Answer:
£1.22
Step-by-step explanation:
Total cost: 5.95+1.62+0.25+2(0.48)=8.78
Change: 10-8.78=1.22
I believe it’s when the shapes are similar, which means they have the same ratio of lengths
Answer:
me
Step-by-step explanation:
Answer:
1:3
Step-by-step explanation:
That ratio would be 5 :15 or 1:3
Answer:
a) 3
b) 9
c) 81
d) x
Step-by-step explanation:
We know the properties of log function as:
1) log(AB) = log(A) + log(B)
2) 
3) log(aᵇ) = b × log(a)
also,
4) 
Given:
a. y = 
Now,
taking log both sides, we get
log(y) = 
using 3, we get
log(y) = log₃(3) × log(3)
using 4, we get
log(y) =
× log(3)
or
log(y) = 1 × log(3)
taking anti-log both sides
y = 3
b. y = 
Now,
taking log both sides, we get
log(y) = 
using 3, we get
log(y) = log₃(9) × log(3)
using 4, we get
log(y) =
× log(3)
or
log(y) = log(9)
taking anti-log both sides
y = 9
c. y = 
Now,
taking log both sides, we get
log(y) = 
using 3, we get
log(y) = log₃(81) × log(3)
using 4, we get
log(y) =
× log(3)
or
log(y) = log(81)
taking anti-log both sides
y = 81
d. y = 
Now,
taking log both sides, we get
log(y) = 
using 3, we get
log(y) = log₃(x) × log(3)
using 4, we get
log(y) =
× log(3)
or
log(y) = log(x)
taking anti-log both sides
y = x