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-Dominant- [34]
2 years ago
13

What's the value of 8 + (-7)

Mathematics
1 answer:
Maru [420]2 years ago
3 0

Answer:

the answer is 1

Step-by-step explanation:

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20 business cards are placed in a hat, 10 belong to women, 10 belong yo men If 2 cards are drawn at once. what's the probability
erik [133]

Answer:

First choice:

               \large\boxed{\large\boxed{5/19}}

Explanation:

<em>The probability that the first is a man's card and the second, a woman's card</em> is calculated as the product of both probabilities, taking into account the fact that the second time the number of cards  in the hat has changed.

In spite of it is said that the cards are drawn at once, since it is stated a specific order for the cards (first is a man's card and the second, a woman's card) you can model the procedure as if the cards were drawn consecutively, instead of at once.

<u>1. Probability that the first is a man's card</u>

  • Number of cards in the hat = 20 (the 20 business card)

  • Number of man's card in the hat: 10

  • Probability = favorable oucomes / possible outcomes = 10/20 = 1/2.

<u />

<u>2. Probability that the second is a woman's card</u>

  • Number of cards in the hat = 19 (there is one less card in the hat)

  • Number of wonan's card in the hat: 10

  • Probability = favorable oucomes / possible outcomes = 10/19.

<u>3. Probability that the first is a man's card and the second, a woman's card</u>

<u />

  • (1/2) × (10/19) = 5/19

That is the first choice.

5 0
2 years ago
Read 2 more answers
Find the mesurement of the angle?
nevsk [136]

Answer:

100

Step-by-step explanation:

if both sides are the same then you can mirror the angles only if there equal

5 0
2 years ago
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A circle has its centre at (0,0) and passes through the point (-9,40).
BabaBlast [244]

Step-by-step explanation:

Radius of a cicke is calculated by 2 pi r

Equation is found by y=mx+C

3 0
1 year ago
Whats 567 divided by 566789
Doss [256]

0.00100037227 will be your correct answer.

7 0
3 years ago
What elements, found on the right side of the periodic table, usually accept electrons and have a negative valence? A. metals B.
krek1111 [17]
<h2>ANSWER:</h2><h3>Non Elements</h3><h3 /><h2>NOTES:</h2><h3>With the exception of HYDROGEN, the elements on the left side of the periodic table are METALS. Elements on the right side of the periodic table are NONMETALS.</h3>
5 0
2 years ago
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