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bearhunter [10]
2 years ago
8

Which expressions are equivalent to the model?

Mathematics
2 answers:
horsena [70]2 years ago
4 0
The correct answer is 2y(3+4x) and 6y + 8xy
you can distribute the 2y to both of the values inside the parentheses in order to simplify
Afina-wow [57]2 years ago
3 0
The correct answer is 2y(3+4x)
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2. Simplify:<br> b. 3(2x + 4y)
Nutka1998 [239]

Answer:

(6x+12y)

Step-by-step explanation:

answer is helpful or not

3 0
3 years ago
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How do I find X in the simplest radical form
GREYUIT [131]
Pythagorean theorem

8 0
3 years ago
A survey is being conducted in a county where 62% of the voters are Democrats and 38% are Republican. (a) What is the probabilit
Inessa05 [86]

Answer:

0.3844 = 38.44% probability that two independently surveyed voters would both be Democrats

Step-by-step explanation:

For each voter, there are only two possible outcomes. Either the voter is a Democrat, or he is not. The probability of the voter being a Democrat is independent of other voters. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

62% of the voters are Democrats

This means that p = 0.62

(a) What is the probability that two independently surveyed voters would both be Democrats?

This is P(X = 2) when n = 2. So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 2) = C_{2,2}.(0.62)^{2}.(0.38)^{0} = 0.3844

0.3844 = 38.44% probability that two independently surveyed voters would both be Democrats

3 0
3 years ago
Solve. 3p + 13 = 37 enter answer in box
Snowcat [4.5K]
<span>3p + 13 = 37
Subtract 13 from both sides
3p=24
Divide 3 on both sides
Final Answer: p=8</span>
6 0
3 years ago
Read 2 more answers
What is the approximate length of the radius of a circle with a circumference of 63 inches?
Sergeeva-Olga [200]

Answer: 63/2π

Step-by-step explanation: C=πd  

                                             63=πd

                                             D=63/π

r=1/2d

1/2×63/π=<u>63/2π</u>

       

5 0
3 years ago
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