Marcella had $15. she bought some books. after

Ответ:

soleydyperez

02.01.2022

B.) 15 - A = 6

Step-by-step explanation:

The equation shows that Marcella had $15 then bought something (A), and now she has 6 dollars left.

15 - A = 6

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tintlemax6256

22.04.2020

x² + 3x + 7 = 0 [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

$x = \frac{-b+/-\sqrt{b^2-4ac} }{2a}$ (+/- is this ±)

plug in the numbers into the variables

$x = \frac{-3+/-\sqrt{3^2-4(1)(7)} }{2(1)}$

$x=\frac{-3+/-\sqrt{9-28} }{2}$

$x=\frac{-3+/-\sqrt{-19} }{2}$

your answer is a

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