ax² + bx + c = 0
You know:
a = -2
b = 1
c = 3
The 1st option is your answer
-2x² + x + 3 = 0
a = -2
b = 1
c = 3
Answer:
idkkkk lol
Step-by-step explanation:
Answer:
The room dimensions for a minimum cost are: sides of 10 feet and height of 8.75 feet.
Step-by-step explanation:
We have a rectangular room with sides x and height y.
The volume of the room is 875 cubic feet, and can be expressed as:
With this equation we can define y in function of x as:
The cost of wall paint is $0.08 per square foot. We have 4 walls which have an area Aw:
The cost of ceiling paint is $0.14 per square foot. We have only one ceiling with an area:
We can express the total cost of painting as:
To calculate the minimum cost, we derive this function C and equal to zero:
The sides of the room have to be x=10 feet.
The height can be calculated as:
The room will have sides of 10 feet and a height of 8.75 feet.
<h3>For the lowest common multiple you do your times tables.</h3><h3>For example,5,10,15,20,25,30,35,40,45,50.</h3><h3>Those are your times tables of 5.</h3><h3>On the other side do your 6 times tables up to 60.</h3><h3>6,12,18,24,30,36,42,48,54,60.</h3><h3>Now that you have got both,Write down the smallest number in them that they both have.</h3><h3>For example,it would be<u> 30.</u></h3>
This is because that’s the smallest number in the multiple of both numbers.
Answer:
39.85
Step-by-step explanation:
okay i put what i did to solve the question...