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iragen [17]
3 years ago
15

Help....!! I need to solve this simultaneous equation y=x-2 and y=3x+5 With working out if possible please....

Mathematics
1 answer:
Blababa [14]3 years ago
6 0

Step-by-step explanation:

Y= x - 2. Y = 3x + 5

Putting value of y

x - 2 = 3x + 5

-2 - 5 = 3x - x

-7 = 2x

-7/2 = x

Putting value of x

Y = 3(-7/2) + 5

Y = - 10.5 + 5

Y = - 5.5

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Answer: D. 4x√2x . . . . .
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What is the equation in point-slope form of the line passing through (−2, 0) and (2, 8)? (1 point) y = 2(x + 2) y = 2(x − 2) y =
Sonja [21]

Answer: y=2(x+2)

Step-by-step explanation:

The slope of the line is

y=\frac{8-0}{2-(-2)}=\frac{8}{4}=2

Using the point (-2, 0) to substitute into point-slope form, we get the equation to be \boxed{y=2(x+2)}

8 0
2 years ago
F(x)=x^2. What is g(x)?
Advocard [28]

Answer:

B

Step-by-step explanation:

g(x)=1/2 x^2  take point (2,2) and input the values in the equation

for value of x

g(x)=1/2 (2)^2= 1/2 *4

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3 0
4 years ago
Considere a equação 5x + 5 = 4x - 2. a) substituindo x por -7 e efetuando os cálculos, mostre que -7 é a solução da equação. b)
DiKsa [7]

Responda:

Explicação passo a passo:

Dê = n a equação 5x + 5 = 4x - 2, para mostrar que x = -7 é a solução, as seguintes etapas devem ser seguidas.

Etapa 1: Subtraia 5 de ambos os lados da equação

5x + 5 - 5 = 4x - 2 - 5

5x = 4x - 7

Etapa 2: Subtraia 4x de ambos os lados da equação resultante

5x = 4x - 7

5x - 4x = 4x - 7 - 4x

x = -7

Isso prova que a solução é x = -7

b) Para mostrar que 5 não é a solução, substituiremos x = 5 em ambos os lados da equação e verificaremos se são iguais ou não. Se eles não são iguais, significa que 5 não é uma solução.

Para o lado direito da equação, ou seja, 5x + 5

f (5) = 5 (5) + 5

f (5) = 25 + 5

f (5) = 30

Para o lado esquerdo da equação, ou seja, 4x-2

f (5) = 4 (5) - 2

f (5) = 20-2

f (5) = 18

Como os dois valores não são os mesmos, 30\neq 18 ou seja, isso mostra que 5 não é uma solução

5 0
3 years ago
If two hundred fifty-two is dividend and six is quotient.what is the divisor
Ksenya-84 [330]
⓵ Let’s go over the terminology and the equation that goes with it :

A “dividend” is divided by the “divisor” and is equal to the “quotient”.

So : Dividend ÷ Divisor = Quotient

⓶ Now that we know this, replace the words in the equation with their value that is given :

252 ÷ Divisor = 6

Let’s just say for the sake of this problem that × is the Divisor.

252 ÷ × = 6

⓷ Now that we have our equation, all you have to do is solve it!

→ 252 ÷ × = 6

→ 252 ÷ 6 = ×

→ 42 = ×

↠ Answer : The divisor is 42.

There you go! I really hope this helped, if there’s anything just let me know! ☻
6 0
4 years ago
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