Answer:
Dominos is the better deal.
Answer:
J - Janeta's age M - mother's age
A) (J-5) = .2 * (M-5)
B) J = (1/3) * M
Subtracting 5 from both sides of B:
B) J -5 = (1/3)M -5
then we substitute the right side of this into the left side of A and we get
(1/3)M -5 = .2 M -1
.333333333333M -5 = .2M -1
.1111111111111111111M = 4
Mother's Age = 36
Janeta's Age = 12
Step-by-step explanation:
Answer:
x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction
Step-by-step explanation:
we know that
The formula to solve a quadratic equation of the form
is equal to
in this problem we have
so
substitute in the formula
therefore
x = StartFraction negative 2 plus or minus StartRoot 2 squared minus 4(4)(negative 1) EndRoot Over 2(4) EndFraction
I start with 1 friend on Facebook. Every month I find that the number of friends I have triples.
<span>Month 0 --> y = 3^0 = 1 friend </span>
<span>Month 1 --> y = 3^1 = 3 friends </span>
<span>Month 2 --> y = 3^2 = 9 friends </span>
<span>Month 3 --> y = 3^3 = 27 friends </span>
<span>... </span>
<span>Month t --> y = 3^t </span>
