Answer:
A) 18.75.
B) It'd be negative because that's how much he owes his service provider
Step-by-step explanation:
2x^2 - 11 = 87
2x^2 = 87 + 11 = 98
x^2 = 98/2 = 49
x = sqrt (49) = + or - 7
The tenth round has a lowercase i.
<h2>
Hello!</h2>
The answer is:
The correct option is:
B)
<h2>
Why?</h2>
To solve the problem, we need to remember the quotient of power property, it's defined by the following relation:
If we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.
So, we are given the expression:
Which is equal to write:
Then, calculating we have:
Hence, the answer is:
B)
or
Have a nice day!
5x-y=-6
y=-7x+6
The second equation tells you what Y is, so replace y in the first equation with its value:
5x- (-7x+6) = -6
Remove the parenthesis:
5x + 7x +6 = -6
Simplify:
12x + 6 = -6
Add 6 to both sides:
12x = 0
Divide both sides by 12:
x = 0
Now you have x, replace x with 0 and solve for y:
5(0) -y = -6
0 - y = -6
Multiply both sides by -1:
y = 6
The solution is X = 0 and y = 6, which is written as (0,6)