. We begin by multiplying the "regular" numbers first. 2.5 × 3.9 = 9.75. That's good; it's already in the proper format for scientific notation. Now we multiply the bases of 10 with their exponents. Since the bases are both 10, they are like. When we multiply like bases, we add their exponents.
. Our answer then is
. There you go!
The fourth term of the binomial expansion can be calculated using the formula for (i+1)-th term of the binomial expansion:
In order to find term , determine that
Now
Answer: correct choice is A
Answer:
No.
Step-by-step explanation:
It is given that Darius is putting tiles on the roof of his house.
Darius had completed = th of the work
He takes time = hours to complete
th of the work
The remaining work =
∴ Darius completes th of the work in =
hours
So, th of the work in =
hours
hours
Therefore total time taken to complete the work hours
hours
hours
hours
hours
Thus, Darius continues to work at the same rate will not be able to complete the work in 4 hours.