Answer:
Step-by-step explanation:
Explicit formula of the sequence,











What is the situation from the problem
(3x + 1) + (4x - 17) + (5x - 20) = 180
12x - 36 = 180
12x = 216
x = 18
angle a = 55
angle b = 55
angle c = 70
This is an acute isosceles triangle.
Answer:
20 ft
Step-by-step explanation:
If you count how many unit’s there is on the picture then multiply by 2, you get 20
Answer:
2√21
Step-by-step explanation:
1) Simplify.
√84
2) Simplify √84 to 2√21.
2√21