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nirvana33 [79]
3 years ago
10

A coin is biased to display heads 75% of the time . It’s tossed 20times and the out comes are recorded the most improbable simul

ation for this coin is __ heads
9
13
14
15
Mathematics
1 answer:
Sergio [31]3 years ago
7 0

Multiply the number of tosses by the percent of heads:

20 tosses x 0.75 = 15

The answer is 15.

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I need help with this question
zvonat [6]

Answer:

Option B is correct

Step-by-step explanation:

Given:

f(x) = -20x^2 +14x +12 and

g(x) = 5x - 6

We need to find f/g and state its domain.

f/g = -20x^2 +14x +12/5x - 6

Taking -2 common from numerator:

f/g = -2(10x^2 - 7x - 6) / 5x -6

Factorize 10x^2 - 7x - 6= 10x^2 - 12x +5x -6

Putting in the above equation

f/g = -2(10x^2 - 12x +5x -6)/ 5x -6

f/g = -2(2x(5x-6) + 1 (5x-6)) / 5x-6

f/g = -2 ( (2x+1)(5x-6))/5x-6

cancelling 5x-6 from numerator and denominator

f/g = -2(2x+1)

f/g = -4x -2

The domain of the function is set of all values for which the function is defined and real.

So, our function g(x) = 5x -6 and domain will be all real numbers except x = 6/5 as denominator will be zero if x=5/6 and the function will be undefined.

So, Option B is correct.

8 0
3 years ago
Read 2 more answers
What function can be used to model data pairs that have a common ratio?
liubo4ka [24]
Correct answer is C.

For example 2, 4, 8, 16, 32...

2=\frac{4}{2} = \frac{8}{4} = \frac{16}{8} = \frac{32}{16} =...

y=2^x
4 0
3 years ago
Read 2 more answers
Question: Which of the following is NOT an example of eCommerce? A. downloading an app through iTunes B. uploading a picture of
OLga [1]
I will say the answer will be B

6 0
2 years ago
Explain why a two-dimensional net is useful for finding the surface area of a three-dimensional figure. Answer as soon as possib
Allushta [10]
A two-dimensional net is useful because it flattens the 3-d figure so that you can see all the faces of the figure.  You can calculate the area of each face to find the surface area. 
5 0
3 years ago
the sum of two numbers is 104. the larger is one less than twice the smaller number. find the numbers
exis [7]

Answer:

The larger number is 69 and the smaller number is 35.

Step-by-step explanation:

Find the equations. Here x will be the larger number and y will be the smaller number.

x + y = 104

x = 2y -1

Substitute:

(2y -1) + y = 104

3y = 105

y = 35

x = 2(35) - 1

x = 70 - 1

x = 69

The larger number is 69 and the smaller number is 35.

8 0
3 years ago
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