Answer:
x = 21
Step-by-step explanation:
(3x+1) ^1/3=4 means that the 1/3 is an exponent that can be rewritten as a cube root.
You can bring the cube root to the other side of the equation.
1. I chose to bring it to the other side of the equation, making it a cube.
(3x+1) ^1/3 = 4
(3x+1) = 4^3
(3x+1) = 4 * 4 * 4
(3x+1) - 1 = 64 - 1
3x/3 = 63/3
x = 21
1. B is 4 and c is 8
2. A and b are 5square root of 2
4. B is 7 and c is 14
5. A and b is 6 square root of 2
One hundred twenty thousand
Answer:
b. {x l -9/7 < x <17/7}
Step-by-step explanation:
l 4 - 7xl -5 < 8
Adding 5 on both sides, we get
l4 - 7xl < 13
Absolute function has two values.
{ 4 - 7x < 13 and (4-7x) > -13}
Now let's solve for x.
-7x < 9 and -7x > -17
x > -9/7 and x < 17/7
Now we have to combine the two inequalities and write the solution
{x l -9/7 < x <17/7}
Answer: b. {x l -9/7 < x <17/7}
Hope this will helpful.
Thank you.
