A father's age is thrice the sum of the ages of his two children. After five years, his age will be
1 answer:
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Answer:
"To the nearest year, it would be about 9 years"
Step-by-step explanation:
11c)
This is compound growth problem. It goes by the formula:
Where
F is the future amount
P is the present (initial) amount
r is the rate of growth, in decimal
t is the time in years
Given,
P = 20,000
r = 8% = 8/100 = 0.08
F = double of initial amount = 2 * 20,000 = 40,000
We need to find t:
To solve exponentials, we can take Natural Log (Ln) of both sides:
Using the rule shown below we can simplify and solve:
We can write:
To the nearest year, that would be about 9 years
<h2>The "option d: 
+ 13x + 12" is a trinomial with a constant term.</h2>
Step-by-step explanation:
To check options:
a: x + 4y
Here, the coefficient of x = 1 and the coefficient of y = 4
b:
Here, the coefficient of = 1
c: + 3
+ 2y
Here, the coefficient of = 1, the coefficient of
= 4 and the coefficient of y = 2
d: + 13x + 12
Here, the coefficient of = 1, the coefficient of x = 13 and
constant term = 12
Thus, the "option d) + 13x + 12" is a trinomial with a constant term.