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Elina [12.6K]
3 years ago
10

The length of time for one individual to be erved at a cafeteria is a random variable having an ex- ponential distribution with

a mean of 4 minutes. What is the probability that a person will be served in less than/3 minutes on at least 4 of the next 6 days?
Mathematics
1 answer:
777dan777 [17]3 years ago
6 0

Answer:

less than 3

Step-by-step explanation:

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#1 need help asap plzzzzzzzzzzzz
SpyIntel [72]

Answer:

n+4

Step-by-step explanation:

A number would be represented as n

"plus 4" is addition so that would be n+4

fewer and less have the same meaning so that would be a less than sign

so that's how you get n+4

6 0
2 years ago
Estimate this product. 89.65 x 4.75 A 4,500 B 450 C 45 D 4.5 plz hurry
Alona [7]
<u>The correct answer</u> is B.

Explanation:
89.65 is nearly 90.
4.75 is nearly 5.

To estimate the product, we will multiply 90*5, which equals 450.

7 0
3 years ago
Read 2 more answers
A company placed $500,000 in three different investment plans.
Paha777 [63]

Answer:

B. $200,000

Step-by-step explanation:

Let x be the amount placed at 5.5%

3x is the amount placed at 5%

This leaves the rest for the 4.5 %   500000- x - 3x = 500000-4x

Assuming simple interest

I = PRT where I is interest, P is principle, rate is rate and t  is time

Interest for the 5.5% for 1 year is

I = x * .055 * 1 = .055x

Interest for the 5.% for 1 year is

I = 3x * .05 * 1 = .15x

Interest for the 4.5% for 1 year is

I = 500000-4x * .045 * 1 = 22500 - 0.18 x

Add the interest together to get the income for 1 year

.055x+  .15x+22500 - 0.18 x=25,000

Combine like terms

0.025x+22500=25000

Subtract 22500

.025x =2500

Divide by .025

x =100000  

short term notes is 100000

3*x = 300000 = government bonds

The rest is utility bonds 500000- 100000-300000 = 100000

We want how much more in government bond than utility bond

300000 -100000 = 200000

8 0
3 years ago
Read 2 more answers
Given ΔADC and ΔAEB, What is AE?
Scilla [17]

Answer:

AE = 43.2 units

Step-by-step explanation:

As per the given question image, it can be seen that in the  

1.  

2.  is common to both the triangles.

3. Two angles are common, so the third angle  is also equal to .

All the three angles in the  are equal to each other, hence the triangles are similar.

As per the property of similar triangles, the ratio of their sides will be equal.

AB : AC = AE : AD

AC = 88 units

BC = 55 units

AB = AC - AB = 33 units

Let side AE =  units

Side AD = AE + ED

So, AD =  

Using the ratio:

So, AE = 43.2 units

3 0
2 years ago
Jackson was selling cups of lemonade. On Saturday, he sold a total of 14 cups. On Sunday he sold cups at a steady rate of 3 cups
Troyanec [42]

Answer:

15 days

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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