Distance Formula:
Point 1: (9,0)
Point 2: (5,-8)
D = sqrt[ (5 - 9)^2 + (-8 - 0)^2 ]
D = sqrt[ (-4)^2 + (-8)^2 ]
D = sqrt[ 16 + 64]
D = sqrt(80)
Hope this helps!
A ruler costs pence. A pen costs 10 pence more than the ruler. Write an expression, in terms of , for the total cost of 3 pens a
1 answer:
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