Answer:
Step-by-step explanation:
The given figure is an hexagonal pyramid. It has a hexagonal base and six triangular lateral faces. The formula for determining the surface area of the pyramid is expressed as
Surface area = 3ab + 3bs
Where
a represents the apotherm which is the distance from each side of the hexagon to the center.
b represents the base length
s represents the slant height of the hexagonal base.
From the information given,
a = 5.2 cm
b = 6 cm
s = 12.2 cm
Surface area = (3 × 5.2 × 6) + (3 × 6 × 12.2) = 93.6 + 219.6 = 313.2 cm²
Just substitute in the numbers:
7j+5-8k
=7(0.5) + 5 - 8(0.25)
=3.5 + 5 - 2
=6.5
Answer:
m = 9
Step-by-step explanation:
Using the rules of exponents
= 
× 
⇔ 
= 
Then
× 
= 243 ← express all values to base 3
× 
= 
× 
=
× =
=
Since bases on both sides are equal, both 3 , then equate exponents
- 3m - 4 = 5 ( add 4 to both sides )
- 3m = 9 ( divide both sides by - 3 )
m = - 3
