Answer:
m∠7 = 140º
Step-by-step explanation:
m∠4 = m∠2 + m∠3
120 = 80 + m∠3
m∠3 = 40
m∠3 + m∠7 = 180
40 + m∠7 = 180
m∠7 = 140º
Step-by-step explanation:
-3 10
-1 4
10= -3m+b
4= -m+b
6= -2m
m= -3
10= 9+b
b= 1
y= mx+b
y= -3x+ 1
V (cube)=9³=729 cm³
V (cone)=1/3*π*R²*H= 1/3*π*3²*9=84.8 cm³
V (metal)= 729-84.8=644.2 cm³
Answer:There is no answer
Step-by-step explanation: Get Good