Answer:
24a-140 is the correct answer
Step-by-step explanation:
4a²+8a-140
4a×4a=16a+8a-140
24a-140
Answer:
131.1ft³ or 130ft³
Step-by-step explanation:
Volume of a cone= π(d/2)²(h/3)
=(3.14)(10/2)²(5/3)
=(3.14)(25)(1.67)
=131.1ft³
The answer will be amount of mass in a certain volume .
18.6?......if it is rounded to 18.6, the digit in the ones place would have to be 18.55 thru 18.59...the lowest being 18.55 and the highest being 18.59.
Reasoning : 18.59.....when rounded to the nearest tenths....u look at ur number in the tenths place, it is 5....now look at ur number to the right of it...if that number is 5 or above, u round the 5 to a 6...but if that number is 4 or below, the number would remain a 5.
Examples :
18.55 rounded to the nearest tenths = 18.6 (because the number to the right of 5 is 5, so we round up to 18.6
18.54 rounded to the nearest tenths = 18.5(because the number to the right of the 5 is 4....so we round it to 18.5