Step-by-step explanation:
-2j < -14
Divide both sides by -2:
j > 7. (D)
How the quadratic formula works:
For any quadratic equation ax² + bx + c = 0, the solution is

.
In the case of our equation 7x² - x = 7, first we need to subtract 7 from each side so that we have 0 on the right.
7x² - x - 7 = 0
Identify the values of a, b, and c.
a = 7, b = -1, and c = -7.
Plug these into our quadratic formula and solve.

There are two values for x: (1+√197)/14 and (1-√197)/14.
The approximate values for these are 1.073976 and -0.931119.
Answer:
-15
Step-by-step explanation:
the new temperature since it went down
-12-3= -15
Answer:
2
Step-by-step explanation:
See the photo for the steps. :)
Answer: 7
Step-by-step explanation:
just use a comparison
3/12 = x/28
1/4 = x/28
x = 7