<h2>-0.71 is it i think so i dk </h2>
<h2>
19 X 33 = 627, justified.</h2>
Step-by-step explanation:
We have,
19 × 33 = 627
Use the fact and justify.
L.H.S. = 19 × 33
= (20 - 1) (20 + 13)
Using the identity,
(x - a)(x + b) =
- (a - b)x - ab
Here, x = 20, a = 1 and b = 13
=
- (1 - 13)20 - 1(13)
= 400 - (- 12)20 - 13
= 400 + 240 - 13
= 640 - 13
= 627
= R.H.S., justified.
Thus, 19 X 33 = 627, justified.
Answer:
3.0pages
Step-by-step explanation:
If Tiffany type a page in an hour, then;;
1 page = 1 hour
To calculate the number of pages typed in 3 hours, we can express as;
x pages = 3 hours
Divide both expressions
1/x = 1/3
x* 1 = 1* 3
x = 3pages
She will type 3.0pages in 3 hours