Answer: x=-2
Step-by-step explanation:
1.1x+1.2x=2.3x
2.3x-5.4=-10
-10+5.4=-4.6
2.3x=-4.6
-4.6/2.3=-2
x=-2
When you have an exponent that is negative, it means to take reciprocal of the fraction then take it the power.
Some examples:
5^-2 = 1/5^2 = 1/25
10^-3 = 1/10^-3 = 1/1000
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Answer:
-7
Step-by-step explanation:
Answer:
C. (5, 3)
D. (7, -1)
Step-by-step explanation:
The requirement that y < 4 eliminates points A, E, F. None of 7, 4, 5 are less than 4.
The requirement that x+y ≥ 6 eliminates point B. 1-1 = 0 is not at least 6.
Points C and D satisfy both inequalities.
