This is found using the binomial distribution with P(H) = 1/2 and P(T) = 1/2 n = 15 and r = 10
= nCr(0.5)^(15-10)(0.5)^10
= 15C10 * 0.5^15 = 0.0916 or 9.16%
3^2 Is the answer. Which is the third option.
Answer: it’s 66 I got it right
Step-by-step explanation:
Rewrite then factor as a difference of cubes:
1 - 64<em>x</em>³ = 1³ - (4<em>x</em>)³
= (1 - 4<em>x</em>) (1² + 4<em>x</em> + (4<em>x</em>)²)
= (1 - 4<em>x</em>) (1 + 4<em>x</em> + 16<em>x</em>²)
Answer:
Step-by-step explanation:
The first step is to distribute.
2(2x) 2(5)
this will give you 4x and 10.
4x +10 +6=20
then, you add 10 and 6, which will give you 16
4x +16=20
next, you subtract 16 on both sides, which will leave you with 4x =4
x=1
