Answer:
57 units^2
Step-by-step explanation:
First find the area of the triangle on the left
ABC
It has a base AC which is 9 units and a height of 3 units
A = 1/2 bh = 1/2 ( 9) *3 = 27/2 = 13.5
Then find the area of the triangle on the right
DE
It has a base AC which is 6 units and a height of 1 units
A = 1/2 bh = 1/2 ( 6) *1 = 3
Then find the area of the triangle on the top
It has a base AC which is 3 units and a height of 3 units
A = 1/2 bh = 1/2 ( 3) *3 = 9/2 = 4.5
Then find the area of the rectangular region
A = lw = 6*6 = 36
Add them together
13.5+3+4.5+36 =57 units^2
Answer:
8n18
Step-by-step explanation:
Goodluck dude...sorry not sure
Example:
Look at the denominator of the fractions, and then see whether there is a common prime number associated with them.
In this example, since 5 and 9 (3*3) do not have any common prime numbers, you just multiply these numbers together and get 45.
There, we just found the LCD of fractions.
Answer:
8 years
Step-by-step explanation:
There are 50 lights present in the building and each light cost $50. Therefore the cost of changing all the bulbs is:
Cost = number of lights * cost per light = 50 lights * $50 = $2500
Changing the lights in the building save the company $305 per year in energy cost. Therefore, the number of years required for the new lights to pay for themselves is:
number of years = cost of changing bulbs / money saved per year
number of years = $2500 / $305 per year = 8.2
number of years = 8 years to the nearest year
<span>18x-16=-12x-4
+12x +12x
30x-16=-4
+16 +16
30x=12
30x/30=12/30
x=2/5</span>