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Delvig [45]
3 years ago
9

Please I need help ASAP!!!

Mathematics
1 answer:
lesantik [10]3 years ago
4 0

Answer:

First answer.

Step-by-step explanation:

This is called the Arc length, here is the formula:

Arc length = (angle/360)*(2Pi*radius)

So,

(45/360)*(2*3.14*4)

= 3.14

SO Pi !!!!!

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Answer:

A= 163

Step-by-step explanation:

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. Anna gets paid $8.75/hour working as a barista at Coffee Break. Her boss pays her
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Explanation:

Anna gets paid $8.75/hour working as a barista.

She gets paid $9.00/hour for creating weekly advertisement signs.

In total she works 25 hours a week.

Let 'x' represent the number of hours that she works as a barista, then 25-x would represent the number of hours she works to create signs.

A. We need to write a function h(x) that represents the amount of money that Anna earns working as a barista.

Since she is earning $8.75 per hour and she works as a barista for 'x' hours a week so the function is:

h(x)=8.75\times x=8.75x

h(x)=8.75x

B. We need to write a function f(x) to represent the hours Anna works creating the signs.

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f(x)=(25-x)

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So the number of hours Anna works creating signs for the coffee break is s, she gets paid $9.00 an hour for creating signs, so:

g(s)=9\times s=9s

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g(f(x))=225-9x

The composite function g(f(x)) represents Anna's earnings while working just to create signs for the Coffee break.

E. To represent Anna's total earnings the functions that can be combined are h(x) and g(f(x)) because h(x) represents Anna's earnings while working as a barista and g(f(x)) represents Anna's earnings while she creates signs for the coffee break.

The function to represent Anna's total earnings can be given as:

T(x)=h(x)+g(f(x))=8.50x+225-9x

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