3 years ago

ILL MARK AS BRAINLESS PLS HELP HURRY

Mathematics

1 answer:

lina2011 [118]3 years ago

5 0

Answer:

white to grey is 13:12

Step-by-step explanation:

The grid has 25 squares, shade 12 of them grey

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her copy has dimensions 2 inches by 1.5 inches the scale of the copy is 1 in.:40 cm. what is the area

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2 x 1.5 x 1 x 40 =

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4 years ago

3x-4=4 What is the value of X

Tom [10]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

A drunk person is walking on the road. With probability 0.6 he takes a step forward and with probability 0.4 he takes a step bac

Molodets [167]

If a person after 10 steps is at his starting position, then this person takes 5 steps forward and 5 steps backward.

This is a binomial distribution with

probability to take step forward $p=0.6;$
probability to take step backward $q=0.4;$
$n=10.$

Then

$Pr(\text{5 steps forward and 5 steps backward})=C_{10}^5p^5q^5=\\ \\=\dfrac{10!}{5!(10-5)!}\cdot (0.6)^5\cdot (0.4)^5=\dfrac{10!}{5!\cdot 5!}\cdot (0.6\cdot 0.4)^5=\\ \\=\dfrac{5!\cdot 6\cdot 7\cdot 8\cdot 9\cdot 10}{5!\cdot 2\cdot 3\cdot 4\cdot 5}\cdot (0.24)^5=7\cdot2\cdot 9\cdot 2\cdot (0.24)^5=252\cdot (0.24)^5=0.2006581248.$