Calculate the perimeter

72

Step-by-step explanation:

You use Pythagorean Theorem to to find the missing side which in this case is 6 and since and then from there you just add

240

Step-by-step explanation:

(10 x 8) / 2 = 40

+ 20 x 8 = 160 + 40 = 200 + 40 = 240

                                    second triangle

answer: d. $20

step-by-step explanation:

just took the test

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)