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2 years ago

What is the slope of a line thatpasses through the points (2,3) and (5,20)

Mathematics

1 answer:

frosja888 [35]2 years ago

3 0

Answer:

20-3=17

5-2=3

17/3 is... 5 and 2/3

Step-by-step explanation:

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2 years ago

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2 years ago

2t+8>-4(t+1)<br> T>___<br> **The sign is meant to be more than or equal to.**

Mrrafil [7]

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3 years ago

Suppose that the length of a phone call in minutes is an exponential random variable with parameter λ = 1/ 8. If someone arrives

Elis [28]

Answer:

a) P=0.535

b) P=0.204

c) P=0.286

Step-by-step explanation:

The exponential distribution is expressed as

$F(x>t)=e^{-\lambda t}$

In this example, λ=1/8=0.125 min⁻¹.

a) The probability of having to wait more than 5 minutes

$F(x>5)=e^{-0.125*5}=e^{-0.625}=0.535$

b) The probability of having to wait between 10 and 20 minutes

$F(1020)=e^{-0.125*10}-e^{-0.125*20}\\\\F(10$

c) The exponential distribution is memory-less, so it is independent of past events.

If you have waited 5 minutes, the probability of waiting more than 15 minutes in total is the same as the probability of waiting 15-5=10 minutes.

$F(x>15|t^*=5)=F(x>15)/F(x>5)=\frac{e^{-0.125*15}}{e^{-0.125*5}}=e^{-0.125*(15-5)}\\\\ F(x>15|t^*=5)=e^{-0.125*(10)}=F(x>10)=0.286$

5 0

2 years ago

He price of a shampoo, cut, and style at the hairstyling salon where you work is $18.00. You generally get a 20% tip from each c

Marianna [84]

Answer:

total earning is $64.80

Step-by-step explanation:

Price of one work = $18.00

Payment by owner = 1/4 of $18.00

= 18/4

= $4.50

Earning by tip = 20% of $18.00 = 20/100 x18 = 3.60

Total earning from one work = $4.50+$3.60

= $ 8.10

Earning from 8 tips = 8x8.10

= $64.80

4 0

2 years ago