Part a: a mechanic buys 2 barrels of oil. if there are 31.5 gallons in every barrel and approximately 3.785 liters for every gallon, approximately how many liters of oil did the mechanic buy? part b: the mechanic plans to pour the oil into 2–liter containers. how many containers will the mechanic need to hold all of the oil? explain your answer.

A: 238.455 L

B: 120 containers

Step-by-step explanation:

A:

31.5 × 2 = 63 gallons

63 gallons = 3.785 × 63 = 238.455 L

B:

because we want to pour 238.455L oil into 2L containers,we can do this:

238.455 ÷ 2 = 119...0.455

we can pour the oil into 119 containers,but there is still 0.455L oil.

So,we need one more containers for 0.455L oil.

119 + 1 = 120 containers.

yor answer is 7/6 times 5

step-by-step explanation:

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.