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maks197457 [2]
3 years ago
7

Let f(x) be a polynomial function such that f(−4)=−5,f′(−4)=0 and f′′(−4)=1. classify the point (−4,−5).

Mathematics
1 answer:
svet-max [94.6K]3 years ago
3 0
THis will be  the coordinates of the point  at a turning point on the graph.

Since the second derivative  is positive (=1)  it will be a minimum value of f(x).
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a uniform path of width 2m surrounding a pool 20m×16m is to be paved with marbels of side 10cm ×8cm each. if marble cost Rs 5 fi
Mekhanik [1.2K]
First you have to figure out the area of the pool and the path together:

(20m + 2m)*(16m + 2m) = 22m * 18m = 396m^2

When you now subtract the area of the pool from the whole area, you'll get the area of the path:

396m^2 - (20m * 16m) = 396m^2 - 320m^2 = 76m^2 => area of the path

Next step is to figure out the area of one tile:

0,1m * 0,08m = 0,08m^2

Last step is to figure out, how many tiles fit in 76m^2:

76m^2 / 0,08m^2 = 950

costs: 950 * Rs 5 = Rs 4750
4 0
3 years ago
Really need help on these two math questions ??
Aloiza [94]
F(5)-f (1)/5-1 gives avg over the interval
7 0
3 years ago
Find an equation with a solution of x = 2 of multiplicity 1 , and a solution of x = − 1 of multiplicity 2 .
luda_lava [24]

We want to find an equation for the given solutions and the multiplicity of each solution.

The equation is:

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

First, assume that we have a given equation and we know that we have solutions {x₁, x₂, ..., xₙ}, each one with multiplicity {m₁, ..., mₙ}.

The equation, of a polynomial that meets these requirements, is given by:

0 = A*(x - x_1)^{m_1}*...*(x - x_n)^{m_n}

Where A is the leading coefficient and can be any real number.

Now that we know that, here we have the solutions:

  • x = 2 with multiplicity 2
  • x = -1 with multiplicity 2

We don't have information about the leading coefficient, so we assume it is equal to 1.

Then the equation is:

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

If you want to learn more, you can read:

brainly.com/question/11536910

7 0
3 years ago
Please help!!! asap! ( 10 points)
Lubov Fominskaja [6]

Answer:

a. true: 3    false: -5

b. true: 9    false: 2

c. true: 1/3  false: 1

d. true: 2    false: 3

I hope this helps!

3 0
3 years ago
Determine where the function is increasing, decreasing, and constant.
Rama09 [41]

Answer:

Step-by-step explanation:

How does y change as x increases over a range?

As x increases from -6 to -4, y decreases from 0 to -7

It is a decreasing function in this range and for ranges less than x = -6 as well as the slope is nearly constant

As x increases from -4 to 0, y increases from -7 to 4

It is an increasing function in this range.

For x increasing from zero, y becomes less and less

It is a decreasing function in the range larger than x = 0

8 0
2 years ago
Read 2 more answers
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