Answer: y= (x+2)² −
5
Step-by-step explanation:
The way I got this answer is by completing the square. The first step though, when looking at this equation, is to see if we can factor it. The way to check is to look at the coefficient for x² which is 1, and the constant, in this case -1. If we multiply those together, we get −. Now we look at the middle term, 4x. We need to find any numbers that multiply to equal − 1x² and add to 4x. There aren't any, which means it is not factorable.
Hope I helped
Answer:
1/3
Step-by-step explanation:
Since there are three option for Player A to choose which are
Rock , Paper , Scissors
The probability he choose paper is 1/3 , because
there are total three options so the denominator is the total number of outcomes which are 3, and the numerator is the outcome he choose which is paper it means he chooses one outcome so hence the probability of Player A choosing paper is 1/3
Given that the rate of Uranium decay is 57%, this means that after each day, only 0.43 of the mass from the prior day is left. The equation that would best represent the scenario is,
a(t) = a₁(0.43^t)
where a(t) is the mass after t days and t is the number of days. Substituting,
a(t) = 3,280(0.43^15)
= 0.01 lbs.
