Plzzz help me it would mean a lot I willl mark you brainliest if you are right plz and ty

Mathematics

2 answers:

emmasim [6.3K]3 years ago

8 0

Answer:

Step-by-step explanation:

x÷3=15

=×*1/3=15

=x=15*3

x=45

gayaneshka [121]3 years ago

6 0

Answer:

15 x 3 = 45

So, x = 45

Pls mark the brainliest :)

Step-by-step explanation:

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What fraction of 45 is 20

iogann1982 [59]

Answer:

2.25×20=45

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8 0

3 years ago

Problem: The mean number of bankruptcies filed per minute in the ` States in a recent year was about two. Find the probability t

tino4ka555 [31]

The number of companies is quite large. That is, n is quite large.
The probability that a company declares bankruptcy is quite small , p is quite small.
np = the mean number of bankruptcies = 2 = a finite number.
Hence we can apply Poisson distribution for the data.
P (x=5 | mean =2) = e-2 25/5! = e-2 * 32/120 = 0.036089
Alternatively
=poisson(5,2,0) = 0.036089
P(x≥ 5 | mean =2) = 1- P( x ≤ 4) = 1- e-2 (1+2+22/2!+23/3!+24/4!)= 1-e-2 (1+2+2+8/6+16/24)= 1-e-2(7)
=0.052653
Alternatively
= 1- poisson(4,2,1) =0.052653
P(X > 5 | mean =2) = 1- p(x
≤ 5) =1- e-2 (1+2+22/2!+23/3!+24/4!+25/5!)= 1-e-2(7+4/15)
=0.016564
alternatively=1-poisson(5,2,1)
=0.016564

4 0

3 years ago

Which functions are continuous at x= -5? Select all that apply.

Assoli18 [71]

Answer:

option B and C

Step-by-step explanation:

Lets check each function

Lets simplify $\frac{x^2-25}{x+5}$