Answer:
the surface area is 208
Step-by-step explanation:
formula for surface area is A = 2 (w*l + h*l + h*w )
A = 2 ( 4*8 + 6*8 + 6*4 )
A = 2 ( 32 + 48 + 24 )
A = 2 ( 104 )
A = 208
Answer:
m= x-45
Step-by-step explanation:
M represents money.
X equals the amount of the money in the account.
-45 represents what he deposited from his account.
This is a geometric sequence because each term is a constant multiple, called the common ratio, of the previous term. In this case the common ratio, noted as "r", is:
8/-2=-32/8=128/-32=r=-4
The first term is -2
Any geometric sequence can be expressed as:
a(n)=ar^(n-1), a=initial term, r=common ratio, n=term number.
Since we know r and a for this problem already we can say:
a(n)=-2(-4)^(n-1)
Fraction of girls = 1 - 3/7 = 4/7
4/7 is equivalent to 72 girls
1/7 .. .. ............. 72 / 4 = 18
Total number of children = 7/7 = 18*7 = 126 Answer
