Answer:
D
Step-by-step explanation:
<span>The probability that a house in an urban area will develop a leak is 55%. if 20 houses are randomly selected, what is the probability that none of the houses will develop a leak? round to the nearest thousandth.
Use binomial distribution, since probability of developing a leak, p=0.55 is assumed constant, and
n=20, x=0
and assuming leaks are developed independently between houses,
P(X=x)
=C(n,0)p^x* (1-p)^(n-x)
=C(20,0)0.55^0 * (0.45^20)
=1*1*0.45^20
=1.159*10^(-7)
=0.000
</span>
4(2x^2+3y^2)^2 = 16x^4 + 48x^2y^2 + 36y^4
(4x-5)(16x^2 + 20x + 25) = 64x^3 - 125
4 ( 2x^2 + 3y^2)(2x^2 - 3y^2) = 16x^4 -36y^4
hope that helps
Answer:
24-pack
Step-by-step explanation:
you are paying less per bottle than the other 2 packs.
¾ + ¾ + ¾ + ¾ = (3+3+3+3)/4 = 12/4 = 3
¾ × 4 = (3 × 4)/4 = 12/4 = 3
