2x^3-42x-40=0
2x^3-42x=40
2x(x^2-21)=40
a. 2x=40=>x=20
b. x^2=21+40=>x^2=61=>x=+-(radical(61)
Answer:
$114.17
Step-by-step explanation:
First we need to convert cubic yard to cubic feet.
One yard is equivalent to three feet, so one cubic yard is 3^3 = 27 cubic feet.
So the cost of one cubic feet is 64/27 = $2.3704
We also need to convert from inches to feet.
One inch is 1/12 feet, so 2 inches is 2/12 = 1/6 feet
Now we need to find the volume of the slab:
Volume = 17 * 17 * (1/6) = 48.1667 ft3
Now, to find the cost, we can use a rule of three:
1 cubic feet -> $2.3704
48.1667 cubic feet -> X
X = 48.1667 * 2.3704 = $114.1743
Just add $1.25 to $4.75 till you get up to $9.75 and count how many times you added $1.25 which should be 4 times
The answer is 101.38 or 101.380 : )
<em><u>Algebra</u></em><em><u> </u></em><em><u>1</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>Functions</u></em>
y | y ≤ 4
