Hi there! I can help you with this!
a. Okay. So for questions like these, we have to combine like terms and solve this answer out. The problem would look like this: 10x - 6 = 24 + 9x. First, subtract 9x from both sides to get x - 6 = 24. Now, add 6 to both sides and you get x = 30. There is one solution and the equation is neither.
b. Repeat the same thing in this equation. 25 - 4x = 25 - 4x. First, add 4x to both sides to get 25 = 25. There are in infinite number of solutions and the equation is an identity.
c. 4x + 8 = 4x - 13. okay, subtract 4x from both sides, and you get 8 = 13, which is not a true statement. This problem has no solutions and is a contradiction.
Basically, to solve these problems, you have to add or subtract the "x" from the right side first to get the whole number by itself, and then if needed, add or subtract the whole number from the left side. Then, divide each side by the number the "x" is beside to isolate the "x". If the number is a positive, you subtract. If a number is negative, you add. If the number beside the "x" is negative and you have to divide, just divide by the negative. An identity equation has an infinite number of solutions, a contradiction equation has no solutions, and neither just simply means it's not an identity nor contradiction.
Answer:
B
Hope that helps. :)
Answer:
area= 264.5 unit square
Step-by-step explanation:
let the width of the rectangle be x units then the length would be 2x units
perimeter = 2(l+b)= 2(2x+x)=2(3x)=6x
69=6x
x=69/6=11.5units
width is 11.5 units and length is 23 units
area= lxb= 11.5* 23= 264.5 units square
Step-by-step explanation:
By method of elimination;
- Opposite angles are congruent
Congruent means Equal
This is correct.
- Diagonals are congruent
This is incorrect.
- Diagonals bisect each angle.
This is correct.
- Diagonals are perpendicular.
This is correct.
- Opposite sides are parallel.
This is correct.