Speed = wavelength * frequency
10 * 2 = 20
The speed is 20 m/s
Answer: 7/12!
Step-by-step explanation: 7/9 times 21/28 = 147/252. But you have to reduce it (simplify it) by dividing both the numerator and denominator by the greatest common factor and you get 7/12! Hope this helped.
Answer:
Arc AB = 80°
Arc AD= 100°
Step-by-step explanation:
Arc AB
Since AC is the diameter, it would be 180°, and since arc BC is given (100°), arc AB would be 80°
Arc AD
Since BD is a diameter, it would also be 180°. Arc ED is given and previously you found arc AB. So subtract 50 and 80 from 180 and you'll get 50° for arc AE. Add that with arc ED and you'll get 100°
A) 17 ft 6 in
b) 3 lb 7 ounces