Answer:
the first line
Step-by-step explanation:
because the second line should be -3x=30
a)
Add the score and then square the sum.
By using the summation notation we can write the above statement is (Σx)²
b)
Square each score and then add the squared values.
By using the summation notation we can write the above statement is Σx²
Subtract 2 point from each score and then add the resulting values.
By using the summation notation we can write the above statement is Σ(x-2)
Subtract 1 point from each score and square the resulting values. Then add the squared values.
By using the summation notation we can write the above statement is Σ(x-1)²
it would be 81, all interior angles should equal 360 and that goes for any closed shape.
Find the area of the rectangle (bh) and then the area of half of the circle (pi times r (squared)) then divide it by two and subtract the half circle area from the rectangle area
