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3 years ago

What is √6/√5 in simplest radical form?

Mathematics

2 answers:

Veseljchak [2.6K]3 years ago

8 0

√30 is the answer, i hope this helps

Reil [10]3 years ago

5 0

square root of 30. Hope this helps

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Quadratic Function PLEASE HELP!! questions attached below

marysya [2.9K]

28) ANSWER: x=5
Because 5*5=25.
29) ANSWER: x=4
3x^2=48
Divide both sides by 3.
x^2=16
x=4
Because 4*4=16.

4 0

3 years ago

Read 2 more answers

Assume that X is a binomial random variable with n = 27 and p = 0.90. Calculate the following probabilities. (Do not round inter

Yuki888 [10]

Answer:

a) $P(X=26) = 27C26 (0.9)^{26} (1-0.9)^{27-26}= 0.1744$

b) $P(X=25) = 27C25 (0.9)^{25} (1-0.9)^{27-25}= 0.2520$

c) $P(X=25) = 27C25 (0.9)^{25} (1-0.9)^{27-25}= 0.2520$

$P(X=26) = 27C26 (0.9)^{26} (1-0.9)^{27-26}= 0.1744$

$P(X=27) = 27C27 (0.9)^{27} (1-0.9)^{27-27}= 0.0582$

And addind the values we got:

$P(X\geq 25)= P(X=25)+P(X=26)+P(X=27)=0.2520+0.1744+0.0582=0.4846$

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".

Solution to the problem

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

$X \sim Binom(n=27, p=0.9)$

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:

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

Part a

We want this probability:

$P(X=26)$

And we can use the probability mass function and we got:

$P(X=26) = 27C26 (0.9)^{26} (1-0.9)^{27-26}= 0.1744$

Part b

We want this probability:

$P(X=25)$

And we can use the probability mass function and we got:

$P(X=25) = 27C25 (0.9)^{25} (1-0.9)^{27-25}= 0.2520$

Part c

We want this probability:

$P(X\geq 25)= P(X=25)+P(X=26)+P(X=27)$

And we can use the probability mass function and we got:

$P(X=25) = 27C25 (0.9)^{25} (1-0.9)^{27-25}= 0.2520$

$P(X=26) = 27C26 (0.9)^{26} (1-0.9)^{27-26}= 0.1744$

$P(X=27) = 27C27 (0.9)^{27} (1-0.9)^{27-27}= 0.0582$

And addind the values we got:

$P(X\geq 25)= P(X=25)+P(X=26)+P(X=27)=0.2520+0.1744+0.0582=0.4846$

3 0

3 years ago

Help plz answer needed fast

grigory [225]

We just substitute in -12 for x in each one and see if it's true

2(-12)+6 = -24 + 6 = -18, not 30, NOPE

-0.25(-12) - 1 = 3-1 = 2, that worked, CHECK ME

-12 - 8 = -20, CHECK ME

-35(-12) +2 = 422, not -515, NOPE

3(-12+25)=3(13)=39, CHECK ME

8 0

3 years ago

How do to improper fraction

BARSIC [14]

Well if you want to turn an improper fraction to a mixed number you just divide the denominator by the numerator if that's what your asking

3 0

4 years ago

Read 2 more answers

What is 6 /9ths divided by 5/8ths

Ivahew [28]

The answer to this problem is 16/15

$o u solve this by turning 5/8 into 8/5 then turn 6/9 into 2/3 , Then u multiply 2/3 and 8/5 and you get the answer 16/15.

4 0

3 years ago