5 x 6 = 30
The area is 30
Answer:
3 miles per hour.
Step-by-step explanation:
To get his walking rate in miles per hour, we multiply 1/5 by its reciprocal, 5/1. We also multiply 6/10 by 5/1. This gets us 30/10 of a mile in an hour. We can simplify 30/10 to 3. This means he walks at 3 miles per hour.
2x^2(x+2) +6(x+2) = (2x^2 +6)(x+2) = 2(x^2 +3)(x+2)
so this mean that the 4th choice will be right sure
A convex polygon is a simple polygon (not self-intersecting) in which no line segment between two points on the boundary ever goes outside the polygon. Equivalently, it is a simple polygon whose interior is a convex set.
The oposite angles must be equal and adjacent angles must be supplementary
so
D=B and A=C
and
A+D=180=A+B=B+C=C+D
so ifD=42, then
A+D=180
A+42=180
minus 42 both sides
A=138=C
angle C has to be 138 degrees
