Answer:
x = (i sqrt(7))/4 - 3/4 or x = -(i sqrt(7))/4 - 3/4
Step-by-step explanation:
Solve for x:
x - 1 - 2/x = 3 x + 2
Bring x - 1 - 2/x together using the common denominator x:
(x^2 - x - 2)/x = 3 x + 2
Multiply both sides by x:
x^2 - x - 2 = x (3 x + 2)
Expand out terms of the right hand side:
x^2 - x - 2 = 3 x^2 + 2 x
Subtract 3 x^2 + 2 x from both sides:
-2 x^2 - 3 x - 2 = 0
Divide both sides by -2:
x^2 + (3 x)/2 + 1 = 0
Subtract 1 from both sides:
x^2 + (3 x)/2 = -1
Add 9/16 to both sides:
x^2 + (3 x)/2 + 9/16 = -7/16
Write the left hand side as a square:
(x + 3/4)^2 = -7/16
Take the square root of both sides:
x + 3/4 = (i sqrt(7))/4 or x + 3/4 = -(i sqrt(7))/4
Subtract 3/4 from both sides:
x = (i sqrt(7))/4 - 3/4 or x + 3/4 = -(i sqrt(7))/4
Subtract 3/4 from both sides:
Answer: x = (i sqrt(7))/4 - 3/4 or x = -(i sqrt(7))/4 - 3/4
Answer:
I may be wrong but A
Step-by-step explanation:
Answer:
Step-by-step explanation:
<u>The volume of a cylinder:</u>
- V = πr²h, where r-radius, h-height
<u>New dimensions of the cake:</u>
<u>The volume of the bigger cake:</u>
- V1 = π*(2r)²*(3h) = 12*πr²h = 12V
- V1/V = 12
The ration of volumes is 12 : 1
Answer:
![4\sqrt[3]{307}](https://tex.z-dn.net/?f=4%5Csqrt%5B3%5D%7B307%7D)
o 26.98398684 en forma decimal
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
