Answer:
The expression (-root3·a - a)², can be simplified into the form a² × (4 + 2·√3)
Step-by-step explanation:
The given expression can be written as follows;
(-root3·a - a)² = (-√3·a - a)²
Which can be expanded to give;
(-√3·a - a) × (-√3·a - a) = 3·a² + 2·√3·a² +a²
We collect like terms to get;
3·a² + 2·√3·a² +a² = 3·a² +a²+ 2·√3·a² = 4·a² + 2·√3·a²
We factorize out the common coefficients of the terms to have;
4·a² + 2·√3·a² = a² × (4 + 2·√3)
Which gives the initial expression (-root3·a - a)², to presented in the form a² × (4 + 2·√3).
Given the dimensions of 72 yards by 1.5 yards, we can find that the total area of material the manufacturer has is 72 x 1.5 = 108 sq. yards. Dividing this by the 2.7 sq. yards required per shirt, they can make 108/2.7 = 40 shirts.
Answer:
$2.13
Step-by-step explanation:
If she paid $25.56 for a total number of 12 gallons, then you need to divide 25.56 by 12, and you will get 2.13. Meaning each gallon cost $2.13.
You can also check your answer by multiplying 2.13 by 12.
Answer:
IDK try searching it up
Step-by-step explanation:
