It’s not a good idea to beg
Answer l=69m
Step-by-step explanation:
l= A/w= 3657/53=69m
use the formula A=wl
Answer:
b) Circle
Step-by-step explanation:
<em>All</em> of the conic sections have vertices and foci. These features are not usually talked about for a circle, so perhaps "circle" is the expected answer.
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A circle is a special case of ellipse with eccentricity 0. Its foci are coincident at its center, and its vertices are the ends of any pair of perpendicular diameters.
Answer:
Use fx graph to draw this so u can see the graph easier
Step-by-step explanation:
Answer:
q = sqrt(a/b)
Step-by-step explanation:
<em>A warehouse selling cement has to decide how often and in what quantities to reorder. It is cheaper, on average, to place large orders, because this reduces the ordering cost per unit. On the other hand, larger orders mean higher storage costs. The warehouse always reorders cement in the same quantity, q. The total weekly cost, C, of ordering and storage is given by C=aq+bq, where a, b are positive constants.</em>
Minimum C?
Why, find where dC/dq is zero.
C = a/q +bq -------a and b are positive constants,
C = a*q^(-1) +b*q
Differentiate both sides with respect to q,
dC/dq = a[-1 *q^(-2)] +b
dC/dq = -a/(q^2) +b
Make dC/dq zero,
0 = -a/(q^2) +b
a/(q^2) = b
a/b = q^2
q = sqrt(a/b) ----the value of q that will give minimum C.
It is minimum because the 2nd derivative of C, [2a/(q^3)], is positive