Answer:
10
Step-by-step explanation:
the answer is 10 you half to divide 40 and u get 4
Answer:
the answer is 140 pieces of paper
Step-by-step explanation:
Answer:
a)8
b)13
Step-by-step explanation:
a) ar = c
a^2+b^2=c^2
4^2+7^2=c^2
16+49 = c2
c =
~8
b) sa= c
a2+b2=c2
7^2 + (15-4)^2
49+121 = c2
c=
= 13
I hope im right!!
It's not possible to know, because you're not letting us see
the accompanying right triangle.
Answer:

Step-by-step explanation:
Given



Required
Determine 
From laws of probabilities:

In this case:


