Step-by-step explanation:
first of all you times every number with two 2(n-7) then collect like terms then divide
Question 7:
Diameter = 6.2 cm so Radius = 3.1 cm
A=πr² = 3.14 × 3.1² = 30.1754 cm² = 30.18 cm²
Question 8:
Circumference = 2πr
16π = 2πr
therefore 16 = 2r so r = 8cm
Answer:
about $7.43 per hour
Step-by-step explanation:
52/7 = 7.43
Rounded to the nearest hundredth: Gila Monster: 600; Chuckwalla: 400. This should help you.