Classify the expression: 5x + 2.
2 answers:
<u>Answer:</u>
Option: A. The given equation is a linear expression
<u>Solution: </u>
The linear expression is the expression whose highest degree is 1 after combining the degrees of all the terms in the expression.
Here in the problem the expression is + 2 which can also be written as,
We can see that the degree of term is 1 and the degree of term 2 is also 1
So, the highest degree of the given expression is =1
Hence, the equation is a linear expression.
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Answer:
(a)123 km/hr
(b)39 degrees
Step-by-step explanation:
Plane X with an average speed of 50km/hr travels for 2 hours from P (Kano Airport) to point Q in the diagram.
Distance = Speed X Time
Therefore: PQ =50km/hr X 2 hr =100 km
It moves from Point Q at 9.00 am and arrives at the airstrip A by 11.30am.
Distance, QA=50km/hr X 2.5 hr =125 km
Using alternate angles in the diagram:
(a)First, we calculate the distance traveled, PA by plane Y.
Using Cosine rule
SInce aeroplane Y leaves kano airport at 10.00am and arrives at 11.30am
Time taken =1.5 hour
Therefore:
Average Speed of Y
(b)Flight Direction of Y
Using Law of Sines
The direction of flight Y to the nearest degree is 39 degrees.
