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4 years ago

What is the equation of this line in standard form? −8x+7y=25 −9x+8y=−23 −8x+9y=−23 −8x+9y=23

1 answer:

5 0

<span>−8x+7y=25 is already in standard form, altho some people would prefer to re-write it as

</span><span>−8x+7y-25 = 0.

You have shared 4 equations here. Next time, please separate them with commas or semi colons, or type just 1 equation per line, for increased clarity. Thanks.</span>

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A. what is the probability that a service time is less than or equal to one minute (to 4 decimals)?

IRINA_888 [86]

The complete question says:
"Wendy's restaurant has been recognized for having the fastest average service time among fast food restaurants. In a benchmark study, Wendy's average service time of 2.2 minutes was less than those of Burger King, Chick-fil-A, Krystal, McDonald's, Taco Bell, and Taco John's (QSR Magazine website, December 2014). Assume that the service time for Wendy's has an exponential distribution.

a. What is the probability that a service time is less than or equal to one minute (to 4 decimals)?"

The exponential distribution probability is given by the formula:

$P(T \leq t) = 1 - e^{-\lambda t}$

where:

λ = average in unit time = 1/2.2 = 0.45 services per minute

t = time requested = 1 minute

$P(T \leq 1) = 1 - e^{-0.45}$

p(T ≤ 1) = 0.3624

Hence, <span>the probability that a service time is less than or equal to one minute is p = 0.3624, which means 36.24%.</span>

7 0

3 years ago

What 89 divided by 2

swat32

lol its

Hope this helps XD

4 0

4 years ago

You have 10 pennies in your pocket. Of those pennies, 3 are Canadian. Suppose you pick a penny out of your pocket at random. Fin

storchak [24]

The answer is: 3
--
10

8 0

3 years ago

Read 2 more answers

1) Which part of a circle is a portion of the boundary of a circle?

Alexxx [7]

Answer:

A. arc

Step-by-step explanation:

The circumference is the entire boundary of a circle.

A portion of the circumference is called an arc.

7 0

2 years ago

Given the following: P(A) =0.3 P(B) = 0.2 P(A OR B) = 0.5 P(A AND B) = 0 Which of the following is true?a. A and B are disjoint.

erastova [34]

Answer:

a. A and B are disjoint

Step-by-step explanation:

We know that P(A and B)=0, It means that event A and event B have nothing in common and it means that event A and event B are disjoints events.

The event A and event B are independent if

P( A and B)= P(A)*P(B)

P(A)*P(B)=0.3*0.2=0.06

So, P(A and B)≠P(A)*P(B)

Hence events A and B are not independent.

Option a is A and B are disjoints which is correct

Option b is A and B are neither disjoints nor independent which is partially false as A and B are disjoints event.

Option c states that A and B are independent which is clearly false.

Option d states that A and B are disjoints and independent which is partially false as A and B are not independent.

Hence the correct option is option A.

5 0

4 years ago