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mr Goodwill [35]
3 years ago
6

F(x)=-2x^2+4x+5 Find the critical numbers

Mathematics
1 answer:
frez [133]3 years ago
6 0

Answer:

To find critical points, take the first derivative and set it equal to zero:

f(x) = -2x^2 + 4x + 5

f'(x) = -4x + 4

-4x+4 = 0

-4x = -4

x = 1

Critical point at x = 1

Alternatively, if you mean zeros, or where the x intersects, you can use the quadratic equation.

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(x+2)(x+3)

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4 years ago
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6 0
3 years ago
Hi i need help please
Likurg_2 [28]

Answer:

28

Step-by-step explanation:

16 Ada to eves house

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28

7 0
3 years ago
Read 2 more answers
Need help fast don't understand both A and B show work please
Shkiper50 [21]
Problem A
Usually the number of bits in a byte is 8 or 16 or 32 and recently 64. You don't have to write a formula to restrict it to this number of bits. You are not asked to do so. The general formula is 2^n - 1 for the problem of Millie and her golden keys. Somehow the system can be made to choose the right number of bits. Apple IIe s for example, used 8 bits and there was a location that told the processor that fact.

2^n - 1 <<<<< Answer

Problem B
In this case n = 4
2^n - 1 = 2^4 - 1 = 16 - 1 = 15


Millie can collect 15 keys <<<<<< Answer
5 0
4 years ago
The height of the cylinder is 25 inches and the radius of its base is 5 inches. What is the surface area of this cylinder, in te
Vikentia [17]

ok you need formula for surface area.

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SA = 2π(5)(25)+2π(5)^2

SA = 10pi*25 + 2pi(25)

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SA = 300pi

Hope this helps :)

Jeron

4 0
2 years ago
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