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harkovskaia [24]
3 years ago
12

Name each polynomial by degree and number of terms. 1. 4x - 9 2. -5x^5 + 9x^3 - 4

Mathematics
1 answer:
jekas [21]3 years ago
6 0
1)4x-9 there are no like terms
 2)(<span><span>−x</span>+1</span>)<span>(<span><span><span><span><span>5<span>x4</span></span>+<span>5<span>x3</span></span></span>−<span>4<span>x2</span></span></span>−<span>4x</span></span>−4</span><span>)</span></span>
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Find all values of x (if any) where the tangent line to the graph of the given equation is horizontal. HINT [The tangent line is
Nostrana [21]
By "y = −9x2 − 2x" I assume you meant  <span>y = −9x^2 − 2x (the "^" symbol represents exponentiation).

Let's find the first derivative of y with respect to x:  dy/dx = -18x - 2.  This is equivalent to the slope of the tangent line to the (parabolic) curve.  Now let this derivative (slope) = 0 and solve for the critical value:  -18x - 2 = 0, or
-18x = 2.  Solving for x,   x = -2/18,    or    x = -1/9.

When x = -1/9, y = -9(-1/9)^2 - 2(-1/9).  This simplifies to y = -9/9 + 2/9, or 
y = -7/9.

The only point at which the tangent to the curve is horiz. is (-1/9,-7/9).</span>
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3 years ago
A book sold 35,600 copies in its first month of release. Suppose this represents 6.6% of the number of coples sold to date.
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Step-by-step explanation:

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3 years ago
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allochka39001 [22]

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What is the diamater of a circle with 14 in.​
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Step-by-step explanation:

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3 years ago
Factor each expression
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 1 -since everything includes 4a, we can factor that to get 4a(a-4b^3+2b^2c)
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3 - since -5 and -4 add to -9 and multiply to 20, we can do (g-5)(g-4)
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I got the numbers in 2, 3, and 4 with a guesstimating and checking approach
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3 years ago
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