<span>times t hours and (t+2) hours)
d1 = 50 t
d2 = 40(t+2)
50 t = 10 + 40(t+2)
10 t = 90
t = 9
</span>
Step-by-step explanation:
You have this rule, if there is < 30° then value of y is
y=12✓3:2
y=6√3
And Pitagora's theorem:
c²=a²+b²
In this case:
(12√3)²=y²+x²
Then x is:
x²= (12√3)²-y²
x²= (12√3)²-(6√3)²
x²=432- 108
x²= 324
x=✓324
x=18cm
Your answer would be 3 an 3/5 :) hope i helped ! :D:D:D:D:D:D:D
0.8 is smaller than 0.81 by the 0.01
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