Answer:
step 1. Halve everything
x^2+ 4x - 0.5 = 0
step 2. Halve the coefficient of x so you can write down an equivalent for x² + 4 (that is, (x + 2)^2 - 4 )
(x + 2)² - 4.5 = 0
step 3. Isolate the squared term:
(x + 2)^2 = 4.5
step 4. Take square roots of both sides, recognising that a square root can be positive or negative:
x + 2 = ±√4.5
step 5. Make x explicitly
x = -2 ±√4.5
And there you are with two solutions.
Step-by-step explanation:
hope this helps if not let me know have a great day
You can multiply both sides of the equation by 12 to remove the fractions.
12(35 - x/4) = 12(x/3)
420 - 12x/4 = 12x/3
420 - 3x = 4x
Add 3x to both sides:
420 = 7x
Divide 7 to both sides:
x = 60
Answer:
132.6 profit
Step-by-step explanation:
13 plus 30 percent
$16.9 times 40
$676
16.9 - 30%
$11.83 times 20
$236.6 plus 676
$912.6 - 13 × 60
$912.6 - $780
132.6 profit
i have no idea about a but
B. LN corresponds to EF
MN corresponds to DF
E corresponds to L
F corresponds to N
