them to have at least 2 heads out of the 8 possibilities
4/8 = 1/2 which is 50%
Answer:
4x^2 + 4x + 3.
Step-by-step explanation:
(f - g)(x)
= f(x) - g(x)
= 5x^2 - 3 - (x^2 - 4x - 6)
= 5x^2 - 3 - x^2 + 4x + 6
= 4x^2 + 4x + 3.
Answer:
B
Step-by-step explanation:
z = 3(cos π/2 + i sin π/2) =→
z⁷ =
<span>-14 x 8 x 1/4 + (-22)
Apply BODMAS
Open the brackets:
</span>-14 x 8 x 1/4 + (-22) = <span>-14 x 8 x 1/4 -22
Division
-14 x 8 x (1/4) - 22 = </span><span>-14 x 8 x 0.25 - 22
</span><span>
Multiplication
</span><span>(-14 x 8 x 0.25 )- 22 = -28 - 22
</span><span>
Subtraction
-28-22 = -50
Correct answer: A <-50>
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