2 years ago

9ab over 27b = simplify 9ab ___ 27b

Mathematics

1 answer:

Darina [25.2K]2 years ago

8 0

Answer:

1A/3 OR 1/3A

Step-by-step explanation:

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If you toss 9 fair coins, in how many ways can you obtain at least one tail?

maks197457 [2]

9/18 or 50% if you toss the coin because when you toss 1 coin you get a 1/2 chance of getting tails. Do that nine times and you get 9/18

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2 years ago

How many fractions are equivalent to 4/5? explain

Pavel [41]

There are several fractions that are equivalent to 4/5. Some are 8/10, 80/100, 800/1000. They all equal the same decimal: 0.8

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2 years ago

PLEASE HELP!!!! 25 POINTS!!!!

Andrei [34K]

Answer:

0.9562

Step-by-step explanation:

Binomial probability is mathematically expressed as:

$P(X=x)={n\choose x}p^x(1-p)^{n-x}$

Given that p=0.18, n=5 , is calculated as:

$P(X\leq 2)=P(0)+P(1)+P(2)\\\\={5\choose 0}0.18^0(1-0.18)^5+{5\choose 1}0.18^1(1-0.18)^4+{5\choose 2}0.18^2(1-0.18)^3\\\\=0.3707+0.4069+0.1786\\\\=0.9562$

Hence, the probability of no more than 2 successes in 5 trials is 0.9562

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2 years ago