On a game show, a contestant randomly chooses a chip from a bag that contains numbers and strikes. The theoretical probability o
2 answers:
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9514 1404 393
Answer:
lower left
Step-by-step explanation:
We notice that the answer choices have only the first equation changed. The equivalent of the first equation must have the same ratios of coefficients.
x-coefficient : y-coefficient : constant
= 2 : 1 : -15 . . . . . in the given equation
2 : -2 : 30 = 1 : -1 : 15 . . . upper left — not the same
-4 : -2 : -15 = 4 : 2 : 15 . . . upper right — not the same
-4 : -2 : 30 = 2 : 1 : -15 . . . lower left — same as the given equation
-4 : 1 : 30 = 4 : -1 : -30 . . . lower right — not the same
Let the first integer be . So, the next even number is
Let's translate the formula: the square of the second is , twice the first is
. So, the equation is
Expand the square to get
The solutions to this equations are
So, the possible consecutive even numbers are