4 years ago

The 9th term of an arithmetic sequence is 29 and the 27th term is 83 find a and d

Mathematics

1 answer:

bixtya [17]4 years ago

4 0

Answer:

Hope you understand

a=5 and d=3

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Factorise fully the following:<br> a) 5x + 40<br> b) 7x - 49<br> c) 18x + 9<br> d) 15x - 10

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Answer:

a)5(x+8)

b)7(x-7)

c)9(2x+1)

d)5(3x-2)

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3 years ago

A drawer contains eight different pairs of socks. If six socks are taken at random and without replacement, compute the probabil

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The probability of drawing at least one pair is 111/143.

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3 years ago

Consider a sequence given by the formula an = an−1 − 5, where a1 = 12 and n ≥ 2.

Mars2501 [29]

Answer:

12, 7, 2, -3 & -8

Step-by-step explanation:

The initial value given is 12 i.e. $a_{1} = 12$

The initial assumption based on the given information is that the formula given is as follow

$a_{n} = a_{(n-1)} -5$

To find the first five terms we need to find a1, a2, a3, a4 and a5

Since we have already been given the value of a1 i.e. 12

The remaining value are as follow

$a_{1} = 12\\ a_{2} = a_{1} - 5 = 7\\ a_{3} = a_{2} -5 = 2\\ a_{4} = a_{3} - 5 = -3\\ a_{5} = a_{4} - 5 = -8$

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3 years ago

Bay Area Rental Cars charges $14 a day and $0.12 per mile for renting a car. You rented a car for 4 days and drove 475 miles. Fi

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1) the total cost of renting a car for 475 miles and 4 days is

$14 *(4 )+ $0,12*(475) = 56+57= $ 113

6 0

3 years ago

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I need help with this question please help I'm very stuck

natima [27]

Answer:

14 9/10

Step-by-step explanation:

2 2/7 times 2 = 4.57

5 1/6 times 2 = 10.33

10.33 + 4.57 = 14.90

14.90 as a fraction is 14 9/10

3 0

4 years ago

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