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andreyandreev [35.5K]
3 years ago
14

The vector u = (2700, 3700) gives the number of units of two models of laptops produced by a company. The vector v = (1900, 950)

gives the prices (in dollars) of the two models of laptops, respectively. Use dot products to determine the revenue for these two laptops if the price of each is increased by 6%.
Mathematics
1 answer:
Scilla [17]3 years ago
8 0
Well, what is 6% of "v"? well, 6% of anything is just 6/100 * anything, so 6% of v is just 6/100 * v or 0.06v

so, v + 0.06v is just 1.06v  <--- that'd be the increased price for <1900, 950>

well, what's that vectors wise?  < 1900 * 1.06  , 950 * 1.06 >

that is <2014 , 1007>

now.. the Revenue is just price * quantity

so, I take it, it's just asking for the dot product of <2014, 1007> • <2700, 3700>

which should just be (2014 * 2700) + (1007 * 3700)
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3 years ago
Samantha deposit 300 in an account that earns an annual interest rate of 2.5 after nine months she computes the simple interest.
antiseptic1488 [7]

Answer:

She is doing a mistake of calculating interest after 9 months in place of after 12 months.

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The calculation of interest should be on a yearly basis (i.e. 12 months) as the interest rate is 2.5% per year. (Answer)

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Lily has 6 dog toys that are red one sixth of all her gig toys are red. How many gig toys does lily have?
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Have a nice day! :)


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