Answer:
(2x + 11)(2x - 11)
Step-by-step explanation:
4x² - 121
rewrite the expression in the form of (a)² - (b)²:
(2x)² - (11)²
difference of squares a²-b²=(a+b)(a-b):
(2x + 11)(2x - 11)
Answer:25°
Step-by-step explanation:
One angle =130°
An isosceles triangle has two equal angles
Sum of angles in a triangle is 180°
Let the other two angles in The isosceles triangle be y°
130+y+y=180
Collect like terms
y+y=180-130
2y=50
Divide both sides by 2
2y/2=50/2
y=25
There other two angles in The isosceles triangle are 25° each
Answer:
(x, y) = (2, 2)
Step-by-step explanation:
The problem statement tells us ...
GK : GJ = 3/5 . . . . the given ratio
5(GK) = 3(GJ) . . . . multiply by 5(GJ)
5(K-G) = 3(J-G) . . . replace segment lengths with endpoint differences
5K -5G = 3J -3G . . . eliminate parentheses
5K = 3J +2G . . . . . add 5G
K = (3J +2G)/5 . . . . divide by 5
K = (3(6, 0) +2(-4, 5))/5 = (18 -8, 0+10)/5 . . . . substitute point coordinates
K = (2, 2)
The values of x and y are both 2.