k and m must satisfy 8k = 1 mean k = ⅛
and 2km+⅝=0 mean m = -5/2
How do I do this ? I'm really confused .
1 answer:
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Answer:
226
Step-by-step explanation:
Area of rectangle:
x+6=17
x=11
11+6=17
11+3=14
17×14=238
Area of triangle:
Use phytagoras theorem to find the base of the triangle:
c²=a²+b²
5²=4²+b²
25=16+b²
b²=25-16
b²=9
b=√9
b=3 (only the half)
b=6 (the whole base)
3×4
12
Shades region:
238-12
=226
SA of a cylinder: 2
r² + 2rh
r = radius of base
h = height of cylinder
Plug in 3 for r and 5 for h in the formula.
23² + 2(3)(5)
Use a calculator to solve.
23² + 2(3)(5) = 150.8 ft²
r = radius of base
h = height of cylinder
Plug in 3 for r and 5 for h in the formula.
2
Use a calculator to solve.
2