Pearson eText Linear Algebra and Its Applications -- Instant Access (Pearson+)
6th Edition
ISBN: 9780136880929
Author: David Lay, Judi McDonald
Publisher: PEARSON+
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Use the quadratic formula to find the zeros of the quadratic equation.
Y=3x^2+48x+180
M = log
The formula
determines the magnitude of an earthquake,
where / is the intensity of the earthquake and S is the intensity of
a "standard earthquake." How many times stronger is an
earthquake with a magnitude of 8 than an earthquake with a
magnitude of 6? Show your work.
Now consider equations of the form ×-a=v
= √bx + c, where a, b, and c
are all positive integers and b>1.
(f) Create an equation of this form that has 7 as a solution and
an extraneous solution. Give the extraneous solution.
(g)
What must be true about the value of bx + c to ensure that
there is a real number solution to the equation? Explain.
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