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3 years ago

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Mathematics

1 answer:

Alex Ar [27]3 years ago

5 0

Answer:

???

Step-by-step explanation:

?+?+?= ???

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What is the least common multiple (LCM) of 3 and 8

Elza [17]

Answer:

Since 3 and 8 are factors that don't have one common multiple, you just multiply them together.

8*3 = 24

24 is the LCM.

Mark brainliest!

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3 years ago

A bag contain 5 red marbles, 4 blue marbles and 6 green marbles. If three marbles are drawn out of the bag, what is the exact pr

statuscvo [17]

Answer:

2/91.

Step-by-step explanation:

There are 15 marbles in the bag.

Prob(First draw is red) = 5/15 = 1/3.

Prob(Second draw is red) = 4/14 = 2/7.

Prob(Third draw is red) = 3/13.

So probability that all 3 are red = .1/3 * 2/7 * 3/13

= 6/273

= 2/91.

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3 years ago

What are the multiples of 18?

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18<span>,36,54,72,90,108,126,144,162,180,198,216,234,252,
hope this helps!</span>

3 0

3 years ago

Read 2 more answers

There were s students at a summer camp in 2010. In 2011, there were half as many students as the previous year. In 2012, there w

valentina_108 [34]

The expression that would represent the total number of students at the summer camp for all three years is (b) 5.5s - 54

<h3>How to determine the expression?</h3>

Let the number of students in 2010 be s.

So, we have:

Year 2011 = 1/2s i.e. half as many students in 2010
Year 2012 = s - 54 i.e. 54 students less than 2010

The total number of students is:

Total = s + 1/2s + s - 54

Evaluate

Total = 9s/2 - 54

Rewrite s:

Total = 5.5s - 54

Hence, the expression that would represent the total number of students at the summer camp for all three years is (b) 5.5s - 54

Read more about expressions at:

brainly.com/question/723406

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8 0

2 years ago

Sodas in a can are supposed to contain an average 12 oz. This particular brand has a standard deviation of 0.1 oz, with an avera

hoa [83]

Answer:

The probability is $P(X < 12) = 0.99286$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 12 \ oz$

The standard deviation is $\sigma = 0.1 \ oz$

The sample mean is $\= x = 12.1 \ oz$

The sample size is n = 6 packs

The standard error of the mean is mathematically represented as

$\sigma_{\= x } = \frac{\sigma}{\sqrt{n} }$

substituting values

$\sigma_{\= x } = \frac{0.1}{\sqrt{6} }$

$\sigma_{\= x } = 0.0408$

Given that the can’s contents follow a Normal distribution then then the probability that the mean contents of a six-pack are less than 12 oz is mathematically represented as

$P(X < 12) = P ( \frac{X - \mu }{ \sigma_{\= x }} < \frac{\= x - \mu }{ \sigma_{\= x }} )$

Generally $\frac{X - \mu }{ \sigma_{ \= x }} = Z (The \ standardized \ value \ of \ X )$

$P(X < 12) = P ( Z < \frac{\= x - \mu }{ \sigma_{\= x }} )$

substituting values

$P(X < 12) = P ( Z < \frac{12.2 -12 }{0.0408} )$

$P(X < 12) = P ( Z < 2.45 )$

From the normal distribution table the value of $P ( Z < 2.45 )$ is

$P (Z < 2.45)0.99286$

=> $P(X < 12) = 0.99286$

4 0

3 years ago