Hey there!!
Equation given :
A = h ( a + b ) / 2
Multiply by 2 on both sides
2A = h ( a + b )
Divide by h on both sides
2A / h = a + b
Subtract by b on both sides
2A / h - ( b ) = a
Hence, the option ( a ) is the correct answer
Hope my answer helps!
the answer is B. 72 mm^2 because
9x4.5=40.5
then
7x4.5=31.5
then
40.5+31.5=72.0 mm^2
Answer:
8km/hr
Step-by-step explanation:
12/1.5 = 8
Answer:
1. 20 degrees celsius
2. 24 degrees celsius
3. decreased
4. 6am
5. 10am
Step-by-step explanation:
B- Divide the number by 4.5