Answer:
B (300, 400)
Step-by-step explanation:
The profit maximization will be when the sum of the products will be greater. The maximum profit will be when x is 300 and y is 400. If we put in the equation :
P = 40x + 55 y
A - When x = 0 , y = 500
P = [40 * 0] + [55 * 500]
P = 27500
B -
When x = 300 , y = 400
P = [40 * 300] + [55 * 400]
P = 34000
C -
When x = 380 , y = 200
P = [40 * 380] + [55 * 200]
P = 26200
D -
When x = 400 , y = 0
P = [40 * 400] + [55 * 400]
P = 16000
Answer:
z = 137°
Step-by-step explanation:

Hope this helps
Answer:

Step-by-step explanation:
Simplify the following expression:

-Subtract
from
:


-Add
and
:


Therefore, the final answer is
.
Answer:

Step-by-step explanation:
Red blood cell: 
Grain of sand: 
The "how many times larger" part can be figured out by forming a ratio between the two diameters above:

Note that dividing the powers of ten corresponds to subtracting the denominator power from the numerator power of 10.