The given expression is .
We need to simplify the given expression.
<h3>What is a rational number?</h3>
In mathematics, a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q.
Now group the rational numbers
Therefore, the simplified value of the given expression is .
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Answer:
Step-by-step explanation:
Cross multiply:
Divide both sides by 22:
Take of both sides:
Put left hand side into a calculator now:
To the nearest tenth that is:
Answer:
P(0≤T≤400)=0.3296
Step-by-step explanation:
we know probability density function is
probability that bulb will fail within first 400 hours
P(0≤T≤400)=
P(0≤T≤400)=
=
=
=1-0.67032 = 0.3296
so about 32.96 % bulb will fail within 400 hrs.
Answer:
200
Step-by-step explanation:
150=75% * X
X= 150/0.75
X-200
Answer:m
<h2>⇆<u>g</u>
<em><u>ood</u></em></h2>
Step-by-step explanation: