<em>If this guy doesn't use the letter m, then the first and second characters of the password could be any of the 25 remaining letters. So, the number of possible combinations of 2 letters is 25 times 25, or 625.
If he doesn't use the digit 0, how many digits are left to choose from?
The first 2 characters of the password will be letters; after that there come four digits. How many different combinations of 4 digits are there if 0 is not used?
To obtain the final result, mult. together that 625 and the number of possible combinations of digits just found above.</em>
If one number is 8/15, you take the difference which 7/15.
Answer:
300
Step-by-step explanation:
1W+4W=375
5W=375
W=75
75*4
<h3><u>Answer </u><u>1</u><u> </u><u>:</u><u>-</u></h3>
If I were one of the students in Barangay then I shall prepare the design of kite by using the known properties of kites in mathematics.
For example, Symmetrical about its main diagonals, Adjacent side equals, Having two pairs of congruent triangle etc.
<h3><u>Answer </u><u>2</u><u> </u><u>:</u><u>-</u><u> </u></h3>
Design of kite assign to me
<u>Step </u><u>1</u><u> </u><u>:</u><u>-</u>
- I shall take one paper and cut it like that the adjacent sides of paper are equal
<u>Reason </u><u>:</u><u>-</u>
- <u>Adjacent </u><u>sides </u><u>of </u><u>kite </u><u>are </u><u>equal </u>
<u>Step </u><u>2</u><u> </u><u>:</u><u>-</u>
- I shall take two thin sticks and paste it on the paper but sticks should intersect each other at 90°
<u>Reason</u><u> </u><u>:</u><u>-</u>
- <u>Kite</u><u> </u><u>has </u><u>2</u><u> </u><u>diagonals </u><u>which </u><u>intersect </u><u>each </u><u>other </u><u>at </u><u>9</u><u>0</u><u>°</u><u> </u><u>.</u>
<u>Step </u><u>3</u><u> </u><u>:</u><u>-</u>
- <u>Make </u><u>a </u><u>hole </u><u>in </u><u>the </u><u>one </u><u>of </u><u>the </u><u>end </u><u>point </u><u>of </u><u>a </u><u>longest </u><u>sides</u><u>. </u>
<u>Observation </u><u>:</u><u>-</u>
- <u>The </u><u>kite </u><u>should </u><u>be </u><u>looked </u><u>like </u><u>that </u><u>it </u><u>having </u><u>two </u><u>pairs </u><u>of </u><u>congruent </u><u>triangle</u><u> </u><u>with </u><u>common </u><u>base. </u>
<h3><u>Answer </u><u>3</u><u> </u><u>:</u><u>-</u></h3>
- The adjacent sides of the kites are equal that is 4cm and 6cm
- The diagonals of the kite bisect each other at 90°
- As kite is symmetrical from main diagonals , so it has two opposite and equal Angles that is 127°
- The opposite angles at the end points of kite are congruent that is Angle D and Angle C
- AC is the bisector of AB and AB is the bisector of AC .
[ Note :- Kindly refer the above attachment ]
<h3><u>Answer </u><u>4</u><u> </u><u>:</u><u>-</u></h3>
All mathematical concepts used in making kite are as follows :-
- <u>Adjacent </u><u>sides </u><u>are </u><u>equal </u>
- <u>Diagonal </u><u>intersect </u><u>each </u><u>other </u><u>at </u><u>9</u><u>0</u><u>°</u>
- <u>Having </u><u>two </u><u>pairs </u><u>of </u><u>congruent </u><u>triangle </u><u>with </u><u>common </u><u>base </u>
- <u>Symmetrical </u><u>about</u><u> </u><u>its </u><u>main </u><u>diagonal</u>
- <u>Opposite </u><u>angles </u><u>at </u><u>the </u><u>end </u><u>points </u><u>are </u><u>equal</u>
1.3x-2.39=5.76x+4.74
+2.39 +2.39
_________________
1.3x=5.76x+7.13
-5.76x -5.76x
______________
-4.46x=7.13
/-4.46 /-4.46
__________
x=-1.6
D