Can the sine rule relationship in trigonometry be used with non right angled triangle?
1 answer:
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Answer:
Pr(of getting 1grape ball, 1 cherry ball and 1 lemon ball) =0.20832
Step-by-step explanation:
Let the grape falvored ball be represented by G,
Cherry flavored balls be C
Lemon flavored balls be L
the possible order of picks for getting 1grape ball, 1 cherry ball and 1lemon ball are; GCL or GLC or CGL or CLG or LGC or LCG
Pr(of getting 1grape ball, 1 cherry ball and 1 lemon ball)
= Pr(GCL) or Pr(GLC) or Pr(CGL) or Pr(CLG) or Pr(LGC) or Pr(LCG)
with replacement we have;
Probability =
=
= 0.03472 + 0.03472 +0.03472 + 0.03472 + 0.03472 + 0.03472
=0.20832
The speed of the planes are 300 miles per hour and 355 miles per hour.
<u>Solution:</u>
Given, Two planes are 1965 miles apart, flying toward each other.
Their speeds differ by 55 mph.
They pass each other in 3 hours,
We have to find what is the speed of each?
Let the speed of 1st plane be s miles per hour, then speed of the other plane will be s + 55 miles per hour.
And, distance travelled by 1st plane be d, then distance travelled by other plane will be 1965 – d miles
Now, we know that, distance = speed time
So, for 1st plane ⇒
For 2nd plane ⇒
By using 1st plane equation
1965 – 3s = 3s + 165
1965 – 165 = 3s + 3s
6s = 1800
s = 300
So, speed of 1st plane is 300 miles per hour, then speed of 2nd plane will be 300 + 55 = 355 miles per hour.
Hence, the speed of the planes are 300 miles per hour and 355 miles per hour.