Answer:
From what I know, that is correct
Coefficient = 7 and 1
7 is the coefficient of a
1 is the coefficient of b
Dan...... hope this helps
Answer:
828
Step-by-step explanation:
Missing leg of triangle:
√15²-12²= √225-144=√81=9
Triangle faces= 2*1/2*12*9= 108
Base= 20*9= 180
Front face= 20*15= 300
Back face= 20*12= 240
Total= 108+180+300+240= 828
Second choice
