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Svetach [21]
3 years ago
13

Need help !!!! How to solve this problem

Mathematics
2 answers:
ryzh [129]3 years ago
6 0

-5+\dfrac{n}{3}=0\\\\ \dfrac{n}{3}=5\\\\ n=15

ss7ja [257]3 years ago
5 0

N = 15

First you would add 5 to both sides.

Then you would Multiply 3 on both sides to get N by itself

By multiplying 3 x 5 it gives you 15

So N = 15

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What is a formula for the nth term of a given sequence
IceJOKER [234]

Answer:

a_n=-12-4(n-1)

Step-by-step explanation:

The given sequence is

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The first term of this sequence is a_1=-12.

The common difference is

d=-16--12

d=-16+12=-4

The nth term of this arithmetic sequence is;

a_n=a_1+d(n-1)

We substitute the values for the first term and the common difference to obtain;

a_n=-12-4(n-1)

5 0
3 years ago
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lubasha [3.4K]
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4 0
3 years ago
find the sum of the first 20 terms of an arithmetic sequence with a first term of -14 and a comman difference of 4​
timama [110]

Answer:

480

Step-by-step explanation:

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n = 20 a = -14 d = 4

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7 0
3 years ago
Barrett is comparing the membership fees for two museums.The art museum charges a one-time fee of $8.25 plus $2.25 per month. Th
Oksanka [162]

Answer:

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$10.75-$8.25=$2.50

$3.50-$2.25=$1.25

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3 years ago
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The measure of angle 1 and 2 should add up to 180°, because it forms a straight line. The same goes for the sum of angle 3 and 4.

Since we are given the measure of angle 2, we can find the measure of angle 1 by subtracting 143° from 180°.

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We know that the intersecting lines form 2 sets of vertical angles, which are congruent. This means that the angles opposite from each other have the same measure. Therefore, both angle 2 & 4 have a measure of 143°, while angle 1 & 3 have a measure of 37°.

4 0
3 years ago
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