How many answers does this equation have? 77-x=(77+x)*-1
2 answers:
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9514 1404 393
Answer:
see below
Step-by-step explanation:
Starting from the point-slope equation ...
y -y1 = m(x -x1)
Solving for y gives ...
y = mx +(y1 -m·x1)
So, the slope-intercept form equation is fairly easily found:
y = mx +b . . . . where m = m, and b = y1-m·x1
This is the equation we have used for 'b' in the attached spreadsheet.
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Of course, the formula for slope is ...
m = (y2 -y1)/(x2 -x1)
This is the equation we have used for 'm' in the attached spreadsheet. For all problems, we have used the first point. (It doesn't matter which point you use if there are two of them.)
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The second attachment is the Google Sheets spreadsheet saved in ODS format. Most spreadsheet programs should be able to open that so you can see the formulas, if you're interested. (The gray values of m are computed using the two points. The unshaded values of m are entered by hand.)
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I'll write a couple of equations in each group so you can see how the spreadsheet numbers relate:
y = mx +b
1. y = 2x -7
3. y = 2/3x +4
8. y = 1/3x -5
9. y = -5/2x +4
Answer:
The best approximation is the point
Step-by-step explanation:
we know that
Observing the figure
The x-coordinate of the relative maximum belong to the interval ---->
The y-coordinate of the relative maximum belong to the interval ---->
see the attached figure to better understand the problem
therefore
The best approximation is the point
Answer:
There are 6,151,600,000 different 7-place license plates are possible when 3 of the entries are letters and 4 are digits,
Step-by-step explanation:
For each of the entries which are letters, there are 26 possible outcomes.
For each of the entries which are digits, there are 10 possible outcomes.
These outcomes can be permutated.
For example, ABC1234 is a different outcome than A1B2C34. This means that we need to use the permutations formula.
The number of permutations of n, divided into two groups of size a and b, is:
.
In this problem, we have a permutation of 7, divided into a group of 4(digits) and 3(letters).
How many different 7-place license plates are possible when 3 of the entries are letters and 4 are digits?
This is
There are 6,151,600,000 different 7-place license plates are possible when 3 of the entries are letters and 4 are digits,