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Vilka [71]
3 years ago
5

Amanda Gorman already has plans to run for President. The expression that gives the year in which she hopes to do this is given

by the expression `4n^{2}+100`, where n is her age now.
What year is she planning on running
Mathematics
1 answer:
cluponka [151]3 years ago
7 0

Answer:

Im not sure

Step-by-step explanation:

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Please Help Me :(((((( I Really Dont Know How TO Do This :(((((((
mixas84 [53]
<h3>Answer:  an = 6n - 15   (Choice C)</h3>

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

Explanation:

This sequence is arithmetic

The first term is a = -9

The common difference is d = 6 since we're adding 6 to each term to get the next one (eg: -3+6 = 3 or 3+6 = 9 or 9+6 = 15)

Plug those values into the arithmetic nth term formula below

an = a + d*(n-1)

an = -9 + 6*(n-1)

an = -9 + 6n-6

an = 6n - 15

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

As a check, let's plug in something like n = 1

an = 6n - 15

a1 = 6*1 - 15

a1 = 6 - 15

a1 = -9

We see that the 1st term is -9, which matches the sequence given

Now let's plug in n = 2

an = 6n - 15

a2 = 6*2 - 15

a2 = 12 - 15

a2 = -3

The 2nd term is -3. This also matches.

I'll let you check the other values of n to confirm the answer.

4 0
3 years ago
Solve for u in terms of r, s, and t.<br><br> t= –rsu<br><br> u=
Stella [2.4K]

Answer:

u = - \frac{t}{rs}

Step-by-step explanation:

Given

t = - rsu ( multiply both sides by - 1 )

- t = rsu ( divide both sides by rs )

- \frac{t}{rs} = u

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3 years ago
$800 is deposited in an account that pays 9% annual interest, compounded annually. Find the balance after four years
almond37 [142]

Answer:

288

Step-by-step explanation:

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3 years ago
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