Answer:
-1.9f-20
Step-by-step explanation:
-2.7f+0.8f-16-4
<em>Collect similar items</em>
-2.7f+0.8f=-1.9f
=-1.9f-16-4
<em>Subtract the numbers</em>
-16-4=-20
=-1.9f-20

Equation of straight line in slope form = 》( y-y1) = m (x - x1)
Thus here solving ....
y +3 = -3 (x-4)
=》 y+3= -3x +12
=》 y = -3x +9
option c.) y = -3x +9
we will use formula

where
theta is angle
n is number of sides
we are given
n=15
we can plug it

now, we can solve for theta



so,
option-D.........Answer
Answer:
The minimum cost per unit is obtained for an order of 8 units.
Step-by-step explanation:
Since the total cost is modeled by;
C(x)=5x²+320
Then;
1 unit costs; C(x)=5(1)²+320 = 325
cost per unit 325/1 = 325
8 units costs; C(x)=5(8)²+320 = 640
cost per unit = 640/8 = 80
80 units costs; C(x)=5(80)²+320 = 32320
Cost per unit = 32320/80 = 404
The minimum cost per unit is obtained for an order of 8 units.