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Usimov [2.4K]
3 years ago
5

the first three terms of the sequence are -9 -7 -5 select the expression giving the nth term of the sequence n+2,n-2, 2n-9, 2n -

11
Mathematics
1 answer:
tamaranim1 [39]3 years ago
7 0

Answer:

2n-11

Step-by-step explanation:

-9, -7, -5

a+(n-1)d

-9+(n-1)2

-9+2n-2

2n-11

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find 2 consecutive integers such that three times the square of the first is equal to seven more than five times the second
melamori03 [73]

Answer:

Step-by-step explanation:

We are looking for two numbers, N and N + 1. From the problem statement, we can setup the following equation:

3N^{2} = 5(N + 1) + 7

3N^{2} = 5N + 5 + 7

3N^{2} - 5N - 12 = 0

(3N + 4)(N - 3)

N = \frac{-4}{3}, 3

Because 3 is the only integer solution, the answer is 3 and 4.

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Answer: The answer is supply.

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Solve for x. Show your work. <br> - 1/2x &lt; -12
frozen [14]
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50 POINTS AND BRAINIEST PLEASE HELP
exis [7]

Answer:

<h2><u>y = -2x</u></h2>

Step-by-step explanation:

If you notice very carefully then you will see that the line passes through the points :

( 1 , - 2 )

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We know that - 2 × 1 = - 2

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Verification :

For points ( - 1 , 2 ) we can write :

y = - 2x

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Always try to use the converse of the graphical method .

( Nothing converse is there ... just saying the opposite steps of that method :P )

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Answer:

Last Option

Step-by-step explanation:

We have a triangle and we know its three sides.

We want to find one of your anguos. Then we use the cosine theorem.

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Where

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Now we solve for x from the equation

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6 0
3 years ago
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