Answer:
4×^2-4×-3=0factor(2×+1)
(2×-3)=0 2×+1=0 2+-3=0 2×=-1
2×=3 ×=-1/2 ×=3/2
×=1/2, 3/2
Answer:
Formula of standard deviation = √Variance
Standard deviation = 1
Step-by-step explanation:
X-bar is the variance
Therefore, the answer would be
√X-bar
√1 = 1
!!
Answer:
y - 4 = 5(x + 2)
Step-by-step explanation:
The point-slope formula is
y - y1 = m(x - x1)
where m is the slope and (x1, y1) is a point of the line. Since you know the slope and a point, you only have to substitute in the equation:
y - 4 = 5(x - -2)
y - 4 = 5(x +2)
Opposite angles of an isosceles trapezoid add up to 180.
(That graphic is very blurry. I hope I can read it correctly.)
14x + 3x + 10 = 180
17x = 170
x = 10