Answer:
a rectangle
Step-by-step explanation:
1. a quadrilateral has 4 sides. this has 4 sides. this is a quadrilateral
2. a parallelogram has (a) opposite sides and (b) opposite angles of equal length. here, all sides are equal so (a) can be checked off. opposite angles are also equal so (b) can be checked off
3. a rhombus has 4 sides of equal length. all 4 sides are of equal length so this is a rhombus
4. a rectangle has 4 right angles. the angles here are not perpendicular to each other. thus, right angles are not formed and this is not a rhombus
Both angles are the same so you do
5n-20=3n
-20=3n-5n
-20= -2n
n= -20 divide by -2
So n is -2
Answer:
Equating two of the equations;
3x-10=2x
-10=2x-3x
-10=-x
X=10
Therefore x=10
Answer:
A and C are
Step-by-step explanation:
Scientific notation numbers are written in the form of x.x
ANSWER:
We know that,
Speed = Distance/Time
So, Time taken = 20kmh-¹/160km
