Answer: x ≥ - 3
5x - 1 ≥ -4(x + 7)
⇔ 5x - 1 ≥ - 4x -28
⇔ 5x + 4x ≥ - 28 + 1
⇔ 9x ≥ - 27
⇔ x ≥ - 3
Step-by-step explanation:
Answer:
I can give you alittle head start. I hope it kinda helps.
Step-by-step explanation:
Dentist A: 50 + 20x
Dentist B: 70 + 5x
It cost 20 more dollars for the visit and 15 dollars less for each cavaty at Dentist B.
Volume of a sphere is calculated with V=(4/3)πr^3
We have the value of r, which is 6.
Plug in the value, and solve.
V=(4/3)π(6^3)
V=(4/3)π(216)
V=π(288)
V=904.7786842
So, C. is your answer.
Ah, ok
RST
so RS+ST=RT
6x+12=72
minus 12 both sides
6x=60
divide both sides by 6
x=10
x=10
