Answer:
3
Step-by-step explanation:
The value of "a" is the coefficient of x^2, so we know that is 2.
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<u>Solve for h</u>
Now, we have ...
2x^2 -8x +7 = 2(x -h)^2 +k
Expanding the right side gives us ...
= 2(x^2 -2hx +h^2) +k
= 2x^2 -4hx +2h^2 +k
Comparing x-terms, we see ...
-4hx = -8x
h = (-8x)/(-4x) = 2
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<u>Solve for k</u>
Now, we're left with ...
2h^2 +k = 7 = 2(2^2) +k = 8 +k
Subtracting 8 we find k to be ...
k = 7 -8 = -1
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And the sum of constants a, h, and k is ...
a +h +k = 2 +2 -1 = 3
The sum of the constants is 3.
Answer:
The answer to your question is 1/5
Step-by-step explanation:
Data
-2, -1 4/5, -1 3/5, -1 2/5
Process
- Substract two continuos numbers
- 2 - (-1 4/5) = -2 + 1 4/5
= -2 + 9/5
= (-8 + 9) /5
= 1/5
- Check with another pair
-1 3/5 - (-1 2/5) = -8/5 + 7/5
= 1/5
Conclusion
The difference between the points is 1/5
Multiply the equations to get the coefficients Greatest Common Factor:
3(2x+4y=11)
2(3x+6y=17)
6x+12y=33
6x+12y=34
Then you subtract them:
0x+0y=-1 0=-1
Or in other words no solutions
