The first step in solving this is to substitute x with 3 and y with 2, so that
becomes
Then simply solve using the order of operations.
First exponents (there are no parentheses)
Then multiply and divide
And finally add and subtract
Therefore the value <span>of 1/3 x^2 + 5.2y when x=3 and y=2 is 13.4</span>
Answer:
C -16x + 74/5
Step-by-step explanation:
2(x + 7) - 18x + (4/5)
Expand the brackets.
2x + 14 - 18x + (4/5)
Combine like terms.
(2x - 18x) + (14 + (4/5))
-16x + 14 4/5
Convert 14 4/5 to an improper fraction
14 4/5 = ((14 * 5) + 4) / 5 = 74 / 5
Answer = -16x + 74/5
Answer:
zero (0)
when the exponent 0 is applied to a nonzero base, the result is always 1
Step-by-step explanation:
Acoording to the zero power rule, a non zero number raised to the power 0 is always 1:
whit 
Let's check this property using an example:
We know that a quantity over itself is always 1: 
We also know that a base without exponent is always raised to the power 1: 
Now, according to the division power rule 
, so 
Answer:
A. 
Step-by-step explanation:
E = v + Ir
E - v = Ir (subtract by v on both sides)
(E-v)/I = r (divide by I on both sides)
10
Step-by-step explanation:
6=2(-2)x5+4(-2)×2
6=-4×5-8×2
6=-20-8×2
6=-20-16
6=-36
