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laiz [17]
3 years ago
12

How do I find the critical points?

Mathematics
1 answer:
podryga [215]3 years ago
5 0
Critical points is where the derivative (slope) is zero or does not exist. So to do this we have to find the derivative of our function:

\frac{d}{dx}(x^{2} - 1)^{3}

So we apply chain rule:

= 3(x^{2} - 1)^{2} * 2x

Set our first derivative to zero and solve for x:

3(x^2 - 1) * 2x = 0

So we can see that (by plugging in) 0, -1 and 1 makes our solution true

So our critical value is x = 0, x = -1, x = 1
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Mort bought his house in 2004 for $279,000. it was recently appraised at $186,000. What is the approximate percent of decrease i
Natalka [10]

Answer:

33.3%

Step-by-step explanation:

(279,000 - 186,000) / 279,000 = 0.33333333333

0.33333333333*100= 33.3333333333

Formula used:

V_{2} -V_{1} / V_{2} × 100

V2= 279,000

V1= 186,000

7 0
3 years ago
The base sales tax rate in Florida is 6%,
Slav-nsk [51]

Answer:

$18.43

Step-by-step explanation:

19.61 decrease 6% =

19.61 × (1 - 6%) = 19.61 × (1 - 0.06) = 18.4334

5 0
2 years ago
On Monday night Eli ate 1/2 of a pizza. On Tuesday night, Eli ate 1/4 of a pizza. How much pizza did he eat altogether
-BARSIC- [3]

Answer:

Eli ate 3/4 of the pizza

Step-by-step explanation:

1/2 = 2/4

2/4 + 1/4 = 3/4

5 0
2 years ago
Read 2 more answers
Given: f(x) = 3x2 + 2x – 1
denis-greek [22]

Answer:

84

Step-by-step explanation:

f(x) = 3x^2 + 2x – 1

Let x=5

f(5) = 3(5)^2+2(5) -1

     = 3*25 +10-1

    = 75+10 -1

    = 85 -1

4 0
3 years ago
If the discriminant of a quadratic equation is equal to -8, which statement describes the roots?
sp2606 [1]

Answer:

Step-by-step explanation:

A discriminate of -8 is never going to give you a real root. D is wrong

You cannot have just 1 complex root, nor can you have just 1 real root unless the discriminate is 0. A and C are both wrong for the same reason. 1 complex root is impossible. They come in pairs.

So the answer is B. You have 2 complex roots.

7 0
3 years ago
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