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nika2105 [10]
3 years ago
9

F(x) = 2.5x − 10.5 how do i solve this

Mathematics
2 answers:
Lorico [155]3 years ago
8 0

Answer:

X=10.5/F-2.5

Step-by-step explanation:

Roman55 [17]3 years ago
7 0

Answer:      

f(x)-2.5x=-10.5

Step-by-step explanation:

Subtract   2.5x  from both sides of the equation.

f ( x)   −  2.5 x  =  − 10.5

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<h3>Answer: 985</h3>

=============================================

Work Shown:

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A = P*(1+r)^t

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larisa86 [58]

Answer:

see explanation

Step-by-step explanation:

The n th term ( explicit formula ) of an arithmetic sequence is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₁₂ = - 95 and a₃₇ = - 270 , then

a₁ + 11d = - 95 → (1)

a₁ + 36d = - 270 → (2)

Subtract (1) from (2) term by term to eliminate a₁

25d = - 175 ( divide both sides by 25 )

d = - 7

Substitute d = - 7 into (1) and solve for a₁

a₁ + 11(- 7) = - 95

a₁ - 77 = - 95 ( add 77 to both sides )

a₁ = - 18 , thus

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a_{n} = - 7n - 11 ← explicit formula

--------------------------------------------------------------

The recursive formula allows a term in the sequence to be found by adding the common difference d to the previous term, thus

a_{n} = a_{n-1} - 7 with a₁ = - 18 ← recursive formula

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