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tamaranim1 [39]
3 years ago
13

What is the probability that something with a 2.18% chance of occurring happens 3 times out of 194 events

Mathematics
1 answer:
k0ka [10]3 years ago
4 0

Answer:

0.18431525 = 18.4%

Step-by-step explanation:

General Formula :

total trials Cn⋅p(success)^n⋅p(fail)^total−n

1198144* (.0218)^3 * (1-.0218)^191

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5and 2/5 plus 2 and 3/5
HACTEHA [7]

Answer:

8

Step-by-step explanation:

Add the whole numbers:

5 + 2 = 7

Add the fractions:

2/5 + 3/5 = 5/5 = 1

Add these together:

7 + 1 = 8

Hope this helps!

4 0
3 years ago
a man buys and old bicycles for Rs 1850 and spend Rs 150 to repair it if he sells it at 25% profit find its selling price​
AysviL [449]

Answer:

Rs 2,500

Step-by-step explanation:

He has spent Rs1850 + Rs150 = Rs2000

if Rs2000 = 100%

             X = 125%

By cross multiplication, we get;

100x = 2000 * 125

x = 250000/100

x = Rs 2,500

5 0
3 years ago
3x(2ab - b) - 2y(2a - b)<br>please i need help!!​
Salsk061 [2.6K]

Answer:

6abx-3bx-4ay+2by

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
(8m-3n)^2 - (4m+3n)^2​
natulia [17]

Answer:

48m^2-72mn

Step-by-step explanation:

We need to solve (8m-3n)^2 - (4m+3n)^2

We know that,

(a+b)^2=a^2+b^2+2ab\\\\(a-b)^2=a^2+b^2-2ab

Using the above formula,

(8m-3n)^2 - (4m+3n)^2=(8m)^2+(3n)^2-2(8m)(3n)-[(4m)^2+(3n)^2+2(4m)(3n)]\\\\=64m^2+9n^2-48mn-(16m^2+9n^2+24mn)\\\\=64m^2+9n^2-48mn-16m^2-9n^2-24mn\\\\=48m^2-48mn-24mn\\\\=48m^2-72mn

So, the final answer is 48m^2-72mn.

4 0
3 years ago
What does step mean I'm mathematics​
3241004551 [841]

Answer:

In mathematics, a function on the real numbers is called a step function (or staircase function) if it can be written as a finite linear combination of indicator functions of intervals. Informally speaking, a step function is a piecewise constant function having only finitely many pieces.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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