Answer:
1/7
Step-by-step explanation:
x^(-1) means to find the reciprocal of number x
so 7^(-1) = 1/7
The answer is x=0.97 while y=3.90
Answer:by summing up the standard unit is
230g
= 4sqrt3
-2i sqrt -12
= -2i * i sqrt12 <-- i^2 = -1
= -2i^2sqrt12
= -2(-1)sqrt12
= 2sqrt12
= 2 * 2 sqrt3
