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3 years ago

Find the LCM of 3,18,5

Mathematics

1 answer:

Serjik [45]3 years ago

8 0

LCM of 3,18,5 is 90 because LCM of 3,18 is 18 then LCM of 18,5 is 18*5=90

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What is the equation of 30-20

serious [3.7K]

If you would like to calculate x = 30 - 20, you can do this like this:

x = 30 - 20
x = 10

The correct result would be x = 10.

7 0

3 years ago

According to insurance records, a car with a certain protection system will be recovered 87% of the time. If 600 stolen cars are

White raven [17]

Answer:

The mean and standard deviation of the number of cars recovered after being stolen is 522 and 8.24 respectively.

Step-by-step explanation:

We are given that according to insurance records, a car with a certain protection system will be recovered 87% of the time.

Also, 600 stolen cars are randomly selected.

Let X = <u><em>Number of cars recovered after being stolen</em></u>

The above situation can be represented through binomial distribution;

$P(X=r)=\binom{n}{r}\times p^{r} \times (1-p)^{n-r} ;x=01,2,3,......$

where, n = number of trials = 600 cars

r = number of success

p = probability of success which in our question is the probability

that car with a certain protection system will be recovered,

i.e. p = 87%.

So, X ~ Binom(n = 600, p = 0.87)

Now, the mean of X, E(X) = $n \times p$

= $600 \times 0.87$ = 522

Also, the standard deviation of X, S.D.(X) = $\sqrt{n \times p \times (1-p)}$

= $\sqrt{600 \times 0.87 \times (1-0.87)}$

= 8.24

3 0

3 years ago

Elena's mother asked her to add a half-cup of water to the beans.

schepotkina [342]

Answer:

4 oz

Step-by-step explanation:

one cup is 8 oz

1/2 cup is 8/2 oz which is 4 oz

7 0

3 years ago

Read 2 more answers

Use the motion map to answer the question.

kodGreya [7K]

Answer:

A car slows to stop at a stop sign. Once traffic is clear, the car speeds up.

Step-by-step explanation:

The lines are longer, signifying faster movement, and then shorter, signifying slower movement, and then vice versa.

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3 years ago

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Student travels 1087 feet per second how many seconds ,x, does it take the sound of an airplane to reach you when it is 10,000 f

Sergio [31]

1087x =10000
1087(9.199) = 100
X=9.199

3 0

3 years ago