Answer:
3/5
Step-by-step explanation:
12 out of the twenty are mallards.
12/20=0.6
3/5=0.6
Answer: B , c, E
Step-by-step explanation:
Given that ,
∡J=90° , ∡k=30° , ∡L=60°
In the triangle ΔJKL,
tan ∠L = tan 60°
⇒ JK÷JL= √3
⇒JK = √3JL
Thus, A is incorrect and B is correct
Again,
cos ∠L = cos60° =0.5
⇒JL/KL = 1÷2
⇒ JL = (1÷2)KL
⇒JL×2= KL
⇒ KL=2JL
Hence, F & D are incorrect and C is correct
Earlier we got,
JK = √3.JL
⇒JL=JK÷√3
and JL= (1÷2).KL
So, JK÷√3=(1÷2)KL
⇒JK÷√3×2 = KL
⇒2.JK= √3KL
⇒JK = (√3÷2).KL
hence E is correct
Answer:
1/3
Step-by-step explanation:
7 x 3 = 21
21 / 3 = 7
To determine the number of goals the group achieve in a given quarter (q), multiply the total goals they generally have (n) by their percent success (r)
q = n x r
Substituting the given,
q = (25 objectives) x 0.80 = 20
Thus, the group is expected to achieve 20 goals.

There are 4 teams in the contest.
Hope this helps. - M