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atroni [7]
3 years ago
12

can someone please show me where i went wrong in the following problem... use an appropriate local linear approximation to estim

ate the value of the given quantity. cos(31*)
Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
7 0
Y = cos(x) sqrt(3)/2 = cos(30º) dy = -sin(x)*dx dy = -sin(30º)*(pi/180) = (1/2)*(pi/180) y + dy = cos(x) - sin(x)dx y + dy = sqrt(3)/2 - (1/2)*(pi/180) = 0.8573
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Answer fast please and thanks!
Stella [2.4K]

Answer:

tan 30 = x / 15

General Formulas and Concepts:

<u>Trigonometry</u>

  • [Right Triangles Only] SOHCAHTOA
  • [Right Triangles Only] tanθ = opposite over adjacent

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

Angle θ = 30°

Opposite Leg = <em>x</em>

Adjacent Leg = 15

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Substitute in variables [tangent]:                                                                     tan 30 = x / 15

8 0
3 years ago
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olchik [2.2K]

Answer:

y= 6x -8

Step-by-step explanation:

<u>Slope-intercept form: </u>

y= mx +c, where m is the gradient and c is the y-intercept.

\boxed{gradient =  \frac{y1 - y2}{x1- x2} }

Gradient

=  \frac{4 - ( - 2)}{2 - 1}

= 6

y= 6x +c

To find the value of c, substitute the equation with a pair of coordinates.

When x= 1, y= -2,

-2= 6(1) +c

c= -2 -6 <em>(</em><em>-6</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>

c= -8

Thus, the equation of the line is y= 6x -8.

8 0
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Answer:

30

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Use the proportion of the bracelets

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Step-by-step explanation:

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263 x 0 = 0 so zero

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faltersainse [42]

Answer:

Answer:B

Step-by-step explanation:

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