<u>B. Microphone</u> helps Carol to use the speech recognition software.
<u>Explanation</u>:
A microphone is a hardware device which converts the sound waves in the air into electronic signals. The electrical signals are transferred to a recording medium. Four main types of microphones are as follows:
i) Cardioid
ii) Super cardioid
iii) Omni
iv) Figure 8
Handheld microphone can be used better with the home theater or a karaoke machine. The speech recognition software can be used with the help of microphone. Cabling problem can be avoided with the use of microphone, thus cable trip hazard can also be avoided.
Answer:
The algorithm for switching off the electric water heater automatically when the temperature rises to 70 o Celsius is given below.
Explanation:
Let use python code for this question.
we will use if statement to check the condition if the temperature is greater than 70.
When the temperature is 70, then the algorithm will send signal to hardware to turn yourself off.
if(temperature==70):
print("send_turn_off_signal")

int y = (int) y;
int x = y;
<h2><u>Hope</u><u> </u><u>it</u><u> </u><u>helps</u><u>.</u><u>.</u><u>♪</u></h2>
Answer:
Explanation:
The following code is written in Python and is a recursive function as requested that uses the current value of p (which is count in this instance) and raises 2 to the power of p. If the result is greater than or equal to the value of n then it returns the value of p (count) otherwise it raises it by 1 and calls the function again.
def next_pow2(n, count = 0):
if (2**count) < n:
count += 1
return next_pow2(n, count)
else:
return count