Answer:
B
Step-by-step explanation:
It is B because 192 has a square factor of 64. The width √64*3=√182. It is not the simplest form so take out √64 * √3. Root of √64 = 8 which results 8√3
Answer: The width is 10.2 inches, the perimeter is 71.4, the area is 260.1.
Step-by-step explanation: So first i divided 25.5/5 which equals 5.1. The ratio is 2:5 so I know that i have to multiply 5.1x2 which is 10.2, thats how you get the width. The perimeter I just did 25.5+25.5+10.2+10.2 =71.4. For the area I just multiplied 25.5x10.2=260.1.
Answer:
9 ft
Step-by-step explanation:
Let's begin with the formula for the volume of a square pyramid. If s is the base length, then the area of the base is s^2. The volume of the pyramid is then V = (1/3)(base area)(height). We know the volume and the base length (s), and want to find the height. Solving V = (1/3)(base area)(height)
for height, we get:
3V = (base area)(height), or
3V
---------------- = height
base area
Substituting 75 ft^3 for V and (5 ft)^2 for base area, we get:
3(75 ft^3) 9 ft
height = ------------------ = ----------------- = 9 ft
25 ft^2 1
Since we see u² as the first term, we know that the factored form will be something like: (u ± something)(u ± something)
We also know that the sum of these 'somethings' is 1, and he product is negative 30 (because that's 1 u, and -30). The two numbers that have a sum of 1 and a product of -30 are 6 and -5, so the factored form of this trinomial is (u + 6)(u - 5)