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zhuklara [117]
3 years ago
9

Tomas bought 3 software apps and 2 e-books for a total of $21. The two e-books cost $12. If s represents the cost of each app, t

he total cost of all 5 items is represented by mc021-1.jpg. Which statement about verifying the solution for s is true?
Mathematics
2 answers:
LenKa [72]3 years ago
8 0

Answer:

s=3

Step-by-step explanation:

xenn [34]3 years ago
5 0
First compute the cost of the three apps:
21-12=9
The cost of the three apps is $9 then. 
Since s is the price of the apps, we deduce the equation:
3s=9 which means that s=3 
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Evaluate the expression, using the given value of the variable.
iren2701 [21]

Answer:

-16

Step-by-step explanation:

Z/3 - 5(z) + 4(z-2)

12 /3 - 5(12) + 4(12-2)

4-60+40

-16

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First what is 4*5 then 4*7 then 4*8

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aleksandr82 [10.1K]
Plug in the to X value in
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3 years ago
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The polynomial p(x)=7^3-7x-6 has a known factor of (x+1) rewrite p(x) as a product of linear functions
san4es73 [151]

Answer:

p(x)=(x+1)(x+2)(x-3).

Step-by-step explanation:

Note: The given function is not correct.

Consider the given polynomial is

p(x)=x^3-7x-6

It is given that (x+1) is a factor of given function.

Using synthetic division, divide P(x) by (x+1) as shown below.

-1  |     1      0     -7      -6

    |           -1       1       6

--------------------------------------

        1       -1      -6       0

--------------------------------------

Bottom line represents the coefficients of quotient except the last element because it is remainder. So, the given function can be written as

p(x)=(x+1)(x^2-x-6)

p(x)=(x+1)(x^2-3x+2x-6)

p(x)=(x+1)(x(x-3)+2(x-3))

p(x)=(x+1)(x+2)(x-3)

Therefore, the function as a product of linear functions is p(x)=(x+1)(x+2)(x-3).

7 0
3 years ago
What are the zeros of the equation -6x(x+12)-15(x+12)=0
Pavlova-9 [17]
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