Answer:
x ≈ -7.73 , - 4.27
Step-by-step explanation:
x² + 12x + 33 = 0 ( subtract 33 from both sides )
x² + 12x = - 33
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(6)x + 36 = - 33 + 36
(x + 6)² = 3 ← take square root of both sides )
x + 6 = ± ( subtract 6 from both sides )
x = - 6 ±
Then
x = - 6 - ≈ - 7.73 ( to the nearest hundredth )
x = - 6 + ≈ - 4.27 ( to the nearest hundredth )
Answer:
occording to my calculations its 13.00sqm
Step-by-step explanation:
Given:
ΔABC is an equilateral triangle.
AB = 7.5x, BC = 6x + 3 and CA = 10x - 5
To find:
The value of x.
Solution:
In equilateral triangle, all sides are equal.
AB = BC = CA
Take any two sides only:
AB = BC
Subtract 6x from both sides.
Divide by 1.5 on both sides.
The value of x is 2.
Answer:
I don’t know
Step-by-step explanation: