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HACTEHA [7]
3 years ago
14

Aaliyah needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer fo

r 3 hours and charged her $66 for parts. The total was $441. Write and solve an equation which can be used to determine x, the cost of the labor per hour.
Equation:
Answer: I =​
Mathematics
1 answer:
iren2701 [21]3 years ago
8 0

Answer:

you should try adding then subtractung the total to the part

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Find the value of B of the shape
Dahasolnce [82]

Answer:

34

Step-by-step explanation:

All angles of a triangle add up to 180 degrees so you would subtract from 180 with the angles you already have to get your answer. 180 - 115 - 31 = B which is 34.

7 0
3 years ago
Which statement best describes how to determine whether f(x) = x3 + 5x + 1 is an even function?
balandron [24]

<u>The right answer is:</u> Determine whether (-x)^3+5(-x)+1 is equivalent to x^3+5x+1


A function is said to be even if its graph is symmetric with respect to the y-axis. That is:

A \ function \ y=f(x) \ is \ \mathbf{even} \ if, \ for \ each \ x \ in \ the \ domain \ of \  f:\\ \\ f(-x)=f(x)


According to this definition, the statement that best describes if the function:

f(x)=x^3+5x+1

is even, is:


Determine whether (-x)^3+5(-x)+1 is equivalent to x^3+5x+1


By doing this, we have:

f(-x)=(-x)^3+5(-x)+1 \\ \\ \therefore \ f(-x)=-x^3-5x+1


As you can see:

f(x) \neq f(-x)


Conclusion:<em> </em><em>The function is not even.</em>

7 0
4 years ago
Read 2 more answers
Which of the following expressions demonstrates the distributive property?
rodikova [14]

Answer:

3(-8 + 1) = 3(-8) + 3(1)

8 0
3 years ago
Pls help extra points and mark brainlist easy reading
dmitriy555 [2]

Answer: Its they second or last one but the second one sound more clear

Step-by-step explanation:

8 0
3 years ago
A rectangular room measures 20 m long and 15 m wide. Work out the measurer for a scale drawing of the room using a scale of 1 cm
jonny [76]
20 / 2 = 10
15 / 2 = 7.5

10cm by 7.5cm

Hope this helps
8 0
3 years ago
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