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DerKrebs [107]
2 years ago
5

What is the sum of F(X) and G(x) if F(x) = 8x ^ 3 + 7x ^ 2 - 11x + 20 and G(x) = - 5x ^ 3 - 4x ^ 2 - 17

Mathematics
1 answer:
mr_godi [17]2 years ago
6 0

Answer:

3x^{3}+3x^{2}-11x+3

Step-by-step explanation:

f(x) + g(x) = 8x^{3}+7x^{2}-11x+20-5x^{3}-4x^{2}-17

To make this equation a little less long, we combine like terms

(8-5)x^{3}+(7-4)x^{2}-11x+(20-17)

or just

3x^{3}+3x^{2}-11x+3

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The sum of three times a number and seven is greater than twice the number minus four
swat32
I'm guessing you want this written as an equation, so here it is.
3n+7>2(n-4)
These can be really tricky at times, so I suggest looking for "clues" in the wording, such as add, subtract, and other things. Also look for what numbers are "paired" together, like in parentheses. Hope that this helps!
4 0
3 years ago
Convert to slope intercept form.<br><br> y + 6 = 4/5 (x + 3)
xenn [34]
X = 5y + 30/4 - 3 is the answer.
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3 years ago
Read 2 more answers
In a survey of 300 house wires. It was discovered
ruslelena [56]

Answer:

46 housewives read all three magazines.

Step-by-step explanation:

Given:

        n(A) = 150

        n(B) = 200

        n(C) = 156

        n(A∩B) = 48

        n(B∩C) = 60

        n(A∩C) = 52

         n(A∪B∪C) = 300

so we know the relation as:

  n(A∪B∪C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C) + n(A∩B∩C)

∴ n(A∩B∩C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C)  - n(A∪B∪C)

                    = 150 + 200+ 156 - 48 - 60 - 52 - 300

                   = 46

Hence the number of housewives that had read all three magazine is 46.

8 0
3 years ago
Given f(x) = ab-x + c. How would increasing the value of a change the graph?
alexgriva [62]

Answer: answer is c.

Step-by-step explanation:

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2 years ago
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8x+16=14x<br><br><br>checking my awnser
Firdavs [7]

8x + 16 = 14x

To solve this equation, move everything containing the variable you want to solve for on one side of the equation and everything else to the other side of the equation.

Let's start by subtracting 8x from both sides to have the variable x all on the right side of the equation. Once you subtract 8x from both sides, your equation will now look like this:

16 = 6x

To solve for the variable x, you want to divide both sides of the equation by 6 to isolate x and therefore find your answer. Divide both sides by 6 and your equation should look like this:

16/6 = x

Simplifying 16/6 into a mixed number ⇒ 2 2/3

Your answer is x = 16/6 or 2 2/3.

8 0
3 years ago
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