Answer:
Step-by-step explanation:
Given
Sum of l, w and d be at most 61
Required
Write as inequality
First, we need to determine the sum of l, w and d
Next, we determine the type of inequality.
At most 61 means less than or equal to 61
So, the expression becomes:
Substitute value for Sum
3x+3y=27
x-3y= -11
-x-y=-9
x-3y=-11
-4y= -20
y= 5
x-3•5= -11
x=4
(x,y)= (4,5)
The correct value is 18 for the range
Answer:
-4
Step-by-step explanation:
f(x)=-2x^2 - 3x + 5
Let x = -3
f(-3) = -2(-3)^2 -3(-3) +5
-2 *9 +9 +5
-18+9+5
-4