3 years ago

What multiples to 12 and add up to -6?

1 answer:

3 0

You'll most likely have to use the quadratic formula to find your answer.

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snow_lady [41]

Answer:

25 sheets of plywood will be needed

Step-by-step explanation:

Each sheet of plywood measures $4ft*8ft=32ft^{2}$ .

We have to cover the surface of the house, minus the surface of the hole of the stairs.

$Surface _{to cover} = Surface _{house} -Surface _{hole}= (28ft*30ft)-(12ft*4ft)= 840ft^{2}-48ft^{2}=792ft^{2}$

To know how many sheets will be needed, we divide the surface to be covered by the surface of each sheet

$Sheets_{needed} =\frac{Surface _{house}}{Surface _{sheet}} =\frac{792ft^{2}}{32\frac{ft^{2}}{sheet} } = 24,75 sheets$

As we can't buy 0,75 of a sheet, we round it up, i.e. we will need 25 sheets of plywood for subflooring.

8 0

3 years ago

viktelen [127]

X=10 Y=1.25; X=8 Y=1; X=6 Y=0.75; X=4 Y=0.5

4 0

2 years ago

maks197457 [2]

Answer:

x = 5 ± i √ 11 /6

Step-by-step explanation:

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x .

8 0

3 years ago

marissa [1.9K]

122-14 = 108
108÷3 = 36
Your answer is 36

5 0

3 years ago

vodka [1.7K]

Answer:

−3.6

7.5

6.3

Step-by-step explanation:

Plug it into a calculator if they are not correct.

5 0

3 years ago