Answer:
2A/h - b = c
Step-by-step explanation:
A = 1/2(b + c)h
Multiply each side by 2
2A = (b + c)h
Divide each side by h
2A/h = (b + c)h/h
2A/h = (b + c)
Subtract b from each side
2A/h -b = (b-b + c)
2A/h - b = c
Answer:bujn
Step-by-step explanation:
Answer: -3
Step-by-step explanation: substitute y and x into the formula y=k/x, and that is 4=k/-12. Then you multiply the -12 over, you get that k=-48. Then you substitute that into the same equation getting y=-48/x, but then you see that y should be 16, so then it would be 16=-48/x. Then, you flip the two fractions to make it more simpler looking like 1/16=x/-48x. Then you multiply the -48 over, getting x=-3.
The tv 21 inches wide c^2 - a^2 so 29 squared subtract 20 squared which equals 21
12 ft * 10 ft = 120 sq ft
½ * 6 ft * 7 ft = 21 sq ft
120 sq ft - 21 sq ft = 99 sq ft (it is area of the composite shape)