What value for c will make the expression a perfect square trinomial?x2-7x+c

A. -49/4
B. -7/2
C. 49/4
D. 7/2

Answers

Answer 1

Answer: The letter a ..... ......

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Write 6y = x + 5 in standard form using integers. A. –x + 6y = 5 B. –6x + 6y = 30 C. -6x - 6y = 30 D. 6x - 6y = 30

Thu wants to play “Guess My Number,"she states. “When I triple my number and add five ,I get twenty-six.what is my number?" What is her number? Show how you know

Answers

3x + 5=26
subtract 5 from both sides
3x=21
divide by 3
x=7

Her number is 7. You simply subtract 5 from 26 and get 21 then you divide it by 3 and get 7. Basically you are reversing the steps she stated.

In a queueing system, customers arrive once every 3 minutes (standard deviation=4) and services take 2 minutes (standard deviation =6.3) ( Do not round intermediate calculations . Round your answer to three decimal places) What is the average number of customers in the system? customers

Answers

Final answer:

In a queueing system with customer arrivals every 3 minutes and service times of 2 minutes, the average number of customers in the system is calculated to be approximately 0.667

Explanation:

To calculatethe average number of customers in the system, we can use Little's Law, which states that the average number of customers in a stable queueing system is equal to the average arrival rate multiplied by the average time spent in the system.

First, we need to calculate the average arrival rate. Since customers arrive once every 3 minutes, the arrival rate is 1 customer per 3 minutes or 1/3 customers per second.

The total service time is 2 minutes, and the standard deviation is 6.3. Therefore, the average service time is 2 minutes.

Using Little's Law, we multiply the average arrival rate (1/3 customers per minute) by the average service time (2 minutes) to obtain the average number of customers in the system.

Average number of customers in the queue = (1/3) × 2 = 2/3 ≈ 0.667

Answers

Answer:

It has to be in ax^2 + bxy + cy^2

Step-by-step explanation:

It has to be in ax^2 + bxy + cy^2

Julie painted 2/4 of the fence around her house. What are two other ways to name 2/4

Answers

1/2 and you can also say 4/8 which simplifies down to 1/2 and so does 2/4.

Graph the following inequality:

Answers

Answer: the intercept is love , the slope is you , dotted or solid is <3

Step-by-step explanation:

A group of employees bought a get-well gift for a coworker. The gift cost $46.06. If there are 22 employees in the group, how much does each employee need to contribute?