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horsena [70]
3 years ago
11

Twice the diffrence of a number and 9 is equal to three times the sum of the number and 5. Find the number

Mathematics
1 answer:
Elan Coil [88]3 years ago
5 0
2(n-9) = 3(n + 5)
2n - 18 = 3n + 15
2n - 3n = 15 + 18
-n = 33
n = -33
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cestrela7 [59]

Answer:

5/32

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If a coin if flipped five times with four heads, then it has exactly one tail. The number of way to arrange four heads and one tail are as follows:

T H H H H

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Essentially, there are five way because there are five "positions" where the tail could be.

Then, you need to find the total amount of possibilities for flipping a coin five times. Every time you flip it, there are two possibilities- heads and tails. Therefore, for five flips, the total amount of possibilities is

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8 0
3 years ago
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2 years ago
What are the solutions of the equation x4+6x^2+5=0? Use substitution to solve
Nataly_w [17]

Answer:

+ or - square root of 5, and + or - i

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Answer:

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4 0
2 years ago
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