Answer:
−
7
−
√
145
6
,
−
7
+
√
145
6
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.
Answer:
18/96
Step-by-step explanation:
in order to solve this we can multiply them but we have to multiply by the reciprocal of the second fraction. like this:
9/12*9/8
what i did is i flipped the second fraction and this gives us the reciprocal and allows us to just multiply across and get our answer.
hope this helps
1. The interest would be $332.80 and the balance of the account would be $2,932.80.
2. The interest would be $1,912.50 and the balance of the account would be $9,412.50
