Answer:
Step-by-step explanation:
According to the given statement two pieces are of same length:
If the length of one piece is x,
Then the length of other piece is also x.
And one piece is 2 feet longer than the other two = x+2
Total length of a board = 10 foot
Now make the equation from these terms:
x+x+x+2= 10
This is the equation of the given question.
You can further solve this equation:
x+x+x+2=10
3x+2=10
Now combine the constants:
3x=10-2
3x=8
x=8/3
x=2.67
It means that the length of two pieces of same length is 2.67
And the length of one piece which is longer than the other two = x+2 = 2.67+2 = 4.67 ....
Answer:
Step-by-step explanation:
The midpoint between two points is the average of the coordinates.
mp=((x2+x1)/2, (y2+y1)/2)
In this case we are given one end point and the midpoint.
Just look at the x coordinate first.
If the mid x is 8 and the x from j is 10 we have
(10+x)/2=8
10+x=16
x=6, now for the y for j when y=6 and mid y of 5
(6+y)/2=5
6+y=10
y=4
So the coordinates of K are (6,4)
Answer: 4000
Step-by-step explanation:
40(43+57)
40(100)
4000
Answer:
x=7
Step-by-step explanation:
Well the equation would be 14/x-2=0, which if let number=x, and solved for the equation, 14-2x=0, x=7.
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This is a strange question, and f(x) may not even exist. Why do I say that? Well..
[1] We know that f(a+b) = f(a) + f(b). Therefore, f(0+0) = f(0) + f(0). In other words, f(0) = f(0) + f(0). Subtracting, we see, f(0) - f(0) = f(0) or 0 = f(0).
[2] So, what's the problem? We found the answer, f(0) = 0, right? Maybe, but the second rule says that f(x) is always positive. However, f(0) = 0 is not positive!
Since there is a contradiction, we must either conclude that the single value f(0) does not exist, or that the entire function f(x) does not exist.
To fix this, we could instead say that "f(x) is always nonnegative" and then we would be safe.