Answer:
Step-by-step explanation:
Brain correctly use a method of completing the square to solve the equation:
His First Step is to: Take the Constant Term to the Right Hand Side
The Next Step Would be to:
- Divide the Coefficient of x by 2
- Square It
- Add it to both Sides
In this case, the Coefficient of x = 7
- Divided by 2 =
- Squaring It, we have:
It is this number that is added to both sides in the manner below:
The third one because each banner costs $16 and x is the number of banners, $32 is just a one time fee so there is no x.
<em>Here we are required to determine the initial monthly fee charged by the electric company.</em>
The initial fee charged by the electric company is; C = $10
To solve this, we need to evaluate the slope and intercepts of the equation of the straight line graph of the relation.
y = mx + c.
- where m = slope of the relation.
- and c = <em>intercept = the initial fee charged by the electric company</em>.
- y = <em>Monthly charge at each time</em>.
To find the slope;
By substituting m into the equation y = mx + c, alongside a pair of values of usage and monthly charge, we can obtain the intercept, c (i.e the initial fee charged).
Therefore, m = 0.12 , y = 82 and X = 600;
we then have;
Therefore, the initial fee charged by the electric company is; C = $10.
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The number of minutes that Josie will take is 80 minutes.
<u>Explanation:</u>
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Explanation:
Ratio of the number of minutes to the number of miles = 
Number of miles = 10
Number of minutes = ?
Let x be the number of minutes
According to the question,
Therefore, the number of minutes that Josie will take is 80 minutes.
Answer:
4a + 7 = SIMPLIFIED
4a = -7
a= -1.75 ANSWER OF EXPONENT IF NEEDED
