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lidiya [134]
3 years ago
11

Lin’s father is paying for a $20 meal. He has a 15% off coupon for the meal. After the discount, a 7% sales tax is applied. He d

oes NOT add tip
Mathematics
1 answer:
borishaifa [10]3 years ago
7 0
Answer: $18.19

step by step explanation:

first you must find the amount of money that lins father gets off on the coupon by using the equation 20•0.15=3 meaning that lin’s father gets 3 dollars off

next you find the pre-tax total which in this case would be by using the equation 20-3=17 so the pre-tax total is 17 dollars

then you find the percentage of the tax that you have to add on to the pre-tax total which would be using the equation 17•0.07 and that equals 1.19 dollars in tax

finally, you add the pre-tax total with the sales tax by adding the two (17+1.19) to get a total of 18.19 dollars or $18.18
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We develop the ratio between the number of milliliters present in 1 tablespoon and that is,
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We let x be the number of millileter in 3 tbsp and it can be determined through the equation below.
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3 years ago
The domain of f(x) is the set of all real values except 7, and the domain of g(x) is the set of all real values except -3. Which
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Answer:

The option is: <em>all real values except x = 7 and the x for which f(x) = -3</em>

Step-by-step explanation:

As the domain of f(x) is the set of all real values except 7. So it can be written as follows:

              Domain of f(x) = { x ∈ R | x ≠ 7}

As the domain of g(x) is the set of all real values except -3. So it can be written as follows:

              Domain of g(x) = { x ∈ R | x ≠ -3}

It is a common rule that the domain of a composite function (gºf)(x) will be the set of those input x in the domain of f for which f(x) is in the domain of g.

So, the option is: <em>all real values except x = 7 and the x for which f(x) = -3</em>

Keywords:  domain, composite function

Learn more domain and composite functions from brainly.com/question/2073574

#LearnwithBrainly

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Answer:

Exponential

Step-by-step explanation:

Since the x is to the power of 4, a small increase in x is amplified when it becomes the output of y.

Edit: Here is a screenshot of the graph

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Step-by-step explanation:

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We are given with the expression above such that the required in the problem is the quotient of the two polynomials. We just have to try each of the polynomials given as option to 3x2 + 2 to give the equation in the numerator. The answer is B.) 2x^2 – 5x – 2 
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