Cancel out the denominators.
(x+5)² + 18 = -30
(x+5)² = -30 - 18
(x+5)² = -48
The equation is impossible, we have a negative number.
There isn't a number that squared gives a negative number (the square is always positive).
√(x+5)² = +/- √-48
x+5 = +/- √-48
IMPOSSIBLE
You can write the result in imaginary numbers
x+5=+/- 4i√3
Answer:
125
Step-by-step explanation:
1.25=125/100=125%
Answer:
Step-by-step explanation:
To write a linear inequalities we use the same guidelines as linear equations. They are written in the form, and or with any other inequality signs.
One line has y-intercept 2 and slope is -5/1 (down 5 and over 1).
This means the equation is
.
Test a point not on the line to determine the direction of the inequality sign.
(0,0)
This is true but not the equation becasue (0,0) is not shaded.
The other line has y-intercept -4 and slope 3/1 (up 3 and over 1).
This means the equation is
.
Test a point not on the line to determine the direction of the inequality sign.
(0,0)
This is false and the equation since (0,0) is not in the shaded portion.
Use the half angle identity, tan157.5=(1-cos315)/sin315
cos315=cos(-45)=√2/2, sin315=-√2/2
tan157.5=(1-√2/2)/(-√2/2)=(2-√2)/(-√2)=(2√2-2)/(-2)=1-√2