Y^2 - 10y + 16
the last sign in ur problem...the one before the 16..it is a +.....this means that both ur factors will have the same sign......the first sign...the one before the 10y is a -....this means that both ur factors will have a negative sign
now, we have to find 2 numbers, then when added = -10 and when multiplied = 16........-8 + (-2) = -10......-8 * -2 = 16....so ur numbers are -8 and -2
y^2 - 10y + 16
(y - 2)(y - 8) <===
This could be rephrased as:
You start with 100 grams of a substance. One year later you have 70 grams. What is the half-life?
We need this formula:
half-life = (time * natural log (2)) / natural log (beginning amount / ending amt)
half-life = (1 year * .69315) / natural log (100 / 70)
half-life = (.69315) / 0.35667494396
half-life = 1.9433661145 years
Rounding to nearest year half-life = 2 years
Sourse: https://www.1728.org/halflif2.htm
(See problem 3)
Answer:
Yes
Step-by-step explanation:
Dan used 2 and 6, and after 3 and 9. If you multiply 2×1.5 = 3, and 6×1.5 = 9, so the ratio is the same and is equal to 1.5
Answer:
35
Step-by-step explanation:
what you gotta do is multiply 5 * 7 to get 35