The next one is -16
subtract 5 every time
Replace each letter for the value it's worth, so:
= 10 * -4 * 5
= -200
Statements Reasons
1. Write all the given as you did 1. Given
2. <DBA and <DBC are right angles 2. Def of perpendicular lines
3. m<DBA = 90 3. Def of right angle
m<DBC = 90
4. m<DBA = m<DBC 4. Substitution
5. m<DBA = m<1 + m<3 5. Angle addition postulate
m<DBC = m<2 + m<4
6. m<1 + m<3 = m<2 + m<4 6. Substitution
7. m<3 = m<4 7. Subtraction prop of equality
If 2/5 of the tree is above the building, the other 3/5 must be down next to the building.
3/5(tree) = 9m
Multiply each side by 5/3 :
tree = (5/3) (9) = <u>15 meters</u>
He switched some of the numbers around
he can fix it by switching them back to 5,650,000
