2 rational numbers are C. 2.777 and D. -7/3
a rational number<span> is any </span>number<span> that can be expressed as the quotient or fraction p/q of two integers
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as you know 0.7777 (7 repeat) = 7/9
so 2.777(7 repeat) = 2 7/9
Answer:
D
Step-by-step explanation:
Note that:
- i^2 = -1
- i^3 = -i
- i^4 = 1
- i^5 = i
and after that the pattern repeats. Using the rules of exponents, i^12*(i^13)^3 = i^51 = (i^4)^12 * i^3 = 1*(-i) = -i.
-1 would not be included. It is an integer not a whole number.
Add 2.5 to each side
C -2.5 +2.5 =< 2.5+2.5
C=< 5
=< means less or equal
