I'm just going to take a chance and say 1.A, and 2.D.
Answer:
How long was the ribbon before it was cut?
Step-by-step explanation:
Answer:
There will be $634.05 in the account.
Step-by-step explanation:
Compound interest:
The compound interest formula is given by:
Where A(t) is the amount of money after t years, P is the principal(the initial sum of money), r is the interest rate(as a decimal value), n is the number of times that interest is compounded per year and t is the time in years for which the money is invested or borrowed.
$390 in an account paying an interest rate of 2.7% compounded daily.
This means that 
Assuming no deposits or withdrawals are made, how much money, to the nearest cent, would be in the account after 18 years?
This is A(18). So
There will be $634.05 in the account.
It's a quadratic equation. Solve it through factorisation.
5s^2 - 14s - 3 = 0
(5s + 1)(s - 3) = 0
5s + 1 = 0
or
s - 3 = 0
Therefore
s = -1/5
or
s = 3
Answer:
c) f(x)=3x+1
Step-by-step explanation:
the graph of this function, g(x), is y=3x-1, we know this because the slope is 3 and the y intercept is -1.
finding slope:
subtract the y values and x values and then divide.
y2-y1/x2-x1=2+1/1-0
=3/1
slope=3
finding the y intercept:
more of a visual task, find where the line intersects on the y axis. in this case, it is at -1
plug it in:
next all you have to do is plug this into slope intercept form (y=mx+b), where m is slope and b is y intercept.
y=3x-1
making f(x) from g(x):
all you have to do is add 2 to the y intercept because the question says f(x) is 2 units above g(x).
y=3x-1+2
<em>y=3x+1</em>
hope this helps!
