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2 years ago

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The probability that Lexie is on time for a given class is 95%. If there are 32 classes during the semester, what is the best es

timate of the number of times out of 32 that Lexie is on time to class? Round your answer to the nearest integer.

1 answer:

nignag [31]2 years ago

7 0

Answer:

between 31 and 29 classes

Step-by-step explanation:

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Answer:

1. 2025 2. 1728

Step-by-step explanation:

1. To find the area, we have to perform the operation LxWxH. 9 x 15 x 15= 2025.

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3 years ago

The fourth term of a Geometric Progression is 48 and the sixth term is 12. Find the

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Answer:

Common ratio = 1/2 and first term = 384

or common ratio = -1/2 and first term = -384.

Step-by-step explanation:

T6/T4 = r^5 / r^3 where r = the common ratio and T6 and T4 are 6th and 4th terms

r^5 / r^3 = 12/48

r^2 = 1/4

so r = +/- 1/2.

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3 years ago

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3 years ago

Find the domain of the function algebraically:<br><br> <img src="https://tex.z-dn.net/?f=R%28x%29%3D%5Cfrac%7Bx%7D%7Bx%5E%7B2%7D

BigorU [14]

The domain of the function is all real numbers except 2 and -1

Step-by-step explanation:

Domain is the set of inputs of a function on which the function is defined.

Given function is:

$R(x) = \frac{x}{x^2-x-2}$

In case of a function involving fraction, the function is undefined if the denominator is zero so in order to find the domain of the function algebraically , we have to find the values on which the function will be undefined

$x^2-x-2 = 0\\x^2-2x+x-2 = 0\\x(x-2)+1(x-2) = 0\\(x+1)(x-2) = 0\\x+1 = 0 => x=-1\\x-2=0 = > x=2$

The function will be undefined on x=-1 and x=2

So,

The domain of the function is all real numbers except 2 and -1

Keywords: Domain, functions

Learn more about domain and functions at:

#LearnwithBrainly

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4 years ago