Answer:
x = 18.
Step-by-step explanation:
x + 9.5 = 27.5
Subtract 9.5 from both sides:
x = 27.5 - 9.5
x = 18 (answer).
Since we are to complete the square, therefore I believe
the correct given should be:
x ^ 2 – 11 x
Take note of the symbol ^ which denotes that 2 is an exponent
of x.
The general form of a binomial equation is in the form of:
a x^2 + b x + c
Where in this case:
a = 1
b = -11
c = unknown
To complete the square, we have to find for the value of
c. This is calculated using the formula:
c = (b / 2) ^ 2
c = (-11 / 2) ^ 2
c = 30.25
Therefore the complete equation is:
<span>x ^ 2 – 11 x + 30.25</span>
Answer:
CFD = 180
EFD= 152
180-152= 28
CFE= 28
Step-by-step explanation:
Answer:
<h2>n = -12</h2>
Step-by-step explanation:
2n + 5 = n - 7 <em>subtract 5 from both sides</em>
2n + 5 - 5 = n - 7 - 5
2n = n - 12 <em>subtract n from both sides</em>
2n - n = n - n - 12
n = -12
Answer:
You bought 4 items.
Step-by-step explanation:
3.16 divided by 0.79 = 4
