First, you want to get x by itself on one side. We write the equation as
. Since 14 is being subtracted from
, we add it to both sides to cancel it out,
or
.
Your answer would be D.
5/9 to chose odd card, 3/6 to roll even number
Answer:
x=4
Step-by-step explanation:
√x+12=x
x+12=x2(Square both sides)
x+12=x2
x+12−x2=x2−x2(Subtract x^2 from both sides)
−x2+x+12=0
(−x−3)(x−4)=0(Factor left side of equation)
−x−3=0 or x−4=0(Set factors equal to 0)
x=−3 or x=4
x=−3(Doesn't work in original equation)
x=√x+12
Answer:
13,440
Step-by-step explanation:
10 possible digits 0 - 9
5 possible numbers for position 5 (odd digits only)
8 possible numbers for position 1 (cannot be zero or the odd number selected for position 5)
8 possible numbers remain for position 2 (10 minus 2 already selected)
7 possible numbers remain for position 3 (10 minus 3 already selected)
6 possible numbers remain for position 4 (10 minus 4 already selected)
5•8•8•7•6 = 13,440
