3x^2 = 2(x + 4)
3x^2 = 2x + 8
3x^2 - 2x - 8 = 0
(3x + 4)(x - 2) = 0
3x + 4 = 0
3x = -4
x = -4/3
x - 2 = 0
x = 2
solution is : x = -4/3 or x = 2 <==
Answer:
x > 9/5
Step-by-step explanation:
Step 1: Write inequality
2/3x - 1/5 > 1
Step 2: Solve for <em>x</em>
- Add 1/5 to both sides: 2/3x > 6/5
- Divide both sides by 2/3: x > 9/5
Here we see that any <em>x</em> value greater than 9/5 will work.
Answer:
48 units
Step-by-step explanation:
36 is 75% of what number
36 = .75n
n = 36/.75
n = 48
Answer:
a) 
, b) 
Step-by-step explanation:
a) The rate of change of the brightness of the Cepheid can be determined by deriving the function in time:
b) The rate of increase after one day is:
Answer:
In math, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. You may use a slope while using coordinate planes.
