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svetlana [45]
3 years ago
10

betty wants to install new carpet in her room the room is 15ft and the width 15ft. if the cost of the carpet is £8per square foo

t ,what will be the total cost to carpet betty living room
Mathematics
1 answer:
notka56 [123]3 years ago
4 0

The dimensions of living room are 15 feet by 15 feet, so side= 15 feet

since the carpet is square,

area of square = side * side

area of carpet =15*15 =225 feet square.

Cost of 1 square foot of carpet = £8

Cost of 225 square feet of carpet = £8 *225 =£1800

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Find the domain of where f(x) = x + 10 and g(x)=x².
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The domain of the function f(x)=x+10 is (-∞, ∞) and for the function g(x)=x² is (-∞, ∞).

<h3>What is meant by domain?</h3>

If a formula specifies a real function f, it may not be defined for some values of the variable. The natural domain or domain of definition of f is the set of real numbers on which the formula can be evaluated to a real number in this case. A partial function is often referred to just as a function, and its natural domain is referred to simply as its domain.

Given,  f(x) = x + 10

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The domain for the function f(x)=x + 10

So, the domain of f(x)=x+10 is (-∞, ∞)

The domain for the function g(x)=x²

The expression's domain is only real numbers, with the exception of places where it is undefined. Because there is no real number in this scenario, the expression is undefined.

So, the domain of the function g(x)=x² is (-∞, ∞)

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