Answer:
The zeros of the function are -0.488 and -7.39
Step-by-step explanation:
Given the quadratic function
f(x) = 2x²+16x-9
The zeros of the function is gotten at when f(x) = 0
2x²+16x-9 = 0
Using the general equation
x = -b±√b²-4ac/2a
From the equation, a = 2, b = 16 and c= -9
x = -16±√16²-4(2)(-9)/2(2)
x = -16±√256-72/4
x = -16±√184/4
x = -16+13.56/4
x = -16+13.56/4 and -16.13.56/4
x = --2.44/5 and -29.56/4
x = -0.488 and -7.39
The answer is 4
This is because |-5+9|=|-4| which equals 4
Answer:
$22
Step-by-step explanation:
The computation of the amount spent is shown below:
Since in the question it is mentioned that if you bought 2 than you got one bottle free
And, each bottle cost is $5.50
Now if you want 6 bottles so you have to spend tour 4 bottles to avail the offer
= 4 × $5.50
= $22
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Answer:
x=1y
Step-by-step explanation:
