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3 years ago

HELP FOR BREANTEST ANSWER ON PAPER

Mathematics

1 answer:

nevsk [136]3 years ago

8 0

Answer:

3 3/7

Step-by-step explanation:

2 = 14/7

14/7 + 10/7 = 24/7

24/7 simplified is 3 3/7

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Please tell me !!!!!!

vlada-n [284]

Answer:

Step-by-step explanation:

Its H because a square has 4 sides and 58 divided by 4 is 14.5

8 0

3 years ago

An online video streaming service offers two different plans for unlimited streaming, Plan A has a one-time $25

skelet666 [1.2K]

Answer:

In 6 months (at the fifth month they are equal in price)

Step-by-step explanation:

Set the month as x.

Plan A's equation: 8x + 25

Plan B's equation: 12x + 5

8x + 25 < 12x + 5

Solve.

-4x < -20

x > 5

In 6 months (at the fifth month they are equal in price)

7 0

3 years ago

Customers arrivals at a checkout counter in a department store per hour have a Poisson distribution with parameter λ = 7. Calcul

IgorLugansk [536]

Answer:

(1)14.9% (2) 2.96% (3) 97.04%

Step-by-step explanation:

Formula for Poisson distribution: $P(k) = \frac{\lambda^ke^{-k}}{k!}$ where k is a number of guests coming in at a particular hour period.

(1) We can substitute k = 7 and $\lambda = 7$ into the formula:

$P(k=7) = \frac{7^7e^{-7}}{7!}$

$P(k=7) = \frac{823543*0.000911882}{5040} = 0.149 = 14.9\%$

(2)To calculate the probability of maximum 2 customers, we can add up the probability of 0, 1, and 2 customers coming in at a random hours

$P(k\leq2) = P(k=0)+P(k=1)+P(k=2)$

$P(k\leq2) = \frac{7^0e^{-7}}{0!} + \frac{7^1e^{-7}}{1!} + \frac{7^2e^{-7}}{2!}$

$P(k \leq 2) = \frac{0.000911882}{1} + \frac{7*0.000911882}{1} + \frac{49*0.000911882}{2}$

$P(k\leq2) = 0.000911882+0.006383174+0.022341108 \approx 0.0296=2.96\%$

(3) The probability of having at least 3 customers arriving at a random hour would be the probability of having more than 2 customers, which is the invert of probability of having no more than 2 customers. Therefore:

$P(k\geq 3) = P(k>2) = 1 - P(k\leq2) = 1 - 0.0296 = 0.9704 = 97.04\%$

4 0

3 years ago

What is the midpoint of this ?

dybincka [34]

Answer:

M(-2; -5)

Step-by-step explanation:

7 0

2 years ago

A grocery store only sells eggs by the dozen.There are 12 eggs in one dozen eggs.If there are 624 eggs in stock how many dozens

Ratling [72]

Work:

624 divided by 12 equals 52

answer:

52 dozens

3 0

3 years ago