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vladimir2022 [97]
3 years ago
13

Solve for x -9 = -7 match

Mathematics
1 answer:
pashok25 [27]3 years ago
8 0
The answer is : x = 2
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Christina goes to market with $50. She buys one papaya for $20 and spends the rest of the money on bananas. Each banana costs $6
maria [59]
x-\ number\ of\ bananas\\\\
20+6x\leq50\ \ \ \ | subtract\ 20\\\\
6x\leq30\ \ \ | divide\ by\ 6\\\\
x\leq5\\\\
x\in(-\infty,5)
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3 years ago
Two number cubes are rolled for two separate events: event A is the event that the sum of numbers on both cubes is less than 10.
Inessa05 [86]
A event would be five I think and the event of b would be nine
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3 years ago
A grab bag contains 12 packages worth $.70 each, 15 packages $.40 cents each, and 25 packages worth $.30 each. what is the expec
Salsk061 [2.6K]

The expected value of the discrete distribution, if you have to pay $.50 to pick one package at random, is of -$0.08.

<h3>What is the mean of a discrete distribution?</h3>

The expected value of a discrete distribution is given by the <u>sum of each outcome multiplied by it's respective probability</u>.

For this problem, considering the cost of $0.5, the distribution is given as follows:

  • P(X = 0.2) = 12/(12 + 15 + 23) = 12/50 = 0.24.
  • P(X = -0.1) = 15/(12 + 15 + 23) = 15/50 = 0.3.
  • P(X = -0.2) = 23/(12 + 15 + 23) = 23/50 = 0.46.

Hence the expected value is given by:

E(X) = 0.2 x 0.24 - 0.3 x 0.1 - 0.2 x 0.46 = -$0.08.

More can be learned about the expected value of a discrete distribution at brainly.com/question/13008984

#SPJ1

8 0
2 years ago
What is the probability that a family of 4 children will have all girls?
Alex73 [517]
Since as of now we're saying that the probability of having a girl is 1/2, we can say:
1/2 * 1/2 * 1/2 * 1/2, because then you're saying a one half chance of having a girl times another one half chance of having a girl, etc.
 That ends up to be 1/16.
3 0
3 years ago
Can anyone help me? The top is geometry and the bottom is algebra...
umka21 [38]

Answer:

<u>Geometry</u>

AC equals 13x + 7

<u>Algebra</u>

1. x = -16

2. x = 2

3. 2x^2 - 5x -7

4. (2x + 1)(x - 5)

Step-by-step explanation:

6 0
3 years ago
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