3 years ago

Observe the Function Below. f(x) = -8x2 + 7x3 + 2x – 5 Is the function a polynomial?

Mathematics

1 answer:

marshall27 [118]3 years ago

4 0

Answer:

Step-by-step explanation:

f(x) = -8x² + 7x³ + 2x - 5

= 7x³ - 8x² + 2x - 5 This meets the definition of a polynomial

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tigry1 [53]

Common ratio = 6/3 = 2

10th term

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= 1536

5 0

4 years ago

Suppose the cost of publishing x books is C(x) = 10000 + 25<img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" ti

dusya [7]

Answer:

$\frac{dC}{dQ} \approx 1.25$ , $C(101)-C(100) = 1.247$ , $\delta = 0.24\,\%$

Step-by-step explanation:

The marginal cost function is:

$\frac{dC}{dQ} = 12.5\cdot x^{-\frac{1}{2} }$

The marginal cost for 100 books is:

$\frac{dC}{dQ} \approx 1.25$

The difference is:

$C(101)-C(100) = 25\cdot (101^{\frac{1}{2} }-100^{\frac{1}{2} })$

$C(101)-C(100) = 1.247$

The relative error is:

$\delta = \frac{|1.25-1.247|}{1.25}\times 100\,\%$

$\delta = 0.24\,\%$

6 0

3 years ago

A new curved screen TV costs $3,508.80. A family makes a down payment of $450 and pays off the balance in 24 equal monthly payme

77julia77 [94]

Answer:

$127.45

Step-by-step explanation:

First, subtract 450 from 3,508.80:

3,508.80 - 450 = 3058.8

Then, divide this by 24 to find the monthly payment:

3058.8/24

= 127.45

So, the monthly payment was $127.45

5 0

3 years ago

Factorise this expression 14a+49 with brackets

12345 [234]

Answer:

7(2a +7)

Step-by-step explanation:

$14a+49\\=7\times 2a+7\times 7\\= 7(2a +7)$

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3 years ago

Pls help this is important ty <3

Gnoma [55]

Graph it on the bottom 4

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2 years ago

Observe the Function Below. f(x) = -8x2 + 7x3 + 2x – 5 Is the function a polynomial?​

Observe the Function Below. f(x) = -8x2 + 7x3 + 2x – 5 Is the function a polynomial?