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cupoosta [38]
3 years ago
14

A rectangular box is to have a square base and a volume of 20 ft3. If the material for the base costs $0.30 per square foot, the

material for the sides costs $0.10 per square foot, and the material for the top costs $0.20 per square foot, determine the dimensions of the box that can be constructed at minimum cost.
Mathematics
1 answer:
fomenos3 years ago
8 0

Answer:

Step-by-step explanation:

Im sorry i dont really know ur anwer.  Hope someone else can help you.

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Please help! it’s due really soon :/
ladessa [460]

Answer:

4. 43

5. 78

6. 364

Step-by-step explanation:

15 (1)

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3 0
3 years ago
Read 2 more answers
How to solve 3x+y=6 and y=-3 using substation method
mafiozo [28]

Answer:

x=3

Step-by-step explanation:

since they give you y this is a very simple problem

simply replace y with -3 and get

3x+(-3)=6

adding a negative number is the same as subtracting a positive number

3x-3=6

add 3 on both sides

3x=9

divide by 3 on both sides

x=3

7 0
3 years ago
If x/y + y/x = -1 , ( x unequal y, y unequal 0) then the value of x^2 - y^2 is?
Maurinko [17]

Take your original equation \frac{x}{y} +\frac{y}{x} =-1

and multiply both sides by xy to remove the fractions. You are left with

x^2+y^2=-xy

So, x^2+y^2=-xy

Update: There is no numerical answer that can be found without being given a value for either x or y

3 0
3 years ago
Read 2 more answers
Please solve this with explanations!
lyudmila [28]

Answer:

D. -2x - 8

Step-by-step explanation:

1) Simplify 1/3(6x+15) to 6x+15/3

-6x+15/3 - 3

2) Factor out the common term 3.

-3(2x+5)/3 - 3

3) Cancel 3.

-(2x+5)-3

4) Remove parentheses.

-2x-5-3

5) Collect like terms.

-2x+(-5-3)

6) Simplify

-2x-8

3 0
1 year ago
The graph of y = x^2 has been translated 7 units to the left. The equation of the resulting parabola is _____.
Marina86 [1]
Move c  units to left means add c to every x

move 7 so add 7 to every x

y=(x+7)^2


2nd option iis answer
3 0
3 years ago
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