Work out the size of angle A.
А
11 cm
9 cm
38°
B.
С

There are two solutions!

a = 48.80524 degrees

or

a = 131.19476 degrees

Step-by-step explanation:

A = sin^-1 (sinB * 1/b) = sin^-1 * (sin(38degrees) * 11/9. =.    sin^-1 (0.75)

^ is used to signify to the __ power

I do not have the proper options for some mathematical functions on my device I’m answering from

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)

it would be 6xy and -16xy.