-4= Contraction
2.5=Expansion
2/3= Contraction
-3/4= Contraction
Best way to solve this, if the scale factor is less than one, is a contraction. If it is greater than one, than it is an expansion.
Answer:
3-B,E
4-. ( 1/8)×π×100
arc length of an enclosed circle is 2πr where r is the radius
the atc length of is proportional to the angle subtended at the centre . i.e for this arc it is 1/4th (90°/360°) of the arc length of an enclosed circle.
it is the same relationship with area of a sector
Answer:
37.5%
Step-by-step explanation:
do 3 divided by 8
Answer:
There are 80 animals.
Step-by-step explanation:
Let the number of cats be 4x and the number of dogs be x.
4x = 64
x = 64 ÷ 4
= 16
Total no. of animals = 4x + x
= 5x
5x = 16 × 5
= 80
7/8+9/10=71/40=1 31/40
1/4+2/3=11/12
1/2+1/4 is different from 1/2+1/3 because
1/2+1/4= 2/4+1/4= 5/1 =1 1/4
1/2+1/3=3/6+2/6=5/6