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irakobra [83]
3 years ago
11

A perfect is to be chosen from a class of 12 girls and 8 boys. What is the probability that the prefect is a girl?​

Mathematics
2 answers:
maxonik [38]3 years ago
8 0

Answer: 12/20

Step-by-step explanation:

sineoko [7]3 years ago
8 0
Hopes this helps:

Answer: 8/15

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What is the answer for this math problem 2 k -13k + c
lozanna [386]

Answer: c-11k

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6 0
3 years ago
What is 21 X 21 ???? <br> 3 3​
Sergeeva-Olga [200]

Answer: 441

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21 x 21 = 441

8 0
2 years ago
Read 2 more answers
Help needed on this composition math problem
Marrrta [24]

Given that f(x) = x/(x - 3) and g(x) = 1/x and the application of <em>function</em> operators, f ° g (x) = 1/(1 - 3 · x) and the domain of the <em>resulting</em> function is any <em>real</em> number except x = 1/3.

<h3>How to analyze a composed function</h3>

Let be f and g functions. Composition is a <em>binary function</em> operation where the <em>variable</em> of the <em>former</em> function (f) is substituted by the <em>latter</em> function (g). If we know that f(x) = x/(x - 3) and g(x) = 1/x, then the <em>composed</em> function is:

f\,\circ\,g \,(x) = \frac{\frac{1}{x} }{\frac{1}{x}-3}

f\,\circ\,g\,(x) = \frac{\frac{1}{x} }{\frac{1-3\cdot x}{x} }

f\,\circ\,g\,(x) = \frac{1}{1-3\cdot x}

The domain of the function is the set of x-values such that f ° g (x) exists. In the case of <em>rational</em> functions of the form p(x)/q(x), the domain is the set of x-values such that q(x) ≠ 0. Thus, the domain of f ° g (x) is \mathbb{R} - \{\frac{1}{3} \}.

To learn more on composed functions: brainly.com/question/12158468

#SPJ1

3 0
1 year ago
Gabrielle is 9 years younger than Mikhail. The sum of their ages is 75 . What is Mikhail's age?
Damm [24]

Answer: We know Gabrielle is 9 yrs younger than Mikhail hence it will be x-9 yrs. Sum of their ages is 87. Mikhail's age is 48 yrs.

HOPE THIS HELPS

6 0
2 years ago
Mr. Jones is four times as old as his son. Six years ago he was ten times as old as his son. How old is the son now?
Advocard [28]

Answer:

After 16 years …mr James age =4X+16 and his son's age will be X+16

As per the question in 16 years his age will be 2 twice

(4X+16)=2(X+16)so by simplifying this we will get 2X=16..and X=16/2=8

Step-by-step explanation:

6 0
3 years ago
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