X=4
Explanation
First subtract 4x^2 + 6x from both sides of the equation
X^2 - 8x + 16 = 0
Then let’s factorice the equation using the middle-term break:
x^2 - 4x - 4x + 16 = 0
x (x - 4) - 4 (x - 4) = 0
(x - 4) (x - 4) = 0
(x - 4) ^2 = 0
x = 0
Therefore the solution to the equation is x = 4
Addition expression: -6 + 14 = 8
-6 because it’s below street level.
Answer:
130°
Step-by-step explanation:
20° + 30° =50°
a triangles full angle is 180°
180° - 50° = 130°
Solution :
Given :





So we want to test :
vs 
a). For 98% confidence interval :



= (1.956, 10.045)
Answer:
19/25
Step-by-step explanation: