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chubhunter [2.5K]
3 years ago
10

Last One ---->

Mathematics
1 answer:
ipn [44]3 years ago
4 0
Its step 1  because  it is negative(negative 8) :-   that is plus 8
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The 4th term of an AP is 6. If the sum of the 8th and 9th terms is -72, the com. mon difference is:​
makvit [3.9K]

Answer:

t(4) = 6 ---- a + 3d = 6

t(8) + t(9) = -72

a+7d + a+8d = -72

2a + 15d = -72

double the first equation

2a + 6d = 12

subtract them

9d = -84

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Step-by-step explanation:

7 0
3 years ago
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Nat2105 [25]

Answer:

0 or -5/768

Step-by-step explanation:

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I hope this helps!

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6 0
3 years ago
2x -y +z = 7<br> 2x + 4y - 2z = 0<br> x-y + 3z = 2
djyliett [7]
The first one y = 2/3
8 0
3 years ago
Read 2 more answers
True or false? if the sample mean of a random sample from an x distribution is relatively small, then the confidence interval fo
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Answer: False.

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6 0
3 years ago
In ΔDEF shown below, segment DG is an altitude:
Tju [1.3M]
I found the corresponding image.

The step towards proving the similarity of triangles DEF and GED is:

ANGLE E IS CONGRUENT TO ITSELF.

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Only Angle E is in both triangles and its measure remains the same.

5 0
3 years ago
Read 2 more answers
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