Im pretty sure it’s C. 9 times longer
Put the value of x = -1 to the equation of a function f(x):

Answer: Light waves
Step-by-step explanation:
Used in the usual sense, radiant energy is just light. When you turn on your electric stove unit, it heats up and emits radio waves, infrared waves, and visible light waves. All of these waves are just light with different frequencies.
Answer:
10.294935
Step-by-step explanation:
i typed numbers
Explain: it’s equals to 20