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aliya0001 [1]
3 years ago
15

V= 2i +9j Find ||9v||

Mathematics
1 answer:
Korvikt [17]3 years ago
8 0

Answer:

9\sqrt{85}

Step-by-step explanation:

9v = 9(2i + 9j) = 18i + 81j

|9v | = \sqrt{18^2+81^2} = \sqrt{x6885} = 9\sqrt{85}


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Answer:

The correct option is B.

Step-by-step explanation:

The formula for amount after compound interest is

A=P(1+\frac{r}{n})^{nt}

Where P is principal, r is rate of interest, n is number of times interest compounded in a period, t is number of years.

It is given that Felix took out an unsubsidized student loan of $40,000 at a 3.6% APR, compounded monthly. The amount after 33 month is

A=40000(1+\frac{0.036}{12})^{33}=44156.1074

The amount after 33 month is $44156.1074. So, the new principle amount is $44156.1074.

The monthly payment  of $44156.1074 for 20 years is

m=\frac{P.V.(\fracr)}{1-(1+r)^{-n}}

Where, P.V. is present value, r is rate of interest and n is number of times interest compounded.

m=\frac{44156.1074(\frac{0.036}{12})}{1-(1+\frac{0.036}{12})^{-20\times 12}}

m=258.362447711

m\approx 258.36

Therefore the correct option is B.

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