3 years ago

B/4 +2 = -1 what is the value of b

Mathematics

1 answer:

trapecia [35]3 years ago

7 0

Answer:b= -12

Step-by-step explanation:

b/4 + 2 = -1

First subtract 2

b/4 = -3

Then multiply by 4

b= -12

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Step-by-step explanation:

$L\left( x \right) = f\left( a \right) + f'\left( a \right)\left( {x - a} \right)$

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Since we have three variables,

$L(x, y,z) = f(a, b,c) + f_x (a, b,c) (x - a) + f_y (a, b,c) (y - b) +f_z(a,b,c)(z-c)$

$f(4, 4, 7) = 4^2+4^2+7^2=81$

$f_x (a, b,c)=2x=2*4=8\\f_y (a, b,c)=2y=2*4=8\\ f_z(a,b,c)=2z=2*7=14$

Therefore:

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The approximation of $4.02^2 + 3.99^2 + 6.97^2$ is 80.66000.

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