Use the commutative Property of Addition to add the last two terms first.
9 + (-17) + (-9) = -17
Hope this helps!! Good luck. :)
Answer:
10.92 m
Step-by-step explanation:
To solve for the height, we first find the area of the triangle. Since the area of a triangle is 1/2 of the base times the height, we get the area to be 109.2. Dividing it by 20 and then multiplying by 2, we get 10.92 as the height.
Answer:
do you still need help or have you found the answer?
Start with parenthesis first.
so a+a+2a+48
Then add all like terms.
4a=48
Then solve for a by dividing 4 from 48.
a=12
