The greatest place value is the tens spot which 2 is in the tens spot so we need to round up since 5 is next to the 2. The answer would be 30
Part (a)
<h3>Answer: y1 and y3 are perpendicular</h3>
This is because the two slopes 2 and -1/2 multiply to -1. Perpendicular slopes multiply to -1 assuming neither line is vertical or horizontal.
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Part (b)
Graph each line to see where they cross. The three points of intersection are
(0,4)
(2,-2)
(4,2)
The order of the points doesn't matter.
You could also form three systems of equations pairing up the equations, and solving each system. That way you can find the points of intersection. Graphing may be a better and faster route in my opinion. See the diagram below.
Answer:
he can row 2 miles in an hour
Step-by-step explanation:
When canoeing it takes about 20-30 minutes to row atleast 1 hour there are 2 sets of 30 minutes in an hour meaning he can row 2 miles
Answer:
Every hour the tempreture goes up 2.5 degrees
Step-by-step explanation:
The time (hours) goes up in segments of 2, while the degrees goes up in segments of 5. This means that in order to get the correct rate of change, you have to divide both numbers by 2.
Answer:
90
Step-by-step explanation:
30+60=y=90
I hope this helps