Answer:
4+7x
Step-by-step explanation:
15) 4m^2
17)9n^6
198a^2 (^ = power of)
Wrong,
You added when you were supposed to divide.
24/30 = 0.8
Answer:
8 inch³
Step-by-step explanation:
Side should be 2 inch
Volume = side³ = 2³ = 8 inch³
15) factor out cos: cos(x)(sin(x)+1)=0
Now this is true when either cos(x)=0 (x=pi/2 and 3pi/2)
Or when sin(x)=-1 (x=3pi/2)
So it's solutions are pi/2 and 3pi/2
