<h3>
Answer: You have the correct answer. It's choice A. </h3>
Explanation:
You can verify this by plugging each root into the equation.
So for instance, plug in x = -2 and we get
f(x) = -3*(x+2)*(x-sqrt(3))*(x-4)
f(-2) = -3*(-2+2)*(-2-sqrt(3))*(-2-4)
f(-2) = -3*(0)*(-2-sqrt(3))*(-2-4)
f(-2) = 0
This verifies x = -2 is a root.
All that matters is that zero buried in there in the second to last step. Multiplying 0 by anything leads to 0. The other roots are verified in the same manner. The -3 out front is the leading coefficient.
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Extra info:
- Choice B is eliminated because (x+3) being a factor implies that x = -3 is a root. But this isn't listed in the instructions.
- Choice C is a similar story to choice B
- Choice D is eliminated since -sqrt(3) is not one of the listed roots, so (x+sqrt(3)) is not a factor.
28,800 seconds =3 workers
9,600=1
So
9,600(5)=48,000
48,000/60=800 minutes
Or
800/60=13.333 hours
Create and solve an equation of ratios:
15 lb 8 lb
--------- = ------
9 min x
Then 15x = 72, and x = 4.8 (minutes) (answer)
A lost camel or <span>a humpback mountain. a camel fallen off the airplane in transfer to iceland.</span>
Answer:
a=11,b=7
Step-by-step explanation:
To get to the result we firs multiply the figures on the left hand side.
multiplication of each term with its similar term is shown:
5×-4=-20
x⁷ₓx⁴=x¹¹. Here we add the powers because we are multiplying indices to the same base.
y²ₓ y⁵= y⁷
Thus the correct answer is a=11 and b=7