Answer:
r = -1
Step-by-step explanation:
This is the answer because:
1) You can take the root of both sides and solve
2) You can also isolate the variable and solve for it
1. r9 + 1 = 0, divide 9 and 0 first. 9 x 0 = 0
2. r + 1 = 0, subtract 0 and 1. 0 - 1 = -1
Hope this helps!
Answer:
$400
Step-by-step explanation:
The formula for simple interest is i = p * r * t, where r is the annual interest rate as a decimal fraction, p is the principal and t is the time in years.
Here we want to determine what the principal was. Solving the above equation for p, we get:
i $64
p = --------- = -------------- = $400
r * t (0.08)(2)
Ok
6+1=7
if only we could find 1
hmm
4+1=5
so mark a starting line
put the 4 inch and 5 inch wood at that line, facing the same direction (lying flat on paper)
the difference between the pieces of wood is 1 inch
mark the end of the 5 inch and the end of the 4 inch
that is 1 inch
now pick either end of that 1 inch mark and measure 6 inches more
Given the following points:
(1, 4): (2, 2.5): (3, 1) and (4, -0.5).
We are asked to find the average rate of change of the sequence.
The average rate of change for the sequence is the slope and it can be solved using the slope formula.
Slope (m) = y2 - y1
x2 - x1
So, lets choose two points on the line and substitute into the formular.
(1, 4) and (2, 2.5)
where:
x1 = 1
x2 = 2
y1 = 4
y2 = 2.5
m = 2.5 - 4
2 - 1
m = -1.5/1
m = -1.5
m = -1 1/2
Therefore, the correct option is the second option.
Answer:

Step-by-step explanation:

