I need this asap please and thank you

3 2/4

Step-by-step explanation:

it is positive because negative and negative equals a positive. You just have to convert the one half fraction to fourths so it becomes two fourths. multiply negative 3 and negative 1 which becomes just 3.Then multiply 1 fourth and two fourths and get 2/4

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)

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: