Answer:
perimeter of Quad A
=
6
+
9
+
9
+
12
=
36
method 1
Quad B the shortest length is 2 so all lengths have been scaled down by a scale factor of 3
Perimeter Quad B
=
2
+
3
+
3
+
4
=
12
method 2
scale factor of linear measurements is 3
perimeter Quad B
=
36
÷
3
=
12
Step-by-step explanation:
12 units. Hope it helps. :-)
Answer:
25748 km
Step-by-step explanation:
The distance at which astronauts travel can be obtained by calculating the Circumference of the circle.
Circumference of a circle = 2πr ; π = 3.14
Radius = 4100 km
Circumference of a circle = 2 * 3.14 * 4100
Circumference of the circle = 25748 km
Hence, astronauts travel a distance of 25748 km
Answer:
This system has infinite solutions and it would be much easier to solve it by elimination but substitution it is.
Step-by-step explanation:
-3x+3y=9
-x+y=3
Isolate either x or y in any of the equations. I'll go with the second.
y = 3+x
Now substitute this for y in the first equation.
-3x+3(3+x)=9
Distribute the 3
-3x+9+3x=9
Combine like terms:
9=9
0=0
It's infinite
