Mathematics, 19.07.2019 20:00 chameleonsarelife

The function, f(x), describes the height of a dome on top of a building, where f(x) is the height from the base of the dome and x is the horizontal distance from where the dome meets the building. the domain of the function is __ ≤ x ≤ i will give brainiest if !

Answers: 2

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Answer from: mmaglaya1

0 ≤ x ≤ 10

Step-by-step explanation:

We cannot take the square root of a negative number. This means we cannot use negative numbers in this equation; this means the lower end is 0.

We can only use x values until the value of the negative square is greater than the value of 10 times the x.

10(1) = 10, which is greater than -(1(1)) = -1.

10(2) = 20, which is greater than -(2(2)) = -4.

10(3) = 30, which is greater than -(3(3)) = -9.

10(4) = 40, which is greater than -(4(4)) = -16.

10(5) = 50, which is greater than -(5(5)) = -25.

10(6) = 60, which is greater than -(6(6)) = -36.

10(7) = 70, which is greater than -(7(7)) = -49.

10(8) = 80, which is greater than -(8(8)) = -64.

10(9) = 90, which is greater than -(9(9)) = -81.

10(10) = 100, which is equal to -(10(10)) = -100. This means this is the cutoff point for this function.

Answer from: haileysolis5

The height of the dome of the building is given by

$f(x)=2\sqrt{-x^2+10x}$ . The quantity in the square root should be greater than or equal to 0. We need

$-x^2+10x\geq 0\\ x(10-x)\geq 0\\ 0\leq x\leq 10$ .

So the domain is $0\leq x\leq 10$

Answer from: Quest

answer:

payment just for service

→

87.12

payment for service including tax

→

94.09

explanation:

service only with 20% tip

→

72.6

(

100

)

87.12

in the opening of the question the word 'service' is associated only with the pretax value.

the closing part of the question asks: how much did she pay for the

service

−−−−−−

so technically the answer is

→

72.6

(

100

)

87.12

however, the intention of the question provider may have been that your answer is to be

87.12

(

100

)

94.09

to 2 decimal places.

payment just for service

→

87.12

payment for service including tax

→

94.09

tony b

mar 21, 2017

answer:

trying to explain it another way

explanation:

service charge

→

72.60

20% tip

100

72.60

14.52

−−−−−−

←

add

87.12

tax

100

87.12

6.97

−−−−−

←

add

94.09

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The function, f(x), describes the height of a dome on top of a building, where f(x) is the height fr...

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