Find the circumference of a circle whose radius is 15.4cm
2 answers:
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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.
5. Center (-2,3) Radius 3
6. Center (-2,0) Radius √11
7. Center (0,-4) Radius 5
8. Center (3/2,-4) Radius 3√17/2
9. Center (6,8) Radius 4
10. Center (-1,-2) Radius 4
Ive attached what the graphs will look like, I cannot add the last graph since its the image limit for this website.
Hope this helps, feel free to PM me if you are still having trouble and need the last graph :)
6. Center (-2,0) Radius √11
7. Center (0,-4) Radius 5
8. Center (3/2,-4) Radius 3√17/2
9. Center (6,8) Radius 4
10. Center (-1,-2) Radius 4
Ive attached what the graphs will look like, I cannot add the last graph since its the image limit for this website.
Hope this helps, feel free to PM me if you are still having trouble and need the last graph :)