3 years ago

Solve the following equation algebraically 3x 4 – 1 = 1874

Mathematics

1 answer:

tiny-mole [99]3 years ago

7 0

The answer is x= 5 or x= -5

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F f(x) = 4 – x2 and g(x) = 6x, which expression is equivalent to (g – f)(3)?

Oliga [24]

<h2>Subtracting Functions</h2><h3>Answer:</h3>

$6(3) -4 +3^2$

<h3>Step-by-step explanation:</h3>

Given:

$f(x) = 4 -x^2$

$g(x) = 6x$

Before we find the expression of $(g -f)(3)$ , we must first know how $(g -f)(x)$ is defined.

$(g -f)(x) = g(x) -f(x) \\ (g -f)(x) = 6x -(4 -x^2) \\ (g -f)(x) = 6x +x^2 -4 \\ (g -f)(x) = x^2 +6x -4$

Now we can find $(g -f)(x)$ .

$(g -f)(3) = (3)^2 +6(3) -4$

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3 years ago

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Delvig [45]

Answer:

x=36

Step-by-step explanation:

2x+2x+70+78+68=360

4x+216=360

4x=360-216

4x=144

x=144/4=36

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2 years ago

a sweater that originally cost $40 is on sale for 10 percent off. what is the amount of the discount?

Andrej [43]

The retail price is 100% of the cost, and when 10% is taken off, that is the new price of the sweater.
100%-10%=90%
Then you convert the percentage to decimal and multiply the decimal with the retail price.

90%=0.9
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The new price of the sweater is $36.

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