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.

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.