The area of a rectangular prism would be A=2(wl+hl+hw)
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Answer:
2x(x2-2x-15)
2x(x-5).(x+3)=0
x=0
x=5
x=-3
Step-by-step explanation:
I believe the answer to 1/7 times 20 would be 2.9 that is rounded to the nearest tenth but if your rounding to the nearest whole number it would be 3
As for 1/9 of 82 it would be 9.1 rounded to the nearest tenth and it would be 9 rounded to the nearest whole number.
Answer:
Option D.
Step-by-step explanation:
In this question figure of pyramid is attached below the question .
Surface area of the rectangular pyramid :
Area of the Base = Length × Width
= 10 × 2 = 20 cm²
Area of Lateral #1 = 
= 
= 31.5 cm²
Area of Lateral #2 = 
= 
= 8 cm²
Surface area of the pyramid = 20 + 2(31.5) + 2(8)
= 20 + 63 + 16
= 99 cm²
Surface area of the pyramid is 99 cm²
Answer:4600
Step-by-step explanation:
15% of 4000
15/100 x 4000
(15x4000) ➗ 100
60000 ➗ 100=600
4000+15% of 4000
4000+600=4600