Answer:
there is no x
Step-by-step explanation:
Answer:
240, 1800, 2040
Step-by-step explanation:
First find the surface area of the shape - base = 3 x 15 x 2 + 40 x 15 + 40 x 3 x 2 = 930 m ^2
Now find the area of base = 40 x 15 = 600
Now, the cost of painting = 10 pounds for 25 m^2. SO here cost = 600 / 25 x 10 = 24 x 10 = 240 pounds.
Now cost of tiles = 600 x 3 = 1800
Total cost = 1800 +240 = 2040
Sqrt((x-3)^2) = sqrt(-12)
x-3=<span>±</span>sqrt(-12)
<span>18.49 trillion ft² is the answer</span>
If you need an estimate for #5, then you can round each value to the nearest whole number to have...
- 21.6 turn into 21
- 20.9 turn into 21
- 19.4 turn into 19
- 18.5 turn into 19
Add up those values: 21+21+19+19 = 80
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Another estimate you could do is to round everything to 20, since we're close to this value. Having four copies of 20 added leads to 20+20+20+20 = 80
So they rode a total estimated amount of 80 miles
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The actual total is: 21.6+20.9+19.4+18.5 = 80.4 miles, which isn't too far off from 80.