2 years ago

The nth term of a sequence is 3n+4 explain why 21 is not a term of this sequence

1 answer:

6 0

In this sequence, n can only be a natural number. So, if you plug in 5 for n, then you get 19. Also, if you plug in 6 for n, you get 24. Since no natural number can be replaced with n to get 21, it isn’t a term in the sequence

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!!!!!!!!!!!!!!!!!!!!!!

bezimeni [28]

Answer:

x = 55

Step-by-step explanation:

To find the value of x

3x - 35 = 130 (vertically opposite angles are equal)

3x = 130 +35

3x = 165

x = 165/3

x = 55

8 0

2 years ago

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Select the angle that correctly completes the law of cosines for this triangle. 72 + 252 – 2(7)(25)cos ___ = 242 A. 180° B. 90°

meriva

Answer:

x =76.45 degrees

Step-by-step explanation:

72 + 252 – 2(7)(25)cos _x__=242

combine like terms

324-350cosx = 242

subtract 324 from each side

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divide by -350

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take the arccos of each side

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2 years ago

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strojnjashka [21]

Answer:

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Step-by-step explanation:

8 0

2 years ago

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Sever21 [200]

D.11.5 because when you bring the line and the dot it is 11.5

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2 years ago

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Gre4nikov [31]

Answer:

$(x + 5)$

Step-by-step explanation:

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