All categories

3 years ago

When a dynamic array with a class for a base type is declared, which constructor is called?

1 answer:

5 0

The default constructor is called for each element of the array. So if you declare an array with 100 elements (object instantiations), the constructor is executed 100 times!

You might be interested in

Sketch f(x) = 5x2 - 20 labelling any intercepts.

Norma-Jean [14]

Answer:

The graph of the function is attached below.

The x-intercepts will be: (2, 0), (-2, 0)

The y-intercept will be: (-20, 0)

Explanation:

Given the function

$f\left(x\right)\:=\:5x^2-\:20$

As we know that the x-intercept(s) can be obtained by setting the value y=0

$y=\:5x^2-\:20$

switching sides

$5x^2-20=0$

Add 20 to both sides

$5x^2-20+20=0+20$

$5x^2=20$

Dividing both sides by 5

$\frac{5x^2}{5}=\frac{20}{5}$

$x^2=4$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$x=\sqrt{4},\:x=-\sqrt{4}$

$x=2,\:x=-2$

so the x-intercepts will be: (2, 0), (-2, 0)

we also know that the y-intercept(s) can obtained by setting the value x=0

$y=\:5(0)^2-\:20$

$y=0-20$

$y=-20$

so the y-intercept will be: (-20, 0)

From the attached figure, all the intercepts are labeled.

8 0

3 years ago

T<br> F<br> 5.<br> You can save presentations in PDF and XPS formats.

S_A_V [24]

True, presentations can be saved as PDF’s it will come out as separate pages though

7 0

3 years ago

After selecting multiple calendars, how do you view them in one single calendar? Open the Backstage view and then the Calendar o

blsea [12.9K]

Answer:

its D. in the calendar view, click the view tab, and click they overlay button.

Explanation:

i just got it right on edge 2020

6 0

3 years ago

Read 2 more answers

Help i need 76 more points to rank up can some one nice get me those? please please please

lutik1710 [3]

????????????????????????

6 0

3 years ago

Read 2 more answers

Digital and analog audio recordings have pros and cons. Do you think the pros of digital recordings outweigh the cons and theref

Debora [2.8K]

Digital vs Analog Audio is completely personal preference and there is no clear winner on which is better.

But there are some pros and cons about both, Analog sometimes distorts when playing and can be easily scratched and ruins the grooves. Analog is believed to be the true representation of the sound when it was recorded. Digital is not the actual recording of the sound, it's actually a combination of binary code. It is also sometimes mixed or remastered in Digital and sounds a bit different to make it sound better. It also depends on the system you are listening it from. You could have a horrible Digital system its playing through and an amazing Analog system playing, of course the Analog system will sound better in that case. Some believe that Digital is on par to overtake Analog in the "true picture of sound" category but some also say Analog will forever be the best at playing sound and Digital will always be the alternative.

But, in the end it's all personal preference and the pros and cons don't overweigh to make one better than the other.

6 0

3 years ago