Answer:
x=4.63
Step-by-step explanation:
Area = (1/2) (base) (height)
20 = (1/2) (x+4) (x)
40 = x²+4x
x²+4x-40=0
Put in quadratic equation:
x=
x=
x=4.63324958071 or x=-8.63324958071
Since x can't be negative in this case we take our answer to be 4.63324958071, which rounds to 4.63
21,600 minutes because 1 hour equals 60 mins. while half in an hour is 30 mins. and 60 + 30 = 90 so you multiply 240 by 90 getting 21,600
Answer: Vertical Line
Step-by-step explanation: The line x = -5 is a vertical line at -5. All of the coordinates on the line have an x value of value, which results in a vertical line.
Answer: 13.5 hours or 14 hours (if you round it)
Step-by-step explanation:
* 15
=13.5
Answer:
A. The circle has been shifted 3 units to the right and 8 units down, r=6
Step-by-step explanation:
Recall that the equation of a circle is 
where 
is the center of the circle and 
is the radius.
Given that the equation is 
, this tells us that the center of the circle is at 
and the radius is 
. Since the value of 
represents the amount of horizontal shift from the origin and 
represents the amount of vertical shift from the origin, then the circle was shifted 3 units to the right and 8 units down.
