To be a right angled triangle, it must follow the rule a² + b² = c² (where c is the longest side)
4.5² + 6² = 20.25 + 36 = 56.25
7² = 49
This is NOT a right angled triangle.
To make this into a right angled triangle, the longest side c should be longer.
c = √56.25 = 7.5 inches
The answer is 6.4
It is positive because the 11.4 is larger than the negatvie 5.
I hope this helps!
Answer:
A
Step-by-step explanation:
Given the 2 equations
6x + 3y = 9 → (1)
2x + 3y = 1 → (2)
Subtracting the 2 equations term by term eliminates the y- term
Subtract (2) from (1) term by term, that is
(6x - 2x) + (3y - 3y) = 9 - 1
4x = 8 ( divide both sides by 4 )
x = 2
Substitute x = 2 into either of the 2 equations and evaluate for y
Substituting into (2)
2(2) + 3y = 1
4 + 3y = 1 ( subtract 4 from both sides )
3y = - 3 ( divide both sides by 3 )
y = - 1
The solution is x = 2, y = - 1 → A
(c) 5p + 7 = 12 - 3p
8p = 5
p = 5/8 = 0.625
5. (a)
7p + 2 = 5p + 8
2p = 6
p = 3
(b) 7r + 2 = 5r - 20
2r = -22
r = -11
Answer:
true
Step-by-step explanation:
