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Natasha2012 [34]
2 years ago
14

A letter from the word probability is chosen at random. find each probability

Mathematics
1 answer:
stellarik [79]2 years ago
7 0
1/11 is the probability

Explanation: Their are 11 letters in the word probability and your choosing one letter out of the eleven other letters.
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I need help with this question to turn it into an equation. The question is
SVEN [57.7K]
Sure, here is how I broke it down. The bird is flying a constant X miles per hour with a wind speed of Y miles per hour. So, there are two equations that you use to solve. Here they are:

X+Y=12
X-Y=4

Now, you have to use substitution or elimination to solve (I will use elimination). To use elimination, you simply add both equations together to get:

2X=16
Solve for X by dividing by 2.

X=8. We already established that X is the speed of the bird. Plug X back into either of the equations to find the windspeed.

(8)+Y=12

Subtract 8 from both sides.

Y=4. We already established that Y is the windspeed.

So, the speed of the bird (X) is 8mph and the speed of the wind (Y) is 4mph.

Hope this helped!!
7 0
3 years ago
A rectangular garden measures 4 feet by 7 feet. If we increase the length and width by the same amount, then the new area is 88
malfutka [58]

Answer:

the answer is 11 by 8 feet.

Step-by-step explanation: 8 times 11 equals 88 and since the area is 88 that's the answer.

6 0
3 years ago
I’d really appreciate your help for this question!!
mel-nik [20]

Answer:

Step-by-step explanation:

the reason the questions may not be making sense to you is that there is a mistake in the written question they say 2 and 6  but meant 20 and 60.... and if that was the question the f(x) = 11x + 1 best describes that

6 0
2 years ago
HELP NEEDED!!
LenKa [72]

Answer:

a

Step-by-step explanation:

Given

2| x - 3 | + 5 = 17 ( subtract 5 from both sides )

2| x - 3 | = 12 ( divide both sides by 2 )

| x - 3 | = 6

The absolute value function always returns a positive value but the expression inside can be positive or negative, that is

x - 3 = 6 OR -( x - 3) = 6

x - 3 = 6 ( add 3 to both sides )

x = 9

OR

-( x - 3) = 6 ← distribute left side

- x + 3 = 6 ( subtract 3 from both sides )

- x = 3 ( multiply both sides by - 1 )

x = - 3

As a check

Substitute these values into the left side of the equation and if equal to the right side then they are the solutions.

x = 9 → 2|9 - 3| + 5 = 2|6| + 5 = (2 × 6) + 5 = 12 + 5 = 17 ← True

x = - 3 → 2|- 3 - 3| + 5 = 2| - 6 | + 5 = (2 × 6) + 5 = 12 + 5 = 17 ← True

Hence x = 9 or x = - 3 are the solutions → a

6 0
3 years ago
SIMPLIFY THE EXPRESSION 3(-6 + 2j)
Alinara [238K]

Answer:

-18 + 6j

Step-by-step explanation:

3 * -6 is -18

3 * 2j is 6j

4 0
3 years ago
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