Answer:
(a) 350
(b) 175
(c) 21
(d) 196
Step-by-step explanation:
Number of females = 7
Number of males = 5
Total ways of selecting r items from n items is

(a)
Total ways of selecting 3 females and 2 males.




(b)
Total ways of selecting 4 females and 1 male.



(c)
Total ways of selecting 5 females.



(d)
Total ways of selecting at least 4 females.
Total ways = 4 females + 5 females


Answer:
28 beads were used to make the bracelet. 7 beads were not yellow.
Step-by-step explanation:
3/4 beads used to make the bracelet are yellow
If 21 beads are 3/4 of the bracelet and yellow
1/3 of the 21 beads would be 1/4 of the bracelet
7 beads are 1/3 of 21 beads
7 × 4 = 28 beads
B) AAS Congruence Theorem
(correct answer i promise)
explanation:
The Angle Angle Side postulate (often abbreviated as AAS) states that if two angles and the non-included side one triangle are congruent to two angles and the non-included side of another triangle, then these two triangles are congruent.