It should be be cause -7 time 7 is -49 over 3
-49/3
Answer:
The first one is incorrect
Step-by-step explanation:
I'm sorry if this is wrong...
Answer:
2^(1 + ((n-1) mod 4)) mod 10
Step-by-step explanation:
We presume you want the last digit of the power of 2, not the last digit of the exponent. Powers of 2 mod 10 are ...
2^0 : 1
2^1 : 2
2^2 : 4
2^3 : 8
2^4 : 6
2^5 : 2 . . . . and the sequence repeats: 2, 4, 8, 6, ...
That is, ...
(2^n) mod 10 = 2^(1 + ((n-1) mod 4)) mod 10 . . . for n > 0
False, both lines are oblique (diagonal) so they meet at some point on a graph. They can only have no solutions if the lines are parallel/have the same slope.
<span>Earths crust mineral composition are silicon oxide (SiO2),Magnesium monoxide (MgO),Ferrous oxide(FeO),Calcium monoxide (CaO),Sodium dioxide(Na2O) ,Potassium dioxide(K2O), while the Earths crust are sodium,magnesium,potassium,calcium,iron,aluminum,silicon,and oxygen .Because Earth is based on chemical composition and split up into a crust,mantle,outer core and inner core.</span>