Answer:
672 phone calls is the correct answer
<h3>
Answer:</h3>
x² -6x = -13 ⇒ x ∈ {3-2i, 2+2i}
<h3>
Step-by-step explanation:</h3>
To make a=1, divide the equation by the coefficient of x², which is 8.
... x² -6x = -13 . . . . . . your blanks are filled with -6 and -13
Now, to complete the square, add the square of half the x-coefficient:
... (-6/2)² = 9.
... x² -6x +9 = -4 . . . 9 added to both sides
... (x -3)² = -4 . . . . . rewrite as a square
... x -3 = ±2i . . . . . . take the square root
... x = 3 ±2i . . . . . . . add 3
The solutions are the complex numbers x = 3 ±2i.
Answer:
she will use 24 nails
Step-by-step explanation:
Brainliest plz
17 * 0 + -2.
Now we rewrite the equation and make it 17 * 0 - 2 and u get -2.
6400 meters_>3500 + 230t
It's greater than or equal to because the minimum is 6400 so the altitude can be higher and the pilot is gaining 230 meters per minute which is 230t and he started at 3500
