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ankoles [38]
3 years ago
7

Suppose a heat exchanger costs $1200 and reduces the heating bill by $200 per year what is the payback time?

Mathematics
1 answer:
natima [27]3 years ago
8 0

6 months is the answer 200×6=1200

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In a transformation each point in the object is mapped to another point in the image. The following are the four types of transf
harina [27]
The answer to your question is true
6 0
3 years ago
Determine whether each pair of functions are inverse functions. 1) f(x) = 8x – 10, g(x) = (x + 10) 2) f(x) = 4x + 5, g(x) = 4x –
Y_Kistochka [10]

Answer:

Step-by-step explanation:

To find the inverse of a function you take it in y=f(x) form, switch x and y and then solve for the new y.

So I'll do the first one.

f(x) = 8x-10

y=8x-10 Now switch x and y

x = 8y-10 Now solve for y.  

x+10=8y

(x+10)/8 = y

g(x) is not that, so it is not the inverse.  Can you figure out the second one?

6 0
3 years ago
Read 2 more answers
The x-intercept of the line whose equation is 2x - 3y = 6 is
kati45 [8]
2x - 3y = 6
To find the x-intercept, plug zero in for y and solve.
2x - 3(0) = 6
2x = 6
divide both sides by 2
x = 3
The ordered pair is (3,0)
6 0
3 years ago
Read 2 more answers
Is the expression below a perfect square trinomial or the difference of two squares?
DanielleElmas [232]

The expression shown below is a difference of two squares.

<h3>Is a given expression a perfect square trinomial or a difference of two squares?</h3>

In this problem we have an algebraic expression that has to be checked by algebraic procedures. The complete procedure is shown below:

(x² + 8 · x + 16) · (x² - 8 · x + 16)                  Given

(x + 4)² · (x - 4)²                                           Perfect square trinomial

[(x + 4) · (x - 4)] · [(x + 4) · (x - 4)]                 Definition of power / Associative and commutative property

(x² - 16)²                                                      Difference of squares / Definition of power / Result

The expression shown below is a difference of two squares.

To learn more on differences of squares: brainly.com/question/11801811

#SPJ1

7 0
1 year ago
Q2: Explain the difference between the solution to an equation and the solution to an inequality. (dba 3
CaHeK987 [17]
The solution(s) of a system of linear equations give points of intersection of specific lines or planes.

The solution(s) of a system of linear inequalities give areas of intersection wherein any specific pair of points or lines are solutions.

PROCESS-WISE there are little differences between solving systems. However, multiplication and division by negatives reverses the signs in inequalities. 
 
4 0
3 years ago
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