Help me please i need a explanation to the question

True, false, true, false.

Step-by-step explanation:

1. Add 2.7 and 4.2 to get 6.9.

2. The least possible difference you can get is 10.2. (4.2+|-6|)

3. 2.7x4.2 (the greatest positive numbers) get you 11.34.

4. You divide 4.2 and -2/3, but it's only -0.7.

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

perimeter of the base times height

step-by-step explanation: