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Lilit [14]
3 years ago
15

2 times the quantity 3 times c plus 9

Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0
2(3c+9).
You are multiplying two by the whole other equation which is the 3c+9 so once you figure that equation out then multiply the whole thing by that two
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The equation, 3x2 + 6x + 3y2 + 7y + 4 = 0, represents a conic.
Leno4ka [110]

Answer: Circle

Step-by-step explanation:

Check the variables' degrees and their coefficients' signs to determine the type of the conic.

7 0
3 years ago
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1 and 2 form a linear pair. If the
natka813 [3]

Angles that form a linear pair add up to 180 degrees.

If the measure of angle 1 is 113, then all we must do is subtract:

180-113=67 degrees

And we're done!

Good luck! :)

Hope it helps you!

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8 0
3 years ago
g A fair coin is tossed 20 times. The number of heads observed is the count X of successes. Give the distribution of X . Choose
Nuetrik [128]

Answer:

We assume that we have a fair coin that is p(Head)=p(Tails)=0.5

For this case we define the random variable X as "number of heads observed in 20 times". The distribution for X is given by:

X \sim Binom(n=20, p=0.5)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

nCx=\frac{n!}{(n-x)! x!}  

Solution to the problem

We assume that we have a fair coin that is p(Head)=p(Tails)=0.5

For this case we define the random variable X as "number of heads observed in 20 times". The distribution for X is given by:

X \sim Binom(n=20, p=0.5)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

3 0
3 years ago
(25 POINTS!) Identify the like terms, explain how you know they are
Hatshy [7]

Answer:

Step-by-step explanation:

Like terms: 10y, -2y, 3x, and x

These are all like terms since they have a similar variable

Simplifying the expressions:

10y + 3x + 10 + x -2y = [(10y + -2y) + (3x + x)] + 10

= 8y +  4x + 10

Like terms: 3x, 4x, y, and -2y

Same as first explanation, terms have a similar variable

3x - y + 4x + 6 - 2y = (3x + 4x) + (-2y - y) + 6

= -3y + 7x + 6

Hope I helped :)

8 0
3 years ago
PLEASE HELP!!!! I WILL MARK BRAINLYEST!!!!
shusha [124]
True they are equivalent fractions both are divided by -3 to get 14/15
8 0
3 years ago
Read 2 more answers
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