3 years ago

Once you have the value of a variable, how can you check that it is correct?

1 answer:

5 0

Answer:Once you have the value of a variable you can check by plugging it into the equation and seeing if it’s right or not

Step-by-step explanation:

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-7+ 3x-2(3x+4)= 5(2x-3) + 4 (3x - 1) - 4.

Harman [31]

Answer:

$- 7 + 3x - 2(3x + 4) = 5(2x - 3) + 4(3x - 1) - 4 \\ - 7 + 3x - 6x - 8 = 10x - 15 + 12x - 4 - 4 \\ - 3x - 15 = 22x - 15 - 8 \\ 25x = 8 \\ x = \frac{8}{25}$

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2 years ago

After receiving a discount of 7.5% on its bulk order of notebooks, John's Office Supply pays $7400. What was the price of the or

Zolol [24]

X-0.075x=7400
Solve for x
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3 years ago

3^2 - 2x + 4 and g(x) = 5x^2 + 6x - 8 find f-g(x)

sveta [45]

Answer:

For the given functions f(x) and g(x) $(f-g)(x) = -2x^{2} - 8x +12$

Step-by-step explanation:

Here, the given function are:

$f(x) = 3x^{2} - 2x+ 4\\g(x) = 5x^{2} + 6x -8$

Now, simplifying for (f-g)(x) = f(x) - g(x):

$f(x) - g(x) = (3x^{2} - 2x+ 4) - (5x^{2} + 6x -8)$

$= 3x^{2} - 2x+ 4- 5x^{2} - 6x +8$

Doing operation on LIKE TERMS, we get

f(x) - g(x) = $( 3x^{2}- 5x^{2}) + (-2x - 6x) +( 4 +8) = -2x^{2} - 8x + 12$

Hence, for the given functions f(x) and g(x) $(f-g)(x) = -2x^{2} - 8x +12$

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3 years ago

Is each number rational or irrational?

eimsori [14]

1. Irrational
2. Irrational
3. Rational
4. Rational

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3 years ago

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What is the distance of 1.5 to -2 on a number line and how can you show it

user100 [1]

Answer:

The distance is 3.5

Step-by-step explanation:

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3 years ago