Answer:
Step-by-step explanation:
2n - 6
a) n = 1 ; 2n - 6 = 2*1 - 6 = 2 - 6 = -4
n = 2 ; 2n - 6 = 2*2 - 6 = 4 - 6 = -2
n = 3 ; 2n - 6 = 2*3 - 6 = 6 - 6 = 0
b) n=10; 2n - 6 = 2*10 - 6 = 20 - 6 = 14
Answer:
y = 5x
Step-by-step explanation:
.......................
Answer:
Step-by-step explanation:
30. Given: rectangles QRST and RKST
Prove: ΔQSK is isosceles
An isosceles triangle is a triangle which has two sides and two angles to be equal.
Thus,
From rectangle QRST, the diagonals of rectangles are similar.
i.e RT ≅ QS (diagonal property)
Also, RT ≅ SK (opposite sides of rectangle RKST)
Thus,
RT ≅ QS ≅ SK
Therefore,
ΔQSK is an isosceles triangle.
31. Given: Rectangles QRST, RKST and JQST
Prove: JT ≅ KS
From rectangle QRST, the diagonals of rectangles are similar.
i.e RT ≅ QS (diagonal property)
But,
JT // QS and RT // KS
Thus,
JT ≅ QS (opposite sides of rectangle JQST)
also,
RT ≅ KS (opposite sides of rectangle RKST)
So that,
JT ≅ QS ≅ RT ≅ KS
Therefore,
JT ≅ KS
Answer:
59
Step-by-step explanation:
Answer:
y = 3x
Step-by-step explanation:
Direct proportion equation is
y = kx
6 = k*2
Divide each side by 2
6/2 = 2k/2
3 =k
The equation is y = 3x
