9514 1404 393
Answer:
8. 4 +2q²/p² -4r/p +r²/p²
9. (x, y) = (3/4, -17/8)
Step-by-step explanation:
All of these questions are asking you to make use of the fact that ...
α + β = -q/p
αβ = r/p
__
8. (2 +α²)(2 +β²) = 4 + 2(α² +β²) +α²β²
= 4 +2((α+β)² -2αβ) +(αβ)²
Substituting the above for the sum and product, you have ...
= 4 + 2((-q/p)² -2(r/p)) +(r/p)²
= 4 +2q²/p² -4r/p +r²/p²
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9. This is asking for the vertex of the parabola. The x-coordinate is ...
x=-b/(2a) = -(-3)/(2(2) = 3/4
Then the y-coordinate is ...
y = (2(3/4) -3)(3/4) -1 = (-3/2)(3/4) -1 = -9/8 -1 = -17/8
The (x, y) values of interest are (3/4, -17/8).
Step-by-step explanation:
are your sure about the question you sent
he sayin n to the infinite and there is no n in the F(n) so its x+5x
if you mean x to the infinite
the answer will be infinite
hopefully its correct
Her balance was $4 at the end of the week
Answer:
The number of packages of gift wrap and greeting cards sold is 181 and 44 respectively
Step-by-step explanation:
The computation of the number of packages of gift wrap and greeting cards sold is as follows:
Let us assume the number of packages of gift wrap be x
And, for greeting cards be y
The equation are as follows
x + y = 225 ..................(1)
We can write as
y = 225 - x
4x + 10y = $1,164 ............(2)
Now put the y value in the equation 2
4x + 10 (225 - x) = $1,164
4x + $2,250 - 10x = $1,164
-6x = $1,164 - $2,250
-6x = -$1,086
x = 181
And, y = 225 - 181
= 44
Answer:
B.
Step-by-step explanation:
The values for g(x) divert after the point -1.
So, the values are going to be equal or greater than -1.