Answer:
2.5
Step-by-step explanation:
Answer:
The shortest walking route is through the diagonal AC: 102.89m
Step-by-step explanation:
One can go from A to C using 2 paths:
- ADC or ABC
- using diagonal AC and half of that inner circle.
We need to compute the length of each path.
1) ADC=AD+DC=80+50=130m
2) AC²=AD²+DC²=80²+50⁵=6400+2500= 8900m²
AC=sqrt(8900)=94.34m.
Note that the diagonal AC has a missing segment, whose length is the diameter of the inner circle. So the straight line has a length of: AC-d=94.34-15=79.34m.
Perimeter of half the circle=pi×r= 3.14×(15/2)= 3.14×7.5=23.55m
So, if one is using the diagonal to go from A to C, then he has to walk:
79.34+23.55=102.89m
Comparing the two routes: 130m vs 102.89m, we notice that the route using the diagonal AC is shorter.
This one looks tricky let me find out
Answer:
see explanation
Step-by-step explanation:
The given formula is a recursive formula which allows a term in the sequence to be found using the previous term.
Given
= 
+ 3 with A₁ = 2, then
A₂ = A₁ + 3 = 2 + 3 = 5
A₃ = A₂ + 3 = 5 + 3 = 8
A₄ = A₃ + 3 = 8 + 3 = 11
A₅ = A₄ + 3 = 11 + 3 = 14
The first 5 terms in the sequence are 2, 5, 8, 11, 14
