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Sergio [31]
3 years ago
15

Write an equation of the direct variation that includes the point (9, –12).

Mathematics
1 answer:
Crank3 years ago
5 0
For direct variation:
y = kx
-12 = 9k
k = -12/9 = -4/3
Therefore, the required equation is y = -4/3 x
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Answer:

After 6 months, the interest generated by the investment would be $21.10.

Step-by-step explanation:

To determine the interest that Preston McCord could earn by investing $ 1,400 in an account that pays 3.2% annual interest compounded monthly, leaving said money invested for a period of 6 months, it is necessary to perform the following calculation:

X = 1,400 x (1 + 0.032 / 6) ^ 0.5x6

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Draw a double number line to solve the following problem.
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3 years ago
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Step-by-step explanation:

<em>Set 1:</em>  12, 8, 6, 4, 10,1

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<em>Set 3: </em>30, 16, 49, 25

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Sorry I was late to answer your question, but hope it helps!

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Use implicit differentiation to find an equation of the tangent line to the curve at the given point.
kenny6666 [7]
Hello:
Use implicit differentiation :  <span>y sin 12x = x cos 2y
y' sin12x+12ycos12x =cos2y -2x y'sin2y
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</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)


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an equation of the tangent line is : y- π/4 = ( -π (1+√3)/3)(x-<span>π/2)</span>
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You have $400,000 saved for retirement. Your account earns 8% interest. How much will you be able to pull out each month , if yo
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