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Zielflug [23.3K]
3 years ago
7

In a class room of 30 students, 18 are female and 12 are male. If you randomly select one person, what is the probability you wi

ll select a female
Mathematics
1 answer:
lawyer [7]3 years ago
7 0
There is a 60% chance that a female will be chosen .





18/30 = 0.60 .
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How <br> do you write (-∞, 8) or (10, ∞) as an inequality?
ahrayia [7]

Your answer would be, To write, (−∞,8), or (10,∞), ==> x < 8 or, x > 10

(-∞, 8) or (10, ∞)

Solution: ==> - 10 . ∞ + 8 . ∞ or, x < 8 or, x > 10

Steps:

(-∞, 8) or (10, ∞) ==> - 10 . ∞ + 8 . ∞

(-∞, 8) . (10, ∞)

Computing dot product of two Vectors:

( X1, Xn) . ( Y1, Yn) = Σ^n^i = 1X^iY^i

= ( - ∞) . 10 + 8 . ∞

Simplify:

( - ∞) 10 + 8 . ∞

- 10 . ∞ + 8 . ∞

( - ∞) . 10 + 8 . ∞

Remove Parenthesis:

( - a) ==> - a

- ∞ . 10 + 8 . ∞

==> - 10 . ∞ + 8 . ∞

==> (- 10 . ∞ + 8 . ∞) ==> - 10 . ∞ + 8 . ∞

( ==> - 10 . ∞ + 8 . ∞)

Remove Parenthesis:

( a) = a

==> - 10 . ∞ + 8 . ∞

Therefore, (-∞, 8) or (10, ∞) as an inequality, Answers are, ==>

- 10 . ∞ + 8 . ∞ or, x < 8 or, x > 10

Check:

(-∞, 8) or (10, ∞)

==> x < 8 or, x > 10

Solution:

x < 8 or, x > 10

Interval Notation:

[ x < 8 or, x > 10 ==> (-∞, 8) ∪ (10, ∞) ]

Steps:

x < 8 or, x > 10

x < 8 : x < 8

x < 8

x < 8

x < 8

x > 10 : x > 10

x > 10

x > 10

x > 10

Combine The Ranges:

x < 8, or x > 10

Hope that helps!!!!! : )

4 0
3 years ago
Pleasee help<br><br> 15 points
Nostrana [21]

Answer:

10

Step-by-step explanation:

4 0
3 years ago
The price of a stock, A(x), over a 12-month period decreased and then increased
Alborosie
The answer to this question is D
6 0
3 years ago
Does anyone know the answers??
Yanka [14]

Answer:

m^2-2m-3

Step-by-step explanation:

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7 0
2 years ago
The City Council plans to install new slides at the playgrounds in all of its parks. The new slides are 14 feet long and need to
qaws [65]
It should be 12.65 feet away because, if the hypotenuse is 14 and the height is 6, you would multiply 14x14 which is 196 and subtract the height (36). That gives you 160, and the square root of 160 is 12.65
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