Answer:
Therefore the required probability is 
Step-by-step explanation:
The probability of success is 
The number of trial = 4
X= the items survive out of 4
p =the probability of success and q = the probability failure.
p= and 
Therefore the required probability is
I used -25 as an example:
Answer:
= -2.5 × 101
(scientific notation)
= -2.5e1
(scientific e notation)
= -25 × 100
(engineering notation)
(one)
= -25
<span>(real number)
</span>Scientific notation<span> is used to </span>express<span> very large or very small </span>numbers<span>. A </span>number in scientific notation<span> is written as the product of a </span>number<span> (integer or decimal) and a power of 10. The </span>number<span> has one digit to the left of the decimal point. The power of ten indicates how many places the decimal point was moved.</span>
Answer:
–21.87 ÷ 4.79
≈ -20 ÷ 5
≈ -4
Step-by-step explanation:
front end estimation means to round off to the most left digit.
eg 12 ≈ 10
