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Answer:
Hey
Step-by-step explanation:
Answer:
B = (-7,10)
Step-by-step explanation:
Given that , a line AB has midpoint (-2,4) and the coordinates of A is ( 3 , -2). We need to find out the coordinates of B .
- Let coordinate of B be ( p,q ). We can use midpoint formula , as ,
=> Midpoint = ( x₁ + x₂ / 2 , y₁ + y₂/2 )
=> ( -2,4 ) = ( p + 3)/2 , ( q -2 )/2
=> -2 = p + 3/2
=> p + 3 = -4
=> p = -3 - 4
=> p = (-7)
<u>Also </u><u>:</u><u>-</u><u> </u>
=> q - 2/2 = 4
=> q -2 = 8
=> q = 8 + 2
=> q = 10
<h3>
<u>Hence</u><u> the</u><u> </u><u>coordinates</u><u> </u><u>of </u><u>B </u><u>is</u><u> </u><u>(</u><u> </u><u>-</u><u>7</u><u>,</u><u>1</u><u>0</u><u> </u><u>)</u><u> </u><u>.</u></h3>
We must first find the rate taken to cover 1500.0 m within 14 min and 34.56 sec. We can first convert the time into seconds and hence, we have time = 14(60) + 34.56 = 874.56 seconds.
Recall that
rate = distance/ time.
And using the given for the men's world record, we have
rate = 1500.0 m / 874.56s = 1.715 m/s
Now, to find the time taken to cover 0.350 miles, we can first convert the distance to meters then use the equation given below.
time = distance/rate
where distance is equal to 0.350(1609) = 563.15 m. Hence, we have
time = 563.15 / 1.715 = 328.37 s
From this, we can see that it will takes 328.37 seconds to cover 0.350 miles.
<span>Answer: 328.37 seconds</span>
