In the equation, y = x^2 - a, a is a positive constant and the graph of the equation in the xy plane is a parabola. Which of the following is an equivalent form of the equation? 1. y = (x+a)(x-a)
2. y = (x+a/2)(x-a/2)
3. y = (x+a)^2
4. y = (x+sqrt(a))(x-sqrt(a))

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

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you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

a reflection across the x axis and a 90 degree rotation left and right.