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3 years ago

Calculate 18t -t +6q-6

Mathematics

2 answers:

Gnoma [55]3 years ago

6 0

Answer:

17t+6q-6

Step-by-step explanation:

18t -t +6q-6

Combine like terms

17t+6q-6

guajiro [1.7K]3 years ago

6 0

Answer:

17t+6q-6

Step-by-step explanation:

18t-t =17t

others don't change as they are not the factors of the same character

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What is 1/2 divided by 1/3

Artemon [7]

Answer:

$\frac{3}{2}$

Step-by-step explanation:

$\frac{1}{2}$ ÷ $\frac{1}{3}$

The reciprocal of $\frac{1}{3}$ is 3, so finding the reciprocal will replace the division sign with a multiplication sign.

= $\frac{1}{2}$ x 3

= $\frac{3}{2}$ or 1 $\frac{1}{2}$ or 1.5

6 0

3 years ago

Software filters rely heavily on ""blacklists"" (lists of known ""phishing"" URLs) to detect fraudulent e-mails. But such filter

crimeas [40]

Answer:

a) $X \sim Binom(n=16, p=0.2)$

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:

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

The expected value is given by this formula:

$E(X) = np=16*0.2=3.2$

b) $P(X=0)=(16C0)(0.2)^{0} (1-0.2)^{16-0}=0.02815$

Step-by-step explanation:

Previous concepts

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".

Part a

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=16, p=0.2)$

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:

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

The expected value is given by this formula:

$E(X) = np=16*0.2=3.2$

Part b

For this case we want this probability:

$P(X=0)$

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:

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

And using this function we got:

$P(X=0)=(16C0)(0.2)^{0} (1-0.2)^{16-0}=0.02815$

6 0

2 years ago

Please someone help me with this I’m very confused

mote1985 [20]

Answer:

a. n= 1x +7

b. n= 12 + 4x

Step-by-step explanation:

4 0

3 years ago

4x^2 + 7x - 2 = 0 all the steps using quadratic formula

Natali5045456 [20]

the answer is 55

hope this helped

7 0

3 years ago

One sixth of a right angle

QveST [7]

The answer will be fifteen degrees because one sixth is 1/6 and a right angle is 90 degrees so it will be 1/6 * 90/6 which will be 90 divided by 6 and equal fifteen .

7 0

3 years ago

Calculate 18t -t +6q-6​

Calculate 18t -t +6q-6