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solong [7]
3 years ago
8

Question 8...................

Mathematics
1 answer:
miv72 [106K]3 years ago
3 0

Answer:

(a) 53%

(b) 25%

Step-by-step explanation:

There are 51 families who are Not a Homeowner and who own No car or one car, and there are 108 families who are Not a Homeowner and who own Two or more cars. You can add these two numbers together to find how many families are <u>only</u> not a Homeowner - no matter how many cars they own the question doesn't ask that. You do the same thing for question b; you add up 24 and 51 to get 75 total families who have no car or one car. However, despite all that I've said, the question asks for a percentage. So you have 159 families for question a. Just divide 159 by 300 and that'll give the decimal that you need to convert into a percent. It'll be 53%. And for question b, you have 75 families out of 300 who have no car or one car. So do 75 divided by 300 and you'll get 25%.

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7n - 4 (8n+4) = 159
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Answer:

n = -7

Step-by-step explanation:

Use distributive property:

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Use the functions f(x)=7x3−3x2−x+14 f x = 7 x 3 - 3 x 2 - x + 14 and g(x)=2x3+2x+5 g x = 2 x 3 + 2 x + 5 as examples to show tha
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Answer:

<h3>The given set of polynomials f(x) and g(x) are closed under subtraction.</h3>

Step-by-step explanation:

Given that the functions f ad g are defined by

f(x)=7x^3-3x^2-x+14 and g(x)=2x^3+2x+5 respectively.

<h3>To  show that the set of polynomials is closed under subtraction :</h3>

Now subtract the given polynomials

f(x)-g(x)=(f-g)(x)

=7x^3-3x^2-x+14-(2x^3+2x+5)

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  • When subtracting the polynomials the variables and their exponents remains same only variation in their coefficients.
<h3>Hence the given polynomials f(x) and g(x) are closed under subtraction.</h3>

∴ f(x)-g(x)=5x^3-3x^2-3x+9 are closed under subtraction,

Hence showed.

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