length of big square

length of small square

difference between length of two square
=5.2-3.5
=1.7
Answer:
21 matches
Step-by-step explanation:
This is a combination problem where we have to select two member out of 7 members
So we want calculation of 7C2
7C2 = 7!/[(2!)(7-2)!]
(7*6*5*4*3*2*1)/[(2*1) *(5*4*3*2*1]
(7*6)/2 ~ Note everything that easily cancels here!
42/2
21 matches
Answer:
23 Cm(2)
Step-by-step explanation:
Sincerest Apologies if it is incorrect
if it's not 23 it may be:
26 Cm(2)
Answer:
race run = 27.60 km
Step-by-step explanation:
given data
run = 5 %
race = 1.38 km
to find out
how long is the race
solution
we get here how long he race that is here
1.38 ÷ 5 % × 100
= 20
so
race run = 1.38 × 20
race run = 27.60 km