Which ordered pair (x,y) satisfies the system of equations shown below? 2x-y=6 x+2y=-2 A) (-6,2) B) (-2,2) C)(2,-2) D) (4,2)
2 answers:
You might be interested in
Answer:
Step-by-step explanation:
Let
x ----> the average depth of the resulting layers of ash and rock
we know that
To find out the average depth, divide the cubic kilometers of molten rock by the area where all the ejected material fell.
so
Convert to meters
Remember that
so
Convert to mixed number
Answer:
1
Step-by-step explanation:
When numbers are raised to an exponent/power, it means how many times you are multiplying the number by itself.
Follow BEDMAS order. (Brackets, exponents, division/multiplication, addition/subtraction).
Solve inside the brackets of (8^1)^0 first
(8^1)^0 8^1 is 8. (Any number ^1 is itself).
= 8^0 Any number to the power of 0 is 1.
= 1
You can also follow the exponent rule where:
(8^1)^0 = 8^(1*0) = 8^0 = 1