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3 years ago

Wdqw lw9*4 l=24 w=36

Mathematics

1 answer:

Dmitrij [34]3 years ago

8 0

I believe the answer would be 31105

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F(x)=−7x^2 −x and g(x)=9x^2 −4x , find (f−g)(x) and (f−g)(1)

givi [52]

Answer:

f(x) = -7x² - x

g(x) = 9x² - 4x

To find ( f - g)(x) subtract g(x) from f(x)

That's

( f - g)(x) = - 7x² - x - ( 9x² - 4x)

= -7x² - x - 9x² + 4x

Group like terms

( f - g)(x) = - 7x² - 9x² - x + 4x

To find (f - g)(1) substitute 1 into ( f - g)(x)

That's

(f - g)(1) = - 16(1) + 3(1)

= -16 + 3

Hope this helps you

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3 years ago

What is decimal of 78

Darina [25.2K]

0.78 would be decimal form for 78%

7 0

3 years ago

If you could help I would really appreciate it, but if not that’s fine. Thank you.

Gre4nikov [31]

Since -1 is less than or equal to -1 you input it into the first equation.

-3•(-1) -4
3-4
-1

the answer is -1 good luck

7 0

3 years ago

6900 dollars is placed in an account with an annual interest rate of 8.25%. How

iragen [17]

$7,469.25 but I’m not 100% sure if that’s correct.

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3 years ago

Consider the following points.

horrorfan [7]

Answer:

(a) $P(x)=0.4x^{3} +2x^{2} -1.4x$

(b) $P(x)=x^{4} -x^{3} +5x^{2} -7x-14$

Step-by-step explanation:

Let´s use Divided Differences Method of Polynomial Interpolation given by this iteration:

$f[x_k,x_k_+_1,...,x_k_+_i]=\frac{f[x_k_+_1,x_k_+_2,...,x_k_+_i]-f[x_k,x_k_+_1,...,x_k_+i_-_1]}{x_k_+_i-x_k}$

k∈[0,n-i]

Thus the Newton polynomial can be written as:

$P_n_-_1(x)=f[x_0]+f[x_0,x_1](x-x_0)+f[x_o,x_1,x_2](x-x_0)(x-x_1)+...+f[x_n,x_n_-_1,...,x_1](x-x_n)(x-x_n_-_1)...(x-x_1)$

(a) I attached you the procedure in the first table, using it we have:

$P(x)=3+(-3)(x+1)+(2)(x+1)(x)+0.4(x+1)(x)(x-1)$

Operate P(x) using the distributive property:

$P(x)=0.4x^{3} +2x^{2} -1.4x$

(b) I attached you the procedure in the second table, using it we have:

$P(x)=44+(-44)(x+2)+(15)(x+2)(x+1)+(-3)(x+2)(x+1)(x)+(1)(x+2)(x+1)(x)(x-1)$

Operate P(x) using the distributive property:

$P(x)=x^{4} -x^{3} +5x^{2} -7x-14$

6 0

3 years ago

Wdqw l*w*9*4 l=24 w=36

Wdqw lw9*4 l=24 w=36