Answer:
20 ft²
Step-by-step explanation:
the area (A) of a triangle is calculated using the formula
A = 
bh ( b is the base and h the height )
here b = 5 and h = 8
A = × 5 × 8 = 20 ft²
Answer:
x = -11/9
Step-by-step explanation:
7(x+3)=-2(x-5)
Distribute
7x+21 = -2x+10
Add 2x to each side
7x+21 +2x = -2x+10+2x
9x +21 = 10
Subtract 21 from each side
9x +21-21 = 10-21
9x = -11
Divide each side by 9
9x/9 = -11/9
x = -11/9
Answer:
In a pulley, the ideal mechanical advantage is equal to the number of rope segments pulling up on the object. The more rope segments that are helping to do the lifting work, the less force that is needed for the job.
I got B for 3
Because
3x<-2x+15
5x<15
X<3
