Make a guess for the value of the variables.
Write two equations using the assigned variables.
Make another guess, based on the results of the first guess. Solve the pair of equations.
Answer:
Options A, C and E are correct.
Step-by-step explanation:
a. Assign two variables for the unknowns.- Firstly we read the problem and then assign values like (x and y) to the unknown entities.
c. Write two equations using the assigned variables. - After the first step, we get few equations to be solved. These equations are based on the assigned values from step 1.
e. Solve the pair of equations. - Finally we solve these equations to get the variable values.
Answer:
Step-by-step explanation:
Assign two variables for the unknowns.
Write two equations using the assigned variables.
Solve the pair of equations.
(B) this relation is not a function
Answer:
(b) this relation is not a function because this relation is a one to many ,functions are only many to one and one to one
Solve with variables
Answer:
4
Step-by-step explanation:
Step 1:
6x + 10 + 2x = 42 Equation
Step 2:
8x + 10 = 42 Combine Like Terms
Step 3:
8x = 32 Subtract 10 on both sides
Step 4:
x = 32 ÷ 8 Divide
Answer:
x = 4
Hope This Helps :)
The area of this triangle with three vertices (x₁, y₁) , (x₂, y₂) and (x₃, y₃) is,
A = 1/2 [[(x₁ (y₂ - y₃) + x₂ (y₃ - y₁) + x₃ (y₁ - y₂))]
We have to give that,
The three vertices of the triangle are,
(x₁, y₁) , (x₂, y₂) and (x₃, y₃)
Since a triangle is a three-sided polygon, which has three vertices and three angles it has the sum of 180 degrees.
Hence,
The area of this triangle with three vertices (x₁, y₁) , (x₂, y₂) and (x₃, y₃) is,
A = 1/2 [[(x₁ (y₂ - y₃) + x₂ (y₃ - y₁) + x₃ (y₁ - y₂))]
So, the Formula is,
A = 1/2 [[(x₁ (y₂ - y₃) + x₂ (y₃ - y₁) + x₃ (y₁ - y₂))]
Learn more about the triangle visit;
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