A) 42x-12
6*7=42. 6*2=12
b) 21y
11+4+6=21
Answer:
x=4²-((3×2)÷2)
x=13
Step-by-step explanation:
assuming this is a right triangle (90dgr)
area of the square... a×a
area of the right triangle..= (width×height) ÷2
Answer:
1764 x 17 = 29,988
Answer:
She can choose her electives in 20 ways.
Step-by-step explanation:
The order in which she chooses the courses is not important, which means that the combinations formula is used to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.

How many ways can she choose her electives?
3 electives from a set of 6. So

She can choose her electives in 20 ways.
Answer:god bless you❤️
Step-by-step explanation: