Answer:
7.6(<em>a</em>+<em>b</em>) A.
8.205-2<em>d</em> D.
9. 0.05<em>n</em>+0.10<em>d</em>+0.25<em>q</em>=10 B.
Weight of the dog in question = 44 pounds
Amount of weight the dog needs to reduce as per the veterinarian = 7 pounds
Let us assume the new weight of the dog in question = x
Then
44 - x = 7
This equation can also be represented as
x + 7 = 44.
So from the above deductions we can say that 44 - x = 7 is the correct equation. Another equation to represent the situation given in the question is x + 7 = 44
Remark
Are you sure you don't mean that (x - 7) is squared? The way you have written it indicates that it is squared. I'll treat it that way and you can leave a not if I am wrong.
Solution
(x - 7)^2 - 25 = 0 Add 25 to both sides
(x - 7)^2 - 25 + 25 = 25 Combine the left
(x - 7)^2 = 25 Take the square root of both sides.
sqrt(x - 7)^2 = sqrt(25)
x - 7 = +/- 5 Add 7 to both sides
x = 7 +/- 5
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x1 = 7 + 5
x1 = 12
x2 = 7 - 5
x2 = 2
Smallest x = 2
Largest x = 12
If a and b are supplements, their total is 180 degrees, by definition. If b and c are supplements, their total is 180 degrees, by definition.
