Solve the formula dor the area of a triangle a=1/2bh solve for b

answer: 2a / h

step-by-step explanation: since the area is given as :

a = 1/2 bh , solving for b means we are making b the subject of the formula.

the first thing is to multiply through by 2 , that is

2a = bh , then divide through by h

2a/h = bh/h

2a /h = b

therefore , b = 2a/ h

answer:

step-by-step explanation: djdif

system of linear equation

step-by-step explanation:

as given in the data

a= 20 , b= -12

let us suppose that it is a straight line equation

now we know the formula for the system of linear equation

b= ma + c )

here m is slope of a straight line which is equal to formula

m=   (ii)

and here c is a constant

now putting the value of a and b in equation (ii)

m=

m=

putting the value of a,b and m in equation (i) gives us

-12 = + c

-12=-12 + c

adding 12 to both sides

-12 +12 = -12 +12 +c

0 =c

or c=0

as the value of the constant is zero which gives us that it is a linear equation and this order pair satisfies the system of linear equations.