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3 years ago

Please help with this question

Mathematics

2 answers:

Arlecino [84]3 years ago

7 0

Answer:

Option F

Step-by-step explanation:

<A is opposite to Side BC "only".

Semenov [28]3 years ago

5 0

Answer:

Line BC

Step-by-step explanation:

Opposite means whatever is exactly parallel to angle a.

In this case, we notice BC to satisfy that rule.

Hope this helps.

Good Luck

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How many fewer cans of food were collected by 87369 than 91761?

denpristay [2]

The answer I think you are looking for is 4,392.

91,761 - 87,369 = 4,392

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3 years ago

Find the greatest common factor of the following monomials 3B + 30 B

ryzh [129]

Answer:

Step-by-step explanation:

The greatest common factor is the greatest number that will divide two values. We have two values 3B and 30B. Each has numbers which multiply together to give the number. We need to find the highest value or most in common they share. Each has the factors:

3B: 1,3,B

30B: 1, 3, 5, 6, 10, B

Both have 3 and B has factors. Our GCF is these two factors.

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2 years ago

Write an equation of the line that passes through (−5, −2)(−5, −2) and is parallel to y=23x+1y=23x+1.

Klio2033 [76]

Assuming you meant 2/3
y=2/3x+1 and (-5,-2)

paralell means same slope
y=mx+b
m=slope

y=2/3x+1
sllope=2/3

point slope
y-y1=m(x-x1)
for slope=m
a point is (x1,y1)

slope=2/3
point=(-5,-2)

y-(-2)=2/3(x-(-5))
y+2=2/3(x+5)
or
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7 0

3 years ago

3. A bag of Jelly beans contains 12 red, 17 white and 14 black jelly beans.

Nataly_w [17]

Answer:

steps below

Step-by-step explanation:

Total = 12+17+14 = 43

Without replacement:

C(12,5) / C(43,5) = (12!/5!*7!) / (43!/5!*38!) = (12*11*10*9*8) / (43*42*41*40*39)

= 95040 / 115511760

= 0.00082

≈ 0.082%

with replacement: 12/43*12/43*12/43*12/43*12/43 = 12⁵ / 43⁵

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2 years ago

Each multiple-choice question on an exam has four choices. Suppose that there are 10 questions and the choice is selected random

Anika [276]

Answer:

It is discrete, but not uniform, since each outcome is not equally as likely.

Step-by-step explanation:

For each question, there are only two possible outcomes. Either it is answered correctly, or it is not. The probability of answered a question is independent from the probability of answeing other questions. 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.

Each multiple-choice question on an exam has four choices.

This means that $p = \frac{1}{4} = 0.25$

10 questions

This means that $n = 10$

Let X denote the number of questions answered correctly. Does X have a discrete uniform distribution? Why or why not?

It is discrete, because the number of questions answered correctly is a discrete value.

However, it is not uniform. A distribution is uniform when each outcome is equally as likely. For example, the probability of answering 0 questions correctly is different of the probability of answering 1 question correctly, as we see below.

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

$P(X = 0) = C_{10,0}.(0.25)^{0}.(0.75)^{10} = 0.0563$

$P(X = 1) = C_{10,1}.(0.25)^{1}.(0.75)^{9} = 0.1877$

3 0

2 years ago