3-3x6+2= what is the right answer?
1 answer:
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Answer:
B
Step-by-step explanation:
x² + 9x
to complete the square
add ( half the coefficient of the x- term )² to x² + 9x
= x² + 2( )x + (
)²
= x² + 9x + ← the value of c
= (x + )² ← a perfect square
Answer:
4/35 lottery is easier to win.
Step-by-step explanation:
For the 5/48 lottery, the winning probability is ≈0.1042
For the 4/35 lottery, the winning probability is ≈ 0.1143
Since >
, the lottery where one chooses 4 of the numbers 1 through 35 is easier to win.