1 year ago

What is the fifth term of the sequence described by the following explicit formula? an = 4 + (n + 1)(-5)

Mathematics

1 answer:

Studentka2010 [4]1 year ago

6 0

Answer:

Step-by-step explanation:

substitute n = 5 into the explicit formula , then

a₅ = 4 + (5 + 1)(- 5) = 4 + 6(- 5) = 4 - 30 = - 26

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Which ordered pair is a solution to the system of equations? Use any method to solve. 4x-y=5, x+y=10

fomenos

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The ordered pair ( 5, 15) is a solution to the system of given equations.

Step-by-step explanation:

Consider the given equations,

4x-y=5 .......(1)

x+y=10 .......(2)

We have to find the ordered pair which is a solution to the system of given equations.

We solve the system by elimination method,

Adding both equation , to eliminate y ,

⇒ 4x - y +( x+y ) = 5+ 10

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