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Elena-2011 [213]
3 years ago
10

Please help i cant figure out how to do this stupid problem

Mathematics
2 answers:
Eva8 [605]3 years ago
4 0

Answer:

(x+8)^2=63

Step-by-step explanation:

xxMikexx [17]3 years ago
3 0

Answer:

(x + 8)^2 = 1.

Step-by-step explanation:

We use the identity x^2 + ax + b =  (x + a/2)^2 - (a/2)^2 + b.

x^2 + 16x + 63 = 0

(x +16/2)^2 - (16/2)^2 + 63 = 0

(x + 8)^2 - 64 + 63 = 0

(x + 8)^2 - 1 = 0

(x + 8)^2 = 1.

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Answer:

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Step-by-step explanation:

Well, a standard cube number (dice) has numbers from 1 to 6. So the combinations that give 9 or higher, are 3-6, 6-3, 4-5, 5-4, 4-6, 6-4,5-6, 6-5, 5-5, 6-6. We will call this favorable cases (Fc) = 10

Yet, the total number of cases (T) is 6 different number by 6 different combinations (1-1 , 1-2 , 1-3 ..... 6-6), 6 x 6= 36 = T.

So, in order to calculate the probability of an event (10/36), you can use the following formula:

Pe = \frac{Fc}{T}

Pe = \frac{10}{36} = 0.2777

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