Answer:
I'm pretty sure the slope is 5/4
Step-by-step explanation:
When you graph (-8,-7) and (-4,-2) you use rise/run to find the slope.Which is essntially counting up and the over from the first point to the second. Or you can use the equation of slope. Which is y1-y2/x1-x2.
Answer:
5 2.9
Step-by-step explanation:
Question 2: D
Question 1: C
Question 3: B
Question 4: C
Answer:
The answer is 4r² – 9
Denise answer is correct.
Step-by-step explanation:
One of the methods of solving the given equation [(2r – 3)(2r + 3)] is the FOIL method
Using the FOIL method (Used for multiplying binomials)
F stands for first
O stands for outer
I stands for inner
L stands for last
In this method, it means we will first multiply the first terms followed by multiplying the outer term, then multiplying the inner terms and finally, the last terms.
So, for the equation (2r – 3)(2r + 3)
First : (2r)(2r) = 4r²
Outer : (2r)(+3) = 6r
Inner : (–3)(2r) = – 6r
Last : (–3)(+3) = – 9
Adding the results we get
4r² + 6r – 6r – 9 (+6r and – 6r cancels out)
= 4r² – 9
∴ (2r – 3)(2r + 3) = 4r² – 9
Hence, Denise answer is correct
<u>Answer</u>:
The resale value after three years = $ 632.8125
<u>Explanation</u>:
Given the laptop purchase for $1500
Therefore, the cost price = $1500
According to the question, the resale value decreases by 25%,
Then after three years, the resale value is
Resale Value = 
Substituting the values,
Resale Value = 
Resale Value = 
Resale Value = 
Resale Value = $632.8125
Therefore, the resale value after three years = $ 632.8125
