Answer:
y = x - 5
Step-by-step explanation:
![y - ( - 5) = x - 0](https://tex.z-dn.net/?f=y%20-%20%28%20-%205%29%20%3D%20x%20-%200)
![y + 5 = x](https://tex.z-dn.net/?f=y%20%2B%205%20%3D%20x)
![y = x - 5](https://tex.z-dn.net/?f=y%20%3D%20x%20-%205)
Answer:
(a) 11.
(b) 5.
Step-by-step explanation:
(a)√124:
11*11 = 121 so an estimate is 11.
(b) ∛124
5*5*5 = 125
So an estimate is 5.
74
Because 3x3 = 9, multiply first then add, so 2+(9x8) = 74
Answer:
Apothem = 3.3 units
Step-by-step explanation:
A regular nonagon has an area of 102.4 and one side length measures 7 units long. Find the apothem. Round to the nearest tenth, if necessary.
The formula to find the area of a polygon when given Apothem and Side length =
A = 1/2 × a × p
Where p = no of sides of polygon × side length
In the above question,
We are given a polygon = nonagon = 9 sides
Side length = 7 units
p = 9 × 7 = 63 units
Area = 102.4 square units
Apothem = a = ?
We substitute into the formula
102.4 = 1/2 × a × 63
102.4 = 63a/2
Cross Multiply
102.4 × 2 = 63a
Divide both sides by 63
a = 102.4 × 2/63
a = 3.2507936508 units
Approximately to the nearest tenth = 3.3 units