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faust18 [17]
4 years ago
11

What is the value of x in the following equation? x2 - 1 = 8

Mathematics
2 answers:
gtnhenbr [62]4 years ago
8 0

Answer:

4.5

Step-by-step explanation:

if we take -1 and put it in L.H.S it becomes 8+1=9 and then when u put x2 which is x×2 to L.H.S it becomes 9÷2 =4.5

allsm [11]4 years ago
6 0

Answer:

4.5

Step-by-step explanation:

First break it apart by taking the x2 and set it aside then add 8 + 1 which is 9.

Next take the 9 and divide it by 2 then you get 4.5.

To double check make sure to multiply 4.5 by 2 just to make sure it gets 9 as the answer.

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What is the arithmetic mean of the following numbers?<br> 10.6, 4, 4, 6, 4,1
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Explanation

So mean is just the sum of the numbers divided by the number of terms
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4 years ago
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4 years ago
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4 0
3 years ago
61.7 is what percent of 64? Round to the nearest thousandth.
scoundrel [369]

Answer:

96.406%

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