In an attempt to be environmentally friendly, the city council decides that there must at least 18 trees on each block in thr city. A sample of 20 blocks was randomly surveyed, with these results (numbers of tree per blocks) 24, 17, 7 20 28 27 10 21 30 8 30 27 22 27 27 13 27 20 24 17 what is the sample mean number of trees per block

the answer is 62.8 cubic units

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

m∠5 + m∠3 = m∠1   is true.

m∠5 + m∠6 = 180 is true

m∠2 +m∠3 = m∠6   is true

m∠2 +m∠3 +m∠5 = 180   is true