Find the value of a,if the distance between the points A(-3, -14) and B (a.-5) is 9 unit
Answers
Answered by
1
Answer:
-3
Step-by-step explanation:
using the distance formula
AB^2 = {a - (-3)}^2 + {-5 - (- 14)}^2
9^2 = (a + 3)^2 + (-5 + 14)^2
81 = (a+3)^2 + (9)^2
81 = (a+3)^2 + 81
this gives
(a+3)^2 = 0
a + 3 = 0
so, a= -3
Answered by
0
Answer:
A card is drawn from an ordinary pack and a gambler bets that it is a spade or an ace.
What are the odds against his winning this bet?
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