The quadratic formula is $x = \frac{-b \pm \sqrt{b^2 - 4ac} }{2a}$ . With the values from this equation plugged in, it looks like this:

$x = \frac{-12 \pm \sqrt{12^2 - 4(4)(9)} }{2(4)} \\ \\ x = \frac{-12 \pm \sqrt{144 - 144} }{8} \\ \\ x = \frac{-12}{8} \\ \\ x = - \frac{3}{2}$

The solution is x = - 3/2

7 0

3 years ago

Help guys!!!!!!!!!!!!!!!!!!!!!!!

alexandr1967 [171]

Answer:

Step-by-step explanation:

1st step: arrange your numbers in numerical order:

60, 62, 64

2nd step: count how many numbers you have:

3 numbers

3rd step: if odd, divide by 2 and round up to get the position of the median number:

3 / 2 = 1.5 --> 2

4th step: Go to the second number in the numerical order

60, 62, 64

3 0

3 years ago

Read 2 more answers

Write an equation for this situation: The cost of renting a car is $30 per day.

Luba_88 [7]

Cost: $30
x: amount of days
y=30x

8 0

3 years ago