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Answer:
The first one B(1and 2). The second is D( 5/2)
Step-by-step explanation:
I think the first one is between 1 and 2 because if you divide 5 and 2 it will be 2 remainder 1. Then the second one is D i.e 5/2. Hope it was helpful?
Answer:
6
Step-by-step explanation:
Given expression:
a varies directly as b;
a ∝ b
So;
a = kb where k is the constant of proportionality;
if a= 7 and b = 2;
7 = 2k
k =
Now, find b when a = 21
21 =
x b
b = 6
solution:
we know that ,
u.v = ΙuΙ ΙvΙcosθ
here,
θ =60° (since the given triangle is equilateral triangle)
u.v = ΙuΙ ΙvΙcos60°
= 1 x 1 x 1/2
u.v = 1/2
now, u.w = ΙuΙ ΙwΙcosθ
= ΙuΙ x cos(60x2)
u.w = -1/2
Answer:
100
Step-by-step explanation: