Answer:
0 is rational
5 rational so u are correct
Step-by-step explanation:
Answer with positive exponent = 
or 
Answer with negative exponent = 
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Explanation:
The rule we use is
If we multiply two exponential expressions with the same base, then we add the exponents.
The base for each is 5. The exponents 4 and -7 add to -3.
This means
To convert to a positive exponent, we apply the reciprocal to the base. We go from 5, aka 5/1, to 1/5.
So, 
If A = {2, 3, 4, 5} B = {4, 5, 6, 7} C = {6, 7, 8, 9} D = {8, 9, 10, 11}, find (A ∪ B) ∪ C
Iteru [2.4K]
Answer:
(AUB)UC=2,3,4,5,6,7,8,9
put all these numbers inside curly bracket
Step-by-step explanation:
3y=-2x-19 -5x-3y=-2-5x - (-2x - 19) = -2
-5x + 2x + 19 = -2
-3x = -21
x = 7
3y = -2(7) - 19
3y = -14 - 19
3y = 33
y = 11
Hello!
You can plug the answers in for x and see if it is right
x^2 + 8x = 33
-11^2 + 8(-11) = 33
121 - 88 = 33
3^2 + 8(3) = 33
9 + 24 = 33
So the answer is the first one
Hope this helps!
