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lara31 [8.8K]
2 years ago
13

Explain the impact of planes and pulleys on work and force. Select the facts that are accurate.

Mathematics
1 answer:
meriva2 years ago
6 0

Answer:

a b

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
dedylja [7]

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.

Since, in total she works for 25 hours a week so the function to represent the number of hours she work to create signs can be given by:

f(x)=(25-x)

C. If 's' represents the number of hours that Anna works creating signs, we need to create a function g(s) that represents her earning creating signs.

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

g(s)=9s

D. We need to finf a composite function g(f(x)), to find the desired function we need to plug value of f(x) in the function g(s):

g(f(x))=9s=9(f(x))=9(25-x)=225-9x

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

where we must keep in mind that 'x' represents the number of hours she spent working as a barista in a 'week'.

5 0
3 years ago
Read 2 more answers
Which is a factor of each term of the polynomial?<br><br> (3d2 – 10d)
nydimaria [60]

Answer:

d(3d-10)

Step-by-step explanation:

You pull out the common factor of d from both terms, and group the remaining terms inside a parenthesis.

8 0
2 years ago
Part A: Larry earned $11 walking his neighbors' dogs on Saturday. He earned some extra money on Sunday doing the same thing. Wri
djyliett [7]
So for part a the answer with be 11/6
Why 6 because count the weeks that wil be 6 so Monday Tuesday Wednesday thursaday and Friday then comes Saturday
3 0
3 years ago
Read 2 more answers
Identify the independent and dependent variables in the following situation Julie notices that her plant grows one inch for ever
LUCKY_DIMON [66]

Answer:

Independent variable: amount of water

Dependent variable: growth of the plant

Step-by-step explanation:

In the statement "Julie notices that her plant grows one inch for every liter of water that it receives" it is implied that the growth of the plant is related proportionally to the amount of water it receives.

We know the amount of growth in function of the amount of water

The dependant variable, the result, is the growth of the plant.

Then, the independent variable is the amount of water, as it is the input to calculate the amount of growth.

4 0
3 years ago
What is 3X minus 6 and how did you get there??? A. 7 B. 9 C. 15 D. 18
Brilliant_brown [7]
Multiply 3x by -6, it gives you -18 so I'm going to say D
7 0
3 years ago
Read 2 more answers
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