There is a difference because in the spring, there may be more days of rain, therefore that would increase the mean for the spring compared to the other days.
X - 1 2/3 = -2
x - 1 2/3 + 1 2/3 = -2 + 1 2/3
x = -1/3
Example: 2x+2y=8 and 3y+2x=6
Okay so u first want to put on of the equations into a y= form. So let's use 3y+2x=6. Subtract 2x from both sides. 3y=6-2x divide by 3. Y= 6-2/3x or y= -2/3x + 6. Now just plug this new equation in for Y since "y=" into the other equation.
2x + 2(-2/3x + 6) = 8.
Then you would distribute the 2 into the parenthesis and simplify to solve for x.
After you solve for x, plug x into one of the original equations to find y.
Answer:
Choice A. P = I² · R where
- P is the power in the DC circuit,
- I is the current through the circuit, and
- R is the total resistance of the circuit.
Step-by-step explanation:
Electrical power is the rate at which the electrical force does work. So what is electrical work? That's the work
that the electrical force do when it moves charges
across a potential difference
:
W =
.
The power is the rate at which the electrical force do the work:
.
On the other hand, current
is the charge through a cross-section of the circuit in unit time. By the definition of current:
.
.
Consider Ohm's Law:
.
Therefore
.
Answer:
4x^2 - 6x^2 -6x + 3x +3 - 4
Step-by-step explanation:
The terms here involve x^0, x, x^2.
Write the x^2 terms first: 4x^2 - 6x^2;
then write the x terms: -6x + 3x; and
then write the constants: 3 - 4
and so we have, in descending powers of x,
4x^2 - 6x^2 -6x + 3x +3 - 4