Answer:
y=10 when x=7
Step-by-step explanation:
y=2x-4
y=10
Substitute y with "10": 10=2x-4
Add 4 on both sides: 14=2x
x=7
<h3>
Answer: -2</h3>
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Explanation:
Plug in x = -1 to find that
f(x) = 2|x-1|
f(-1) = 2|-1-1|
f(-1) = 2|-2|
f(-1) = 2*(2)
f(-1) = 4
If you repeat for x = 1, you should find that f(1) = 0
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Now use the average rate of change formula below. Effectively, we're using the slope formula more or less.
The average rate of change on this interval is -2
This is the same as finding the slope through the points (-1, 4) and (1, 0).
Answer:
A
Step-by-step explanation:
We are given the two functions:
And we want to find:
Recall that this is equivalent to:
Substitute and evaluate:
In conclusion, our answer is A.
The answer is: B. 11
Explanation:
1. The area of a rectangle is:
Where is the length and is the width.
2. The length of the rectangular-shaped deck is 5 meters longer than its width, therefore:
3. You must substitute this into :
4. Now you must solve for the width. You can use the Quadratic formula, which is:
Where:
5. Subsitute values:
6. Then, the lenght is:
The answer would be 6.666666666666666666666666666 because 2/3=0.66.