You can put it in a TI84 calculator and find the answer.
Answer:
The correct answer is units.
Step-by-step explanation:
A physical quantity must have a determined unit so it has a numerical value assigned to it. A unit is a standardized way to relegate a numerical amount to properties of a specific measurement. For instance, the meter (m), second (s), and kilogram (kg) are specific units that permit us to relegate numbers to estimations of length, time, and mass measurements.
(x+3)(x+3) = x^2 -3 + 3x
x^2 + 3x + 3x + 9 = x^2 + 3x - 3
x^2 + 6x + 9 = x^2 + 3x - 3
6x + 9 = 3x - 3
3x + 9 = -3
3x = -12
x = -4
Check:
(-4+3)^2 = (-4)^2 - 3(1+4)
(-1)^2 = 16 - 3(5)
1 = 16-15
1 = 1 :)
Answer:
Expression: 3.5((12x18) + 13²)
Step-by-step explanation:
Since George is going to put carpeting in two different rooms, one rectangular and one square, you need to find the area of each room, add the sum and then multiply the total area needed by the cost per square foot of carpet. The area of a rectangle is: a = lw, where l=length and w = width. The area of a square is: a = s², where s = side of the square. Take the sum of these two areas would be (12 x 18) + 13² or 213 + 169 = 382. Since the cost of the carpet is the same per square foot, you can multiply the entire sum by the cost of $3.50 or: 3.5((12 x 18) + 13²) or 3.5(382) = $1,337.
I think 0 and 1 because it can be right in the number line
