Answer:
(a) 3x (b) 3x (c) 20 (d) 181
Step-by-step explanation:
Answer:
notify me when you finish the question so i can answer ok
Step-by-step explanation:
I believe the answer for the second one is B ( I took this last year but I think it’s that one)
Answer:
Any real number strictly larger than 9 and strictly less than 21.
Step-by-step explanation:
By triangle inequality, the sum of the lengths of any two sides are greater than the length of the third side.
We therefore could set up three inequalities.
x+6>15, x+15>6, 15+6>x
Solving these, we get x>9, x>-9, x<21 i.e. 9 < x < 21.
A triangle is only possible if you can add any two sides and have the sum be larger than the third side. This happens with choice B, C, and D.
With choice A, we have 11+14 = 25 not larger than the third side of 25. So a straight line is possible and it's not possible to draw a triangle with these dimensions.
Answer: Choice A
note: This is using the triangle inequality theorem
