To create a DateTime object that represents a due date that's 90 days after the current date, you use the following code:

a. $days = new DateInterval('P90D');
$due_date = date();

$due_date = $due_date->add($days);

b. $days = new DateInterval('P90D');
$due_date = new DateTime();

$due_date = $due_date->add($days);

c. $days = new DateInterval('P90D');
$due_date = date();

$due_date = $due_date + $days;

d. $days = new DateInterval('P90D');
$due_date = new DateTime();

$due_date = $due_date + $days;
b. $days = new DateInterval('P90D');
$due_date = new DateTime();

$current_date = new DateTime();

$due_days_diff = $current_date->diff($due_date);< br />
if ($current_date > $due_date) {

$overdue_message = $due_days_diff->format(

'%y years, %m months, and %d days overdue.');

}
14. (Refer to code example 10-1) If $due_date contains a DateTime object, $due_date_diff will contain

a. a TimeStamp object
b. a DateTime object
c. a DateInterval object
d. a TimeInterval object

Animations and transitions are added from the

Now you’re on your own. include a short summary of this section with plots in your lab report. write a matlab script file to do steps (a) through (d) below. include a listing of the script file with your report. 1 the soundsc(xx,fs) function requires two arguments: the first one (xx) contains the vector of data to be played, the second argument (fs) is the sampling rate for playing the samples. in addition, soundsc(xx,fs) does automatic scaling and then calls sound(xx,fs) to actually play the signal. mcclellan, schafer, and yoder, dsp first, 2e, isbn 0-13-065562-7. prentice hall, upper saddle river, nj 07458. c 2015 pearson education, inc. 4 mcclellan, schafer and yoder, signal processing first. prentice hall, upper saddle river, new jersey, 2003. c 2003 prentice hall. (a) generate a time vector (tt) to cover a range of t that will exhibit approximately two cycles of the 4000 hz sinusoids defined in the next part, part (b). use a definition for tt similar to part 2.2(d). if we use t to denote the period of the sinusoids, define the starting time of the vector tt to be equal to t , and the ending time as ct . then the two cycles will include t d 0. finally, make sure that you have at least 25 samples per period of the sinusoidal wave. in other words, when you use the colon operator to define the time vector, make the increment small enough to generate 25 samples per period. (b) generate two 4000 hz sinusoids with arbitrary amplitude and time-shift. x1.t / d a1 cos.2

Write a program that will compute the volume of ice cream served in a cone. as you can see in the diagram below, the ice cream is served as a hemisphere of frozen deliciousness on top of a cone, which is also packed with frozen deliciousness. thus, the total volume of ice cream sold is the volume of the hemisphere plus the volume of the cone. the example shows an ice cream cone in which the hemisphere and cone have a radius of 10 inches and the cone has a height of 15 inches. your program must instead prompt for these two values, which are taken from the keyboard as integers: • the hemisphere/cone radius in inches, and