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Darina [25.2K]
2 years ago
15

Find the difference. 2/5(d-10)-2/3(d+6)

Mathematics
1 answer:
Anon25 [30]2 years ago
6 0

\dfrac 25(d-10) - \dfrac 23(d+6)\\\\\\=2 \left(\dfrac{d-10}5 - \dfrac{d+6}3 \right)\\\\\\=2\left[\dfrac{3(d-10) - 5(d+6)}{15}\right]\\\\\\=2 \left( \dfrac{3d-30-5d-30}{15} \right)\\\\\\=2\left(\dfrac{-2d-60}{15} \right)\\\\\\=2(-2) \left(\dfrac{d+30}{15} \right)\\\\\\=-4 \left(\dfrac{d+30}{15} \right)\\\\\\=-4\left(\dfrac d{15} +2 \right)\\\\\\=-\dfrac{4d}{15}-8

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Answer:

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Step-by-step explanation:

In this problem we have a exponential function of the form

y=a(b^x)

where

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we have that

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substitute in the exponential function

3,300=3,000(b^8)

solve for b

1.1=(b^8)

b=\sqrt[8]{1.1}

b=1.0120

Find the value of r

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The equation is equal to

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For x=12 hours

substitute the value of x in the equation

y=3,000(1.012^{12})

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8 0
4 years ago
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Jobisdone [24]

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Step-by-step explanation:

Since this is a right triangle, we can use trig functions

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