Let the distance traveled by car X be x km
<span>let the distance traveled by car Y by y km </span>
<span>their paths form a right-angled triangle. </span>
<span>Let the distance between them be D km </span>
<span>D^2 = x^2 + y^2 </span>
<span>2D dD/dt = 2x dx/dt + 2y dy/dt </span>
<span>dD/dt = (x dx/dt + y dy/dt)/D </span>
<span>at the given case: </span>
<span>x = 60, y = 80 , dx/dt = 80, dy/dt = 100 </span>
<span>D^2 = 60^2 + 80^2 = 10000 </span>
<span>D = 100 </span>
<span>dD/dt = (60(80) + 80(100))/100 </span>
<span>= 128 </span>
1. 0.7(29.95)
2. 1.04(284.99)
3. 49(0.75)(1.06)
4. 35+ 0.80m
5. 4500 (1.12)
Hope this helps!
multiply 675 by 0.25 to find 25% of 675. the answer would be 168.75
hope this helps!
Answer:
nether
Step-by-step explanation:
because you have a grafe and do it that way
