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2 years ago

Solve by Substitution. 3x+2y=-4 y=4x-2

Mathematics

2 answers:

qwelly [4]2 years ago

8 0

x=0

y=-2

You'd put them in an ordered point, so (0,-2).

morpeh [17]2 years ago

8 0

X=8/11 Y= 9/10

There are your answers

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Answer: The answer is D. .625

Step-by-step explanation: It terminates, meaning that it doesn't repeat itself

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2 years ago

What would make this a parallelogram

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3 years ago

En un triángulo rectángulo A es un ángulo agudo y Sen A = 4/5 ¿Cuál será el valor de Tan A?

Nonamiya [84]

Answer:

$\displaystyle \tan A=\frac{4}{3}$

Step-by-step explanation:

Funciones Trigonométricas

La identidad principal en trigonometría es:

$sen^2A+cos^2A=1$

Si sabemos que A es un ángulo agudo (que mide menos de 90°), su seno y coseno son positivos.

Dado que Sen A = 4/5, calculamos el coseno:

$cos^2A=1-sen^2A$

Sustituyendo:

$\displaystyle cos^2A=1-\left(\frac{4}{5}\right)^2$

$\displaystyle cos^2A=1-\frac{16}{25}$

$\displaystyle cos^2A=\frac{25-16}{25}$

$\displaystyle cos^2A=\frac{9}{25}$

Tomando raíz cuadrada:

$\displaystyle cos\ A=\sqrt{\frac{9}{25}}=\frac{3}{5}$

La tangente se define como:

$\displaystyle \tan A=\frac{sen\ A}{cos\ A}$

Substituyendo:

$\displaystyle \tan A=\frac{\frac{4}{5}}{\frac{3}{5}}$

$\displaystyle \tan A=\frac{4}{3}$

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2 years ago

Please need help thank you

telo118 [61]

Answer:

2, 3/4 and 1

Step-by-step explanation:

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Step-by-step explanation:

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