2 years ago

Plz help meeee !!!!!

Mathematics

1 answer:

olya-2409 [2.1K]2 years ago

7 0

I say that it is A because I did this did this before

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Could someone help me with this question? Leave an explanation of how you got this answer.

Alex73 [517]

I want to say either 1/2 or 1/12 but i cant explane sorry

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3 years ago

Can u guys pls help me on this question and pls explain how u got the answer

Gekata [30.6K]

First do 10x7 =70
Since there’s 4 sides with this measure mentally do 70x8=560
560
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647sq feet

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2 years ago

Read 2 more answers

Bobs supermarket sells red apples and green apples at the ratio of 5:3.

nika2105 [10]

Answer:

10 red apples and 6 green apples

Step-by-step explanation:

first you multiply 5×2 to get 10 apples

then you multiply 3×2 to get 6 apples

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2 years ago

What is the value of c? 13c−22=−17c+14

elena-s [515]

13c-22=-17c+14
-14 -14
13c-36=17c
-13 -13
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3 years ago

The time between arrivals of taxis at a busy intersection is exponentially distributed with a mean of 10 minutes. (a) What is th

Sindrei [870]

Answer:

a) 0.0025

b) 0.9975

c) 23.03 minutes

d) 23.03 minutes

Step-by-step explanation:

Let X be the random variable that measures the time waited for a taxi.

If X is exponentially distributed with a mean of 10 minutes,then the probability that you have to wait more than t minutes is

$\large P(X>t) = e^{-t/10}$

1 hour = 60 minutes, so the probability that you wait longer than one hour is

$\large P(X>60)=e^{-6}=0.0025$

Due to the “memorylessness” of the exponential distribution, the probability that you have to wait 10 or less minutes after you have already waited for one hour, is the same as the probability that you have to wait 10 or less minutes

$\large P(X\leq 10)=1-e^{-6}=0.9975$

We want x so that

P(X>x)=0.1

$\large e^{-x/10}=0.1\rightarrow -x/10=ln(0.1)\rightarrow x=-10ln(0.1)=23.03\;minutes$

We want P(X<x)=0.9

$\large 1-e^{-x/10}=0.9\rightarrow e^{-x/10}=0.1\rightarrow x=-10ln(0.1)=23.03\;minutes$

4 0

3 years ago