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Scorpion4ik [409]
3 years ago
6

What is the probability that they both choose a card labelled dog?

Mathematics
1 answer:
tatyana61 [14]3 years ago
5 0
Would it just be .8% chance? because .4x2 because they’re both doing it?
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A ________ is a whole number that divides another whole number with a remainder of 0
Brut [27]

It's a factor. This concept is widely used throughout algebra, and you'll probably bump into it through the end of high school and beyond.

A common use is expressing a term in <em>prime factorization</em>, or reducing a number to its most base parts- primes. For example:

20 = 4 * 5 = 2 * 2 * 5

Of course, a number like 13 which is already prime is made up of itself and 1. <em>Factors do not have to be primes.</em> 20 is also reducible through combinations of 1, 2, 4, 5, 10, and 20. Prime factorization is just a handy example.

Basically, factors multiply with each other to create other numbers, and numbers can be reduced down to their factors.

8 0
4 years ago
Which expression is equivalent to 7a2b + 10a2b2 + 14a2b3?
Llana [10]
The given expression can be simplified in many ways by grouping like terms. The simplest form is obtained by factoring out a²b which gives us the following expression.

a²b(7 + 10b +14b²)
3 0
3 years ago
Read 2 more answers
Which of the following best explains how a single nucleotide substitution can cause hemoglobin molecules to chain together ins
horsena [70]
The correct option is this: THE MUTATION CAUSES THE WRONG AMINO ACID TO BE INCORPORATED INTO THE PROTEIN PRODUCT, WHICH RESULTS IN IMPROPER FOLDING.
There are different type of mutation, one of them is substitution mutation. Substitution mutation occurs when one nucleotide is exchanged for another during the process of nucleotide incorporation. Such a change will result in change in the function of the protein that is been formed.
4 0
3 years ago
The average lifetime of a certain new cell phone is 3.4 years. The manufacturer will replace any cell phone failing within three
melisa1 [442]

Answer:

68% of these phones last 3.87 years.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

The average lifetime of a certain new cell phone is 3.4 years.

This means that m = 3.4, \mu = \frac{1}{3.4} = 0.2941

So

P(X \leq x) = 1 - e^{-0.2941x}

68% of these phones last how long (in years)?

This is x for which:

P(X \leq x) = 0.68

P(X \leq x) = 1 - e^{-0.2941x}

Then

0.68 = 1 - e^{-0.2941x}

e{-0.2941x} = 0.32

\ln{e{-0.2941x}} = \ln{0.32}

-0.2941x = \ln{0.32}

x = -\frac{\ln{0.32}}{0.2941}

x = 3.87

68% of these phones last 3.87 years.

4 0
3 years ago
A restaurant interest survey of 230 citizens in a town showed that 80 want a new Chili's, 120 want a new Red Lobster, and 20 wan
mr_godi [17]

The right solution to the given question is "\frac{2}{23}", "\frac{6}{23}" and "\frac{5}{23}".

According to the question,

  • a+b+c+d = 230
  • b = 20
  • a+b = 80

By putting the value of "b", we get

  • a+20=80

                a = 80-20

                a = 60

  • b + c=120

By putting the value of "b", we get

      20+c=120

              c = 120-20

              c = 100

  • d = 230-60-100-20

By putting the values of "a", "b", "c" and "d", we get    

       d = 50

(a)

P(both Chili's and Red lobster),

= \frac{b}{a+b+c+d}

= \frac{2}{23}

(b)

P(only chili's),

= \frac{a}{a+b+c+d}

= \frac{6}{23}

(c)

P(neither),

= \frac{d}{a+b+c+d}

= \frac{5}{23}

Learn more about probability here:

brainly.com/question/24269622

6 0
3 years ago
Read 2 more answers
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