Answer:
292.6 I think
Step-by-step explanation:
to double check just add all sides up together
5(2y + 7) = 20
5(2y) + 5(7) = 20
10y + 35 = 20
<u> -35 -35</u>
<u>10y</u> = <u>-15</u>
10 10
y = -1 1/2
Answer
180
if your feeling nice can you give me a brainlest :)
Answer:
9: tens place
4: tenths place
Step-by-step explanation:
Answer: the probability that fewer than 100 in a random sample of 818 men are bald is 0.9830
Step-by-step explanation:
Given that;
p = 10% = 0.1
so let q = 1 - p = 1 - 0.1 = 0.9
n = 818
μ = np = 818 × 0.1 = 81.8
α = √(npq) = √( 818 × 0.1 × 0.9 ) = √73.62 = 8.58
Now to find P( x < 100)
we say;
Z = (X-μ / α) = ((100-81.8) / 8.58) = 18.2 / 8.58 = 2.12
P(x<100) = P(z < 2.12)
from z-score table
P(z < 2.12) = 0.9830
Therefore the probability that fewer than 100 in a random sample of 818 men are bald is 0.9830
