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Klio2033 [76]
3 years ago
6

What is (1.8*10 to the power of 9)*(6.7*10 to the power of twelve) written in scientific notation?

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
7 0
(1.8×10^9) × (6.7×10^12)
1800000000 × 6777777777777
= 123  (3sf)
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Step-by-step explanation:

The height of the swipe card is given by :

h(t)=-3t^2+15t+18 .....(1)

We need to find the maximum height of the swipe card and the time to reach the maximum height.

For maximum height, put dh/dt = 0

So,

\dfrac{d}{dt}(-3t^2+15t+18)=0\\\\-9t+15=0\\\\t=\dfrac{15}{9}\\\\t=1.67\ s

It will take 1.67 seconds to reach the maximum height.

Now, put t = 1.67 s in equation (1).

h(1.67)=-3(1.67)^2+15(1.67)+18\\\\=34.68\ feet

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3 years ago
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Answer:

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Step-by-step explanation:

I'm honestly not sure what you're asking...

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if it was 18 min after 8pm, then it would be 20:18

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What is the interest rate for a investment of $6000 for a rate of 3% and a interest of $450
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Step-by-step explanation:

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