Answer:
1
Step-by-step explanation:
9-3x3+1
9-9+1
=1
Anderson could provide 0.5x2 + 4x + 8 = 0 has exactly one real root if the discriminant is 0,
<h3>What is quadratic equation?</h3>
Any equation that can be rewritten in standard form as where x represents an unknown, a, b, and c represent known numbers, and where a 0 is true is a quadratic equation. As there is no ax2 term when a = 0, the equation is linear rather than quadratic.
<h3>What is discriminant?</h3>
A polynomial's discriminant is a quantity that depends on the coefficients and enables for some root attributes to be inferred without actually computing them. It is actually a polynomial function of the original polynomial's coefficients.
<h3>According to the given information:</h3>
0.5x^2 + 4x + 8 = 0
The discriminant is computed utilizing:
d = b^2 - 4ac
Thus, we have:
d = 4^2 - 4 * 0.5 * 8
Evaluate
d = 0
The equation has only one real root since the discriminant is 0,
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Answer:
Reserved seats tickets = $20
General admission tickets = $12
Step-by-step explanation:
From the above question:
Let us represent
Reserved seats tickets = R
General admission tickets = G
Reserved seat tickets for a concert cost $8 more than general admission tickets. Hence,
R = G + 8
Five reserved seat tickets and 3 general admission tickets cost at total of $136. Hence,
5R + 3G = 136
So, we substitute G + 8 for R in the equation above
5(G + 8) + 3G = 136
5G + 40 + 3G = 136
5G + 3G = 136 - 40
8G = 96
Divide both sides by 8
8G/8 = 96/8
G = 12
Therefore the cost of one General admission ticket = $12
Since R = G + 8
R = $12 + $8
R = $20
Therefore, the cost of the reserved seats tickets = $20
Ok first take out the GCF which is 3 in this case.
<span>6x^2+7x+2=0
(3x+2)(2x+1)=0
3x+2 = 0; x = -2/3
2x+1 = 0; x = -1/2
answer
x = -1/2 and x = -2/3</span>