We first must calculate how many ways 2 oblects can be chosen from 5.
combinations = 5! / 2! * (5-2)!
combinations = 5*4 / 2
combinations = 10
There are 10 ways to choose the 2 buttons and 5 ways to choose the final butto so there are 10 * 5 = 50 different ways.
Source
1728.com/combinat.htm
Answer:
x = 43°
Step-by-step explanation:
The chord- chord angle AED is half the sum of the arcs intercepted by the angle and its vertical angle, that is
x = (54 + 32)° = × 86° = 43°
Answer:
2.22
Step-by-step explanation:
Determinant = b² - 4ac = (-10)² + 4*1*25 = 100 - 100 = 0
So it has 1 solution.
Answer is D
Answer:15
Step-by-step explanation:
X = 19. 19-4 = 15