Mrs. Santos is buying binders for the students in her class. She determined that 15 binders would cost $22.50.

What are the ordered pairs of the solutions for this system of equations? y = -x2 + 2 y = x

sergiy2304 [10]

Answer:

The solutions of this system of equations are (-2, -2) and (1, 1).

Step-by-step explanation:

Let be the following system of equations:

$y = -x^{2}+2$ (1)

$y = x$ (2)

(2) in (1):

$y = -y^{2}+2$

$y^{2}+y-2 = 0$

This polynomial can be solved analytically by Quadratic Formula:

$y_{1} = 1$ , $y_{2} = -2$

Hence, the solutions of this system of equations are (-2, -2) and (1, 1).

5 0

3 years ago

Tenemos 2 triangulos donde sus angulos mieden 46 y 66 respectivamente, y el lado adyacente a ellos mide 15cm, el criterio de con

HACTEHA [7]

Answer:

Puesto que se conocen dos ángulos seguidos y un lado adyacente tanto en uno como en otro triángulo, se debe emplear el criterio Ángulo-Lado-Ángulo (ALA) para determinar que los triángulos citados en el enunciado son congruentes.

Step-by-step explanation:

Puesto que se conocen dos ángulos seguidos y un lado adyacente tanto en uno como en otro triángulo, se debe emplear el criterio Ángulo-Lado-Ángulo (ALA) para determinar que los triángulos citados en el enunciado son congruentes.

5 0

3 years ago

Which of the following fractions are between 3/7 and 4/7?

Setler [38]

3.5/7 is the answer to your question

4 0

3 years ago

Read 2 more answers

A spinner has 12 equal sectors with different letters for each sector Hamlet spins the spinner 5 times, and it stops at the lett

rodikova [14]

The spinner has no memory. The probability of a 'B' is 1/12 or 8-1/3%. The first time, the 10th time, and the millionth time. No matter what has happened before.

8 0

4 years ago

I need the answers to this question

pshichka [43]

I am sorry I am not in that level yet

4 0

3 years ago