Answer:
A
Step-by-step explanation:
Answer:
x = 25
Step-by-step explanation:
120 = 70 + 2x
120 - 70 = (70 - 70) + 2x
50 = 2x
50/2 = 2x/2
x = 25
Create and solve an equation of ratios:
10 ft 8 oz
------- = -------
x 48 oz (note that 3 lb = 48 oz)
Then 480 = 8x, and x = 60 ft (answer)
X² + 5x - 14 = 0
(x-2)(x+7) = 0
x - 2 = 0
x + 7 = 0
x = 2
x = -7
Your answer is B.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Next question.
2x² - 4x - 6 = 0
a = 2
b = -4
c = -6
And is D.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Next question
If the discriminant is positive, then there will be 2 solutions.
Your answer is C.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Next question
Plugging in the equation into the quadratic formula should get you answer choice A.