Answer:
w= 7/4 +1/4 √89 OR w= 7/4 -1/4 √89
Step-by-step explanation:
2w^2-8w-1= (w-2)^2
Multiply (w-2)^2 by (-1)
2w^2-8w-1= -w+2^2
Add w to both sides
2w^2-7w-1= 4
Add 1 to both sides therefore that -1 cancels
2w^2-7w=5
Get the equation equal to 0 by subtracting 5 from both sides
2w^2-7w-5=0
Use the quadratic formula to solve
x= -(-7) plus or minus √(-7)-4(2)(-5)/2(2)
7 plus or minus √89/4
<span>2/3 (x-7)= -2
x - 7 = -2 * 3/2
x - 7 = -3
x = -3 + 7
x = 4</span>
Answer:
24
Step-by-step explanation:
I think there the same for each but I hope I helped
Volume of sphere formula: V = 4/3πr³
We are given the radius of 4, so, input that with r in the formula.
V = 4/3π(4)³
As we can see, option B has what we wrote above. So, that is the correct answer.
The answer is Option B.
Best of Luck!
Answer:
Step-by-step explanation:
First, use distribution to simplify
Then, simplify further by combining like terms
Solve
