Answer:
0
Step-by-step explanation:
-5 + 18 + (-12) + (-1)
-5+18-12-1
13-13
0
Answer: 45°
Step-by-step explanation:
Diameter= 16m
Radius= 16/2 = 8m
The area of the circle= πr^2
= π8^2
= 64π square metres.
An area of 8π square metres is also 1/8 of the total area, therefore the arc must be 1/8 of the circumference.
The circumference = 2πr = 16π,
This gives us an arc length of 2π metres.
But since we are looking for the the angle.
In degrees: 360/8 = 45°
7393=73-273 is he expression shown below
Answer:
168
Step-by-step explanation:
The first equation given is 
Where a is number of adult tickets and b is number of student tickets
It is also given that 82 students attended, so we can put "82" in place of "b" and then solve the equation for a:
Hence, 168 adults attended
Given:
Hexagonal Prism dimensions:
Altitude = 6 ft
Regular base;
side = 9 ft
apothem = 7.8 ft
The formula for the lateral surface area of a prism is
LA = P * h
where
LA is the lateral surface area
P is the perimeter of the base
h is the height of the prism
LA = (9 ft * 6 sides) * 6 ft
LA = 324 ft^2
The formula for total surface area is
TA = (P * h) + 2(Ab)
where
TA is the total surface area
Ab = Area of the base
Ab = a * P / 2
Ab = 7.8 ft * (9ft * 6) / 2
Ab = 210.6 ft^2
TA = 324 + 2(210.6)
TA = 745.2 ft^2
<span />
