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3 years ago

All you have to do is write the function!

Mathematics

1 answer:

sasho [114]3 years ago

5 0

Answer:

The function that represents the average cost in dollars of saleable software CD is given as follows;

f(x) = 500,020/x + 0.10

Step-by-step explanation:

The given parameters are;

The cost of manufacture of each software CD = $0.10

The development cost to produce the CD = $500,000

The number of CDs that are not sold = The first 200 CDs

The total cost of production. 'C', of the the CD is given as follows;

C = $500,000 + $0.10×200 = $500,020

The function, 'f' for the average cost in dollars of a saleable software CD where 'x' is the number of saleable software CDs is given as follows;

f(x) = (C + 0.10·x)/x = C/x + 0.10

∴ f(x) = 500,020/x + 0.10.

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Solve the following system of equations by substation.

Cerrena [4.2K]

Answer:

C. (-1, 3)

Step-by-step explanation:

Label the 2 equations:

5y= 7x +22 -----(1)

x= -6y +17 -----(2)

Substitute (2) into (1):

5y= 7(-6y +17) +22

5y= -42y +119 +22 (Expand bracket)

5y= -42y +141 (Simplify)

42y +5y= 141 (+42y on both sides)

47y= 141

y= 141 ÷47 (÷47 on both sides)

y= 3

Substitute y= 3 into (2):

x= -6(3) +17

x= -18 +17

x= -1

Thus, the solution is (-1, 3).

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3 years ago

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3 years ago

What’s (-3 , 1) reflected over the x-axis

Oxana [17]

Answer: (-3,-1)

Step-by-step explanation:

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3 years ago

Which Expression Is Equivalent to 486-9+6+3^3•2

ValentinkaMS [17]

486 - 9 + 6 + 3³ · 2 = 477 + 6 + 27 · 2 = 483 + 54 = 537

8 0

3 years ago

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Use FOIL to explain how to find the product of (a + b)(a − b). Then describe a shortcut that you could use to get this product w

andriy [413]

Greetings!

FOIL stands for:

Front
Outside
Inside
Last

This tells which terms to multiply when using the Distributive Property.
(NOTE: Only applicable with 2-term Polynomials)

For Example:
$(a+b)(a-b)$

Multiply the Fronts of both Equations:
$(a*a)$

Multiply the Outsides of both Equations:
$(a*a)+(a*-b)$

Multiply the Insides of both Equations:
$(a*a)+(a*-b)+(b*a)$

Multiply the Lasts of both Equations:
$(a*a)+(a*-b)+(b*a)+(b*-b)$

Simplify.
$=a^2-ab+ba-b^2$

$=a^2-b^2$

Alternative Method (My Prefered Method)
$(a+b)(a-b)=a(a+b)-b(a+b)$

Use Regular Distributive Property.
$a(a+b)-b(a+b)$

$a*a+a*b-b*a+-b*b$

Simplify.
$a^2+ab-ba+-b^2$

$a^2-b^2$

Hope this helps.
-Benjamin

6 0

3 years ago

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