Instead of using the quotient rule, you can first expand <em>y</em> :
<em>y</em> = (4<em>x</em> - 1)^2 / <em>x</em> ^2 = (16<em>x</em> ^2 - 8<em>x</em> + 1) / <em>x</em> ^2 = 16 - 8/<em>x</em> + 1/<em>x</em> ^2
Then the derivative is
d<em>y</em>/d<em>x</em> = -8/<em>x</em> ^2 - 2/<em>x</em> ^3
The tangent to the curve at (-1, 25) then has a slope or gradient of
d<em>y</em>/d<em>x</em> = -8/(-1)^2 - 2/(-1)^3 = -6
Answer: 5.4
Step-by-step explanation:
Answer:22
Step-by-step explanation:
If you do 673/31 it equals 21.7096774194 but you can’t have 21 buses you do 22 because that gets every student on a bus
The angle formed by the intersection of 2 tangents outside the circle equals half the difference of the <span>intercepted arcs.
</span>far arc = 253°
near arc = 360 - 253 = 107°
x = (253 - 107)/2 = 146/2 = 73°
