Answer:
10
Step-by-step explanation:
The radius is the magnitude of the complex number that is the difference between any point on the circle and the center point. A suitable calculator can tell you that magnitude:
║(8+7i) - (2-i)║ = √((8-2)² +(7-(-1))²) = √(36+64) = √100 = 10
15 days because u set up a proportion : 4/3 = x/20 cross multiply then solve like an rquqtion
Answer:
120 sq feet
Step-by-step explanation:
1. 8 x 10 = 80
2. 8 x 5 = 40
3. 80 + 40 = 120 ft2 (sq feet)
If you would like to know the mass of the kettle when it is empty, you can calculate this using the following steps:
2900 grams - 2050 grams = 850 grams (half of water)
2050 grams - 850 grams = 1200 grams (no water)
The correct result would be 1200 grams.