How do I solve this math problem?

Mathematics

2 answers:

blondinia [14]2 years ago

8 0

Subtract 1 from both sides of the equal sign. (3-11 and 11-11) So, now you only have -8 = 1/2b ... Next, divide 1/2 from both sides (because you need to make the variable, b, be the only thing on one side of the equal sign) and you get -4 = b . So, your answer is -4.

Alina [70]2 years ago

6 0

You would subtract 11 on both sides of the equation.
Then multiply the reciprocal of 1/2 which is 2.
And you should get -16 as your answer

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<h3>How to calculate the directional derivative of a multivariate function</h3>

The directional derivative is represented by the following formula:

$\nabla_{\vec v} f = \nabla f (r_{o}, s_{o})\cdot \vec v$ (1)

Where:

$\nabla f (r_{o}, s_{o})$ - Gradient evaluated at the point $(r_{o}, s_{o})$ .
$\vec v$ - Directional vector.

The gradient of $f$ is calculated below:

$\nabla f (r_{o}, s_{o}) = \left[\begin{array}{cc}\frac{\partial f}{\partial r}(r_{o},s_{o}) \\\frac{\partial f}{\partial s}(r_{o},s_{o}) \end{array}\right]$ (2)