Answer:
Given that the time to read data off a 7200 rpm disk drive will be roughly 75% of 5400 rpm disk, at 30% idle time of 7200 rpm disk will the power consumption be equal, on average for the two disk
Explanation:
Let the 7200-disk busy time = x ( we need to calculate it)
As given in the question the in the given time to read data off a 7200 rpm disk drive will be roughly 75% of 5400 rpm disk. This mean that we equalize the equations of both disk power
7200-disk power = 5400-disk power
here we apply the formula to calculate the 7200 rpm disk busy time
4.0 * (1-x) + 7.9 * x = 2.9 * (1-x/0.75) + 7.0 * x/0.75
4.0 + 3.9 x = 2.9 – 3.87 x + 9.33 x
1.1 = 5.47 x – 3.9 x
we calculate the value for x
Hence x = 0.70
Applying formula to calculate the idle time.
Idle time = 1.0 – 0.70 = 0.30
Answer:
It gets to the recipient faster
Explanation:
Answer:
#include <iostream>
bool isPrime(int number) {
if (number <= 1) {
return false;
}
for (int i = 2; i * i <= number; i++) {
if (number % i == 0) {
return false;
}
}
return true;
}
int main() {
int number;
std::cout << "Enter a positive whole number in the range 2 through 1000: ";
std::cin >> number;
if (isPrime(number)) {
std::cout << number << " is a prime number.\n";
} else {
std::cout << number << " is not a prime number.\n";
}
return 0;
}
Explanation:
Answer:
The output of the following code is "Hello, we are open! Sincerely, the grocery store ".
Explanation:
In the given code firstly we declare the variable that is numApples and numOranges. In this variable we assign value and the datatype of the variable is var. The var datatype can hold any type of data. Then we use the conditional statement. In the conditional statement, we use the OR logical operator. In the if block we check the condition that is if numApples variable value is less then 20 OR numOranges variable value is equal to numApples then it will print "Hello, we are open!". In the else block it will print "Sorry, we are closed!". In the last, we print "Sincerely, the grocery store".So in this question, if block is executed and the additional message is printed.