
We will use u-substitution: u=2x +1 , du = 2dx,

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Answer:


Step-by-step explanation:
You take the negative out of the exponent and move it down to the denominator.
Then, you find the answer to the denominator.
Answer:
21
Step-by-step explanation:
you stoopid
Answer:
11
Step-by-step explanation:
Use the same denominator then divide.
Answer:
AB = 2.25
Step-by-step explanation:
Perimeter of square = 4L
24 = 4L
L = 24/4
L = 6cm
Hence the side length of square is 6cm
Area of square = L^2
Area of square = 6^2
Area of square = 36 sq. cm
Area of square = 1/2 * Area of the trapezium
36 = 1/2 * (AB+3AB)*8
72 = (AB+3AB)*8
72 = 4AB * 8
72 = 32AB
AB = 72/32
AB = 2.25