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poizon [28]
3 years ago
7

Use implicit differentiation to find an equation of the tangent line to the curve at the given point.

Mathematics
1 answer:
kenny6666 [7]3 years ago
5 0
Hello:
Use implicit differentiation :  <span>y sin 12x = x cos 2y
y' sin12x+12ycos12x =cos2y -2x y'sin2y
when : x = </span>π/2  and     y =π/4<span> 

</span>y' sin12(π/2) +12(π/4)cos12(π/2) =cos2(π/4) -2(π/2) y'sin2(<span>π/4)
</span>y' sin(π/6) +(π/3)cos(π/6) =cos(π/2) -  π y'sin(π/2)


y' (1/2) +(π/3)(√3/2) = -  π 

y' (1/2) =-(π/3)(√3/2)  -  π 
y'  = -π (1+√3)/3
an equation of the tangent line is : y- π/4 = ( -π (1+√3)/3)(x-<span>π/2)</span>
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5 hours 22 minutes

Step-by-step explanation:

Let us represent the number of hours that Jeri worked as: h

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= $4.50 + $3 × h

= $4.50 + 3h

If she is asked to start before 7 a.m. Jeri charges 1.5 times the regular amount.

= 1.5 × ($4.50 + 3h)

If she made $29.25 on a job that began at 5 am, how many hours did Jeri work?

Hence, we have the final equation;

= 1.5 × ($4.50 + 3h) = $29.25

= 6.75 + 4.5h = 29.25

Collect like terms

= 4.5h = 29.25 - 6.75

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h = 22.5/4.5

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1 hour = 60 minutes

0.36 hour =

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To find how much lemon juice for 36 cups of water, just divide 36 by 3 to get 12. 12 servings of lemon juice is just right for your 36 cups of water.

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