In triangle abc, ma=35, mb=40, and a=9. which equation should you solve for b?
a. sin35/b=sin40/9
b. sin35/9=sin40/b
c. cos35/9=cos40/b
d. b sqaure=9 square-2(9)bcos40

  B.  sin35/9=sin40/b

Step-by-step explanation:

The law of sines tells you ...

  sin(A)/a = sin(B)/b

Filling in the given values, you get ...

  sin(35°)/9 = sin(40°)/b

B.

Step-by-step explanation:

We are given that in a triangle ABC.

a=9

We have to find an equation  which solve for b

We know that a sine law

Using above formula of sine law

Substituting all given values in the above formula of sine law

Then we get

By cross multiply then we get

Using division property of equality

Using division property of equality

Hence, option B is true option for solving b.

B.

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.