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3 years ago

What is the 48th term of the arithmetic sequence with this explicit formula?

Mathematics

1 answer:

lora16 [44]3 years ago

7 0

Answer:

-149

Step-by-step explanation:

$a_{n}$ =-11 + (n - 1)(-3)

by observation

when n = 0, $a_{0}$ = 1st term

when n = 1, $a_{1}$ = 2nd term

.....

when n = x, $a_{x}$ = (x+1)th term

hence if we want to find the 48th term, n = 48 - 1 = 47

when n = 47, $a_{47}$ = 48th term

= -11 + (47-1)(-3)

= -11 + 46(-3)

= - 11 - 138

= -149

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Answer:

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Cost of Rental B, C=5h+50

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(B)

i. Rental C

ii. Rental A

iii. Rental B

Step-by-step explanation:

Let h be the number of hours for which the barbeque will be rented.

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Cost of Rental B, C=5h+50

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Cost of Rental C, C=9h+20

The graph of the three models is attached below

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Rental A should be chosen as it offers the lowest cost.

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3 years ago

Mathematics please help...

galben [10]

Answer:

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Step-by-step explanation:

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that is

$\frac{?}{360} \times 2\pi {r}^{2}$

= but because the question said for length AB, youvhave to use only one radius.

$\frac{160}{360} \times 2 \times \pi \times 9$

You the use 40 to cancel 160 and 360 to get 4 all over 9 times 2 pie times 9.

$\frac{4}{9} \times 2 \times \pi \times 9$

You then cancel 9 with 9 to get 4 times 2 times pie

$4 \times 2 \times \pi$

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