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yuradex [85]
3 years ago
12

suppose that one student is randomly selected during lunch time. what is the experimental probability if students the brought lu

nch from house is 55 and students that order school lunch is 45
Mathematics
1 answer:
yanalaym [24]3 years ago
4 0

Answer:

p(A) = 0.55

p(b) = 0.45

Step-by-step explanation:

Experimental probability = \frac{Number of favorable outcomes}{Total number of outcomes}

total students = 55 + 45   ⇒ 100

let A be the probability that students brought lunch from house = \frac{55}{100} ⇒ 0.55

let B be the probability that students order school lunch = \frac{45}{100} ⇒ 0.45

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<u>Step-by-step explanation:</u>

Use the multiplication formula for derivatives:

y = a · b       →     y' = a'b + ab'

<u>y = x⁶ · f(x)     </u>  

a = x⁶          b = f(x)

a' = 6x⁵       b' = f'(x)

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y' = 6x⁵ f(x) + x⁶ f'(x)

***************************************************************

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<u>Step-by-step explanation:</u>

Use the division formula for derivatives:

y=\dfrac{a}{b}       →     y' = \dfrac{a'b - ab'}{b^2}

y=\dfrac{f(x)}{x^9}\\\\a=f(x)\qquad b=x^9\\\\a'=f(x)\qquad b'=9x^8\\\\y'=\dfrac{a'b-ab'}{b^2}\\\\y'=\dfrac{x^9f'(x)-9x^8f(x)}{(x^9)^2}\\\\.\ =\dfrac{x^9f'(x)-9x^8f(x)}{x^{18}}\\\\\text{factor out }x^{8}: y'=\dfrac{xf'(x)-9f(x)}{x^{10}}

Note: You can also move the denominator to the top (it will have a negative exponent) and use the multiplication formula for derivatives.

5 0
3 years ago
The height of a tree was 18 ft at the beginning of the year. At the end of the year, the tree is 19.5 ft tall.
Yuliya22 [10]
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6 0
3 years ago
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5 0
3 years ago
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\rule{300}{1}\\\dashrightarrow\large\blue\textsf{\textbf{\underline{Given question:-}}}

<em>Translate into an algebraic equation:-</em>

<em>The quotient of a number and 5.</em>

<em />

<em />\dashrightarrow\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}

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Here, we have the quotient of a number and 5, so we divide the number by 5; let the number be d.

So the quotient of d and 5 looks as follows:-

\bold{\dfrac{f}{5}}

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\rule{300}{1}

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4 years ago
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