Answer:
<u>f(5) = -45</u>
Step-by-step explanation:
f(x) = -5(x + 4)
<h3>f(5)</h3>
f(5) = -5(x + 4)
f(5) = -5(5 + 4)
f(5) = -5(9)
f(5) = -45
Answer:
19 m
Step-by-step explanation:
Perimeter = 2(length + width) ; P = 2(l+w) - - (1)
Area = Length * width ; A = l*w - - - (2)
76 = 2(l+w)
76/2 = l+w
l+w = 38
l = 38 - w
Put l = 38 - w in (1)
A = (38-w)*w
A = 38w - w²
At maximum point:
dA/dw = 0
dA/dw = 38 - 2w
38 - 2w = 0
38 = 2w
w = 38/2
w = 19
Answer:
Step-by-step explanation:
1 dozen eggs = 12 eggs
cost of one dozen = 24y+36
= 12( 2y+3)
cost of one egg = 2y+3
