Divide 210kg in the the ratio 3:4
1 answer:
Answer:
90: 120
Step-by-step explanation:
You have to divide it in 7 parts for the new one, so to find one part, you can do:
210 / 7 = 30 kg.
Then, the ratio would be 3 * 30 : 4 * 30 which is equal to 90: 120
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If the legs are length a and b and hyptonuse is c then
a²+b²=c²
so
if the legs are 20 and 21 and the hypotnuse is x then
20²+21²=x²
400+441=x²
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Answer:1/8
Step-by-step explanation:cuz
Answer:

Step-by-step explanation:
It is given that,
Magnitude of a A, 
magnitude of B, 
The angle betwern a and b is 
Dot product,

So, a.b is equal to 0.
46m - 33m = -28 - 11
13m = -39
m =-3