ANSWER IS C because I looked it up
<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
Answer:
25
Step-by-step explanation:
If you add 25 to both sides, you get
x^2-10x+25=26.
Now, you can simplify the left side into a perfect square
(x-5)^2=26
Answer:
13/8
in decimal form it is 1.625
Step-by-step explanation:
So to start off I assume 5^2 is 5 squared in which case this Is essentially 3+25 which is 28.
and the way it works is simple 5^2 Is 5 times 5, 5^3 is 5 times 5 times 5 and so on.
