<span><u>Answer</u>
25c^2-4/9
<u>Explanation</u>
In this question you are expected to expand (5c+2/3)(5c-2/3)
(5c+2/3)(5c-2/3)=(5c×5c)-(5c×2/3)+(5c×2/3)-(2/3×2/3)
=25c^2-10c/3+10c/3-4/9
25c^2-4/9
The expanded form of (5c+2/3)(5c-2/3) is 25c^2-4/9 and this is what the question requires of you to do.</span>
Answer:
B, 224in2
It may get tedious but just find the area of each face and write them down
Step-by-step explanation:
16: B; irrational number, real
17: C; whole, integer, rational, real
18: B; real, rational, integer
Answer:
Step-by-step explanation:
Recall that the formula for density is:
therefore for this case we have:
8 1/4 is given as a positive number so you could write it as +8 1/4
The opposite of positive is negative, so you would have -(+8 1/4)
The answer is A
