D- opposite of the right angle
Yes, since adding two like variables will always result in the same variable.(i.e. x+x=2x not x^2). Any expression with the highest variable being to the power of 1 (or just x) is ALWAYS a linear expression.
Answer: Option 'D' is correct.
Step-by-step explanation:
Since we have given that

and

So, we need to find,

(∵they are independent events .)

So, option 'D' is correct.
Since volunteers can be of any sexe (no precision given in your problem), then we can consider the question as how many group of 6 we can make with 12 persons:
It's a combination of 6 chosen among 12
¹²C₆ = (12!)/(6!).(12-6!)
²C₆ = (12!)/(6!).(6!)<span>
</span>¹²C<span>₆</span> = 924 Ways
Step-by-step explanation:
the option A is the binomial.
hope this helps you.