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pogonyaev
3 years ago
13

Polygons. Find the measure of x

Mathematics
1 answer:
Eddi Din [679]3 years ago
8 0

your picture is not showing up for me

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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>
6 0
3 years ago
After a 7.5% tax Tom paid $30.09 for a new hat what is the price of the hat before tax
nekit [7.7K]

Answer:

$27.83

Step-by step explanation:

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3 years ago
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anyanavicka [17]

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2 years ago
Consider the functions shown below.
I am Lyosha [343]

Answer: D

<u>Step-by-step explanation:</u>

A. False

f(x): x → -∞, y → -∞

g(x): x → -∞, y → 1  

B. False

at x = -1, f(x) = -7

at x = -1, g(x) = 1.5

C. False

refer to A

g(x) → 1 and f(x) → -∞   so g(x) > f(x)

D. TRUE

It is hard to tell from the graph so plug in a value to check.

f(10) = 5(10) - 2

       = 50 - 2

       = 48

g(10) = 2¹⁰ + 1

        = 1024 + 1

        = 1025

g(10) > f(10)

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3 years ago
on november 14, 1993, francisco feraras read a record depth for breath held diving. during the dive, experienced a pressure of 2
Arlecino [84]
31 i think is right...

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3 years ago
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