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ladessa [460]
3 years ago
11

9x-7x+3y slove this equation​

Mathematics
2 answers:
andreev551 [17]3 years ago
7 0

Answer: 2x+3y

Step-by-step explanation:

The equasion can not be "solved" because

-There is more than 1 variable

-There is no answer (We dont know what the equasion is equal to)

1. Add like terms

9x + (-7x) = 2x

2x +3y

slega [8]3 years ago
5 0

Answer:

2x+3y is the answer

Step-by-step explanation:

you subtracy 7x from 9x then you have the left over 3y so that would give you the answer 2x+3y

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Lacey deposited $30 in a savings account earning 10% interest, compounded annually.
Brut [27]

Answer:

$9.93

Step-by-step explanation:

Lacey would earn $9.93 in interest

6 0
3 years ago
dos aviones parten de una ciudad con direcciones S32°E y E57°N¿ cuál es el angulo que forma sus direcciones?​
Elan Coil [88]

Answer:

El ángulo formado entre las dos direcciones es aproximadamente 115º.

Step-by-step explanation:

Las direcciones dadas en el enunciado significan lo siguiente:

S32ºE - <em>32º al este del sur.</em>

E57ºN - <em>57º al norte del este.</em>

Vectorialmente hablando, cada dirección es la siguiente:

S32ºE

A(x,y) = (\sin 32^{\circ}, -\cos 32^{\circ})

A(x,y) = (0.530, -0.848)

E57ºN

B(x,y) = (\cos 57^{\circ},\sin 57^{\circ})

B(x,y) = (0.545, 0.839)

El ángulo formado entre los dos vectores unitarios (\theta), medido en grado sexagesimales, puede determinarse mediante la siguiente ecuación vectorial:

\theta = \cos^{-1} \frac{A\,\bullet \,B}{\|A\|\cdot \|B\|}

Donde:

\|A\| - Norma de A(x,y).

\|B\| - Norma de B(x,y).

Si sabemos que A(x,y) = (0.530, -0.848), B(x,y) = (0.545, 0.839), \|A\| = 1 y \|B\| = 1, entonces el ángulo formado entre los dos vectores es:

\theta = \cos^{-1} \frac{(0.530)\cdot (0.545)+(-0.848)\cdot (0.839)}{(1)\cdot (1)}

\theta \approx 115^{\circ}

El ángulo formado entre las dos direcciones es aproximadamente 115º.

4 0
3 years ago
The length of a rectangle measures 3b + 1 and the width measures b - 3. What is the area of this rectangle?
jek_recluse [69]
B^2 - 8/3b - 1

hope you understand
7 0
3 years ago
Use the rational root theorem to list all possible rational roots for each equation: x^2+x-2=0
VARVARA [1.3K]
The answer is x=1,-2
3 0
3 years ago
Read 2 more answers
I need help with this real quick guys!
geniusboy [140]
The answer is 17/20.
You are welcome

5 0
3 years ago
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