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3 years ago

Plz answer! i need help soo bad

Mathematics

2 answers:

Butoxors [25]3 years ago

4 0

Answer:

64 feet

Step-by-step explanation:

8/2 = 4 inches

We can now multiply.

16 * 4 = 64

Rom4ik [11]3 years ago

3 0

Answer:

c.64

Step-by-step explanation:

16x8=128

128/2=64

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Mark is 7 years older than his brother, who is y years old. Which expression correctly represents Mark's age?

Alex787 [66]

7 + Y = X (x= His unknown age)

3 0

3 years ago

A regular polygon has its interior angles all equal to 174°

Vika [28.1K]

The shape has sixty sides

working out:
180 - 174 = 6
360 / 6 = 60

5 0

3 years ago

Assume that the number of customers who arrive at a water ice stand follows the Poisson distribution with an average rate of 6.4

Nady [450]

Answer:

18.88% probability that three or four customers will arrive during the next 30 minutes

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

In which

x is the number of sucesses

e = 2.71828 is the Euler number

$\mu$ is the mean in the given time interval.

Average rate of 6.4 per 30 minutes.

This means that $\mu = 6.4$

What is the probability that three or four customers will arrive during the next 30 minutes?

$P = P(X = 3) + P(X = 4)$

$P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}$

$P(X = 3) = \frac{e^{-6.4}*(6.4)^{3}}{(3)!} = 0.0726$

$P(X = 4) = \frac{e^{-6.4}*(6.4)^{4}}{(4)!} = 0.1162$

$P = P(X = 3) + P(X = 4) = 0.0726 + 0.1162 = 0.1888$

18.88% probability that three or four customers will arrive during the next 30 minutes

4 0

4 years ago

Find the missing numerator in each of the following fractiions? A. 5/6= /12. B. 2/4= /36. C. 2/5=/20. D. 4/25=/100

lesantik [10]

<u>Answer:</u>

A. 10

B. 18

C. 8

D. 16

<u>Step-by-step explanation:</u>

We are given a number of incomplete fractions and we are to find the missing numerator in each one of these.

To find the missing numerator or denominator, we multiply the numerator and the denominator by the same number to get an equivalent fraction.

A. $\frac{5}{6} =\frac{10}{12}$

Here the denominator is multiplied by 2 so the denominator will also be multiplied by 2 to get 10.

B. $\frac{2}{4} =\frac{18}{36}$

Numerator is multiplied by 9.

C. $\frac{2}{5} =\frac{8}{20}$

Numerator is multiplied by 4.

D. $\frac{4}{25} =\frac{16}{100}$

Numerator is multiplied by 4.

5 0

4 years ago

I will give brainly if right

snow_tiger [21]

Answer:

Alternate interior angles are congruent, so 2x+5 = 3x -2. X=7

Step-by-step explanation:

4 0

3 years ago