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2 years ago

-4x+3x+2x+x=17 x-4x+3x+2x=13 2x+x-4x+3x=9 3x+2x+x-4x=1

Mathematics

1 answer:

ella [17]2 years ago

3 0

Answer:

x= 8,5

x=0

X= 2

x= -2

Step-by-step explanation:

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Please help me with this problem..........

vaieri [72.5K]

Answer:

y= 2/3x + 3

Step-by-step explanation: I suggest to look up slope intercept calculator it really helps.

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3 years ago

Read 2 more answers

Write a quadratic equation given the roots -1/3 and 5, show your work

Travka [436]

$\boxed{(x - a)(x - b) = 0}$

The equation above is the intercept form. Both a-term and b-term are the roots of equation.

$x = - \frac{1}{3} \\ x = 5$

These are the roots of equation. Therefore we substitute a = - 1/3 and b = 5 in the equation.

$(x + \frac{1}{3} )(x - 5) = 0$

Here we can convert the expression x+1/3 to this.

$x + \frac{1}{3} = 0 \\ 3x + 1 = 0$

Rewrite the equation.

$(3x + 1)(x - 5) = 0$

Simplify by multiplying both expressions.

$3 {x}^{2} - 15x + x - 5 = 0 \\ 3 {x}^{2} - 14x - 5 = 0$

Answer Check

Substitute the given roots in the equation.

$3 {(5)}^{2} - 14(5) - 5 = 0 \\ 75 - 70 - 5 = 0 \\ 75 - 75 = 0 \\ 0 = 0$

$3( - \frac{1}{3} )^{2} - 14( - \frac{1}{3}) - 5 = 0 \\ 3( \frac{1}{9} ) + \frac{14}{3} - 5 = 0 \\ \frac{1}{3} + \frac{14}{3} - \frac{15}{3} = 0 \\ \frac{15}{3} - \frac{15}{3} = 0 \\ 0 = 0$

The equation is true for both roots.

Answer

$\large \boxed {3 {x}^{2} - 14x - 5 = 0}$

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2 years ago

Solve F(x) for the given domain. F(x) = x ^2 + 3x - 2 F(3) = 13 16 40

olchik [2.2K]

F(3) = 16, you simply plug in 3 for x to find the answer.

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3 years ago

What is the value of x in following system? y=3x-5 6x+3y=15

Simora [160]

I think x = 2, but im sorry if thats wrong

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3 years ago

Determine which measurement is greater. 7 lb, 4 kg, 2 kg, 5 lb

Ainat [17]

Answer:

4kg

Step-by-step explanation:all the other ones r lighter

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3 years ago