Answer:
To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12. If we know the value of our variables, we can replace the variables with their values and then evaluate the expression.
Step-by-step explanation:
hope this helps you :)
I really hope this helps this is what my teacher said to do in the type of problem
Answer:
8 unit ^2 or 8cm^2
Step-by-step explanation:
area 1
1/2 ( 3 x 3 ) = 4.5 unit ^2
area 2 we split the triangle into half
= 1/2 ( 2 x 2) = 2 unit ^2
we know the other half is also 2 unit ^2 but we add then subtract
1/2 (1 x 1) = 0.5^2
To get
4.5 + 2+ 2 - ( 0.5) = 8 unit ^2
-9u + 3u = 9 + 9
-6u = 18
u = -18/6
u = -3
Thus, u is equal to -3
Use the co‐interior rule, corresponding angle rule, alternate angle rule and vertical opposite angle rule to solve the question above.
angle G5 = angle K1 reason : corresponding angles
angle J1 = angle H3 reason: vertical opposite angles
angle J2 = angle K4 reason: vertical opposite angles
angle G5 = angle K4 reason: co‐ interior angles
angle F6 = angle K4 reason: alternate angle