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3 years ago

12

Please explain to me how to solve this problem and what would be the correct answer answer asap!!!

1 answer:

hodyreva [135]3 years ago

5 0

Given
f(x)= -3x - 5
g(x)= 4x - 2

Find
(f - g)(x)
substitute the f and g values in (f - g)

(f - g)(x)= -3x - 5 - (4x - 2)
change the signs in parentheses because there is a negative sign in front of the parentheses

(f - g)(x)= -3x - 5 - 4x + 2
combine like terms

(f - g)(x)= -7x - 3

ANSWER: (f - g)(x)= -7x - 3

Hope this helps! :)

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Answer:

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3 years ago

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The area of a rectangle is 20 square inches. If the length is 4 inches less than 6 times the width, then find the dimensions of

Korolek [52]

Answer:

dimensions are 2.19 inches by 9.14 inches

Step-by-step explanation:

Here, we are interested in knowing the dimensions of the rectangle

Now, let the width of the rectangle be x, from the question, we can write;

6x-4 as the length

Area of rectangle = l * b

x(6x-4) = 20

6x^2 - 4x = 20

divide through by 2

3x^2-2x = 10

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using quadratic formula;

x = -b ± √(b^2 - 4ac)/2a

From the quadratic equation, a = 3, b = -2 and c = -10

substituting these values, we have

x = 2 ± √(-2)^2 -4(3)(-10))/6

x = 2 ± √(124)/6

x = 2 + √(124)/6 or 2 - √(124)/6

x = (2+11.14)/6 or (2-11.14)/6

x = 2.19 or -1.52

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3 years ago

Which property does the equation illustrate (x+5)+9=x+(5+9)

kiruha [24]

The Associative Property of Addition.

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3 years ago

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SashulF [63]

Answer:

$n=-6\text{ or } n=6$

Step-by-step explanation:

So we have the equation:

$-\frac{1}{2}n^2+18=0$

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$-\frac{1}{2}n^2=-18$

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$n=\pm\sqrt{36}$

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So, the solutions are -6 or 6.

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3 years ago

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liubo4ka [24]

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Step-by-step explanation:

I calculated to find the answer

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3 years ago