Answer:
B is the answer
Step-by-step explanation:
3/4 a-6=1/4
Multiplying each term by 4
3a-6*4=1
3a-24=1
Answer:
x = 19/2
Step-by-step explanation:
2(x - 7) = 5
Let's divide both sides by 2 so as to isolate (x - 7):
x - 7 = 5/2
Add 7 to both sides to isolate x:
x = 7 + 5/2, or n = 14/2 + 5/2 = 19/2 = x
Position in the sequence triangular number relation
1 1 1 = 1*(1+1)/2
2 3 3 = 2(2+1)/2
3 6 6 = 3(3+1)/2
4 10 10 = 4(4+1)/2
5 15 15= 5(5+1)/2
Call n the position in the sequence, then the triangular number is: n(n+1)/2
Answer is C
Mrs, Nevin can use all of theese fabric for making costume for a school party.
But length of the fabric in C are bigger than she need. So small part of the fabric will not be used after costume prepeared. So shee need to choose between other three variants for prepearing the costume for a school play.
Yes, in that equation its like doing the equation 16 - 16 which equals 0
