The answer I got was 280 calories. I got that by dividing 200 by 50. Which I then got 4. Then, I multiplied 4 by 70 yo get 280 calories.
Its in the tens place so the unit value is 30
The second one the unit rate is 2.05 i think
I think the answer to your question is It is rational and equal to 12. Hope this helps!
Consider, in ΔRPQ,
RP = R (Radius of larger circle)
PQ = r (radius of smaller circle)
We have to find, RQ, by Pythagoras theorem,
RP² = PQ²+RQ²
R² = r²+RQ²
RQ² = R²-r²
RQ = √(R²-r²
Now, as RQ & QS both are tangents of the smaller circle, their lengths must be equal. so, RS = 2 × RQ
RS = 2√(R²-r²)
