Answer:
x = ± 8
Step-by-step explanation:
Given
4x² - 256 = 0 ( add 256 to both sides )
4x² = 256 ( divide both sides by 4 )
x² = 64 ( take the square root of both sides )
x = ± = ± 8
Solutions are x = - 8, x = 8
Answer:
The parallel line has slope
The perpendicular line has slope
Step-by-step explanation:
Equation of a line:
The equation of a line has the following format:
In which m is the slope.
Parallel lines:
Parallel lines have the same slope.
Perpendicular lines:
If two lines are perpendicular, the multiplication of their slopes is -1.
In this question:
We have the following line:
Placing it in the general format
So this line has slope
Parallel line:
Same slope, so the parallel line has slope
Perpendicular line:
Multiplication of the slopes is -1. So
The perpendicular line has slope
Answer:
4:10
Step-by-step explanation:
Absolute value is the number made positive. For -4:10, it would be 4:10. I don't know what the colon means but that's what it is.
Answer:
Given that a cylinder has a base area of 20.7 in^2 and lateral area of 25.3 in^2. The surface of the cylinder will be given by:
SA=πr^2+πrl
where
πr^2=base area=20.7 in^2
πrl=lateral area=25.3 in^2
SA=(base area)+(lateral area)
SA=20.7+25.3
SA=52.3 in^2