I need help pleaseee

C

Step-by-step explanation:

3.5x4.1x0.5 = 7.175 7.175x7.2=51.66

51.66 In³

Step-by-step explanation:

This is a right angle triangular prism Hence ...

V=BA×H

BA= ½×4.1 in×3.5 In

BA= 7.175 In²

H= 7.2 In

V=7.175in² × 7.2In

V= 51.66 In³

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)

answer:

it is general formula that is used to write value to its excet position

a11 a12 a13

a21 a22 a23

it is the example of order 2 by 3 matrix in this

a11 means value occur in 1 st row 1st column

a12 means value occurs in 1st row 2nd column

a13 means value occur in 1st row and 3rd column

a21 means value occurs in 2nd row and 1st column

a22 means value occurs in 2nd row and in 2nd column

a23 means value occurs in 2nd row and in 3rd column