Answer:
Step-by-step explanation:
Let's find the volume of the room in ft³ and that will give
14×22×9=2772ft³
There are deductions. Hence we subtract them from this value
3×5=15, but there are two, hence 15×2=30ft²
And 4×7=28ft²
Hence 2772-(30+28)=2714
Dividing this value by 320 gives
8.4(to 2s.f)
The answer for is a) x=12
The correct answer is C and D .
Surface area of a prism=2(long x wide)+2(long x high )+2(wide x high)
Data:
long=5 m
wide=2 m
high=2 m
Surface area of this prism=2(5 m * 2 m)+2(5 m*2 m)+2(2 m*2m)
=2(10 m ²)+2(10 m²)+2(4 m²)
=20 m²+20 m²+8 m²
=48 m²
Answer: C 48 m²
