Answer:
x= 4, y=3
Step-by-step explanation:
2x + 3y = 17
3x - 2y = 6
----------
<u>If we double the first and triple the second equation, and add up, we can get rid of y:</u>
- 4x+6y= 34
- +
- 9x - 6y= 18
- -----------------
- 13x= 52
- x= 4
<u>Then it is easy to find the value of y:</u>
<u>Answer is</u>: x= 4, y=3
Given:
The lengths of the sides of a triangle are 6, 11, 16.
To find:
Whether the given triangles is a right angle triangle or not.
Solution:
Pythagoras theorem:
A triangle is a right angle triangle if the sum of squares of two smaller sides is equal to the square of the largest sides.
In the given triangle the length of the largest side is 16.
Square of the largest sides is:
Sum of the squares of the two smaller sides is:
Since 
, therefore the given triangle is not a right angle triangle.
Try and make x the subject of the formula
x/4 + 12 = -2
x/4 = -2-12 (opposite operations)
x/4 = -14
x = -14 *4 (multiply)
x= -56
Answer:
P-4,7
Q-1,4
R-4,4
S-1,1
Step-by-step explanation:
4,4- 1,4 theres a 3 unit distance. just subtract 3 from y and you'll get the answer
Answer:
29. 2L 30. 6.45 31. 0.75 cm
Step-by-step explanation:
29. 2 L
30. 32.25/5=6.45
31. 6/8=0.75
