Answer:
None of the above
Step-by-step explanation:
3^3=81
-3^3=-81
6^3=216
-6^3=-216
5^3=125
Answer:
360
Step-by-step explanation: 360 is the least
Answer:
x>10
Step-by-step explanation:
-2x<24-4
-2x<20
x>10
Answer:
d = 80 ft
Step-by-step explanation:
Start with angle BCA, tan(BCA) = 30/15 so BCA = 63.43 degrees.
BCA = ECD since they are opposite angles.
tan ECD = d/40
40 tan(63.4degrees) = d
d = 80 ft
Alternatively, you can use similar triangles since the angles are the same, BCA = ECD, CED = CAB, and CBA = EDC. In that case use proportions to get 30/15 = d/40 so 2 = d/40 and d = 80.