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maks197457 [2]
3 years ago
10

Which situation is best represented by the following equation?

Mathematics
2 answers:
tankabanditka [31]3 years ago
6 0

Answer:

B, i might be wrong but i think its B

zysi [14]3 years ago
4 0

Answer: D.

Step-by-step explanation:She pays a recurring weekly few of $40 and a $12.50 one-time payment.

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What is the determinant of the coefficient matrix of the system {4x+3y+2z=0 -3x+y+5z=0 -x-4y+3z=0
slava [35]

Answer:

  130

Step-by-step explanation:

You want the determinant of the matrix ...

  \left[\begin{array}{ccc}4&3&2\\-3&1&5\\-1&-4&3\end{array}\right]

One way to figure it is as the difference between the sum of products of the down-diagonals and the sum of products of the up-diagonals:

  D = (4)(1)(3) +(3)(5)(-1) +(2)(-3)(-4) -(-1)(1)(2) -(-4)(5)(4) -(3)(-3)(3)

  = 12 -15 +24 +2 +80 +27

  D = 130

The determinant of the coefficient matrix is 130.

_____

Many scientific and graphing calculators and web sites can perform this calculation for you.

7 0
3 years ago
Is 2a * b = a^2 + b^2 true or false
alisha [4.7K]

First step of the equation is to simplify the equation 2a • b = a2 + b2 into 2 ab = a2 + b2. This cannot be factored anymore although. when we try to substitute a with 5 and b with 2, the answer in the right hand side of the equation is -9. hence the answer to this problem is false. we can try another values to verify.


5 0
3 years ago
A ski resort has 3 lifts, each with access to 6 ski trails. Explain how you can find the number of possible outcomes when choosi
svetlana [45]
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4 0
3 years ago
Creating a One-Variable Equation to Model and Solve a Problem
guajiro [1.7K]

Answer:

The hourly fee for rototiller is $3 per hour.

Step-by-step explanation:

We are given the following in the equation:

The rental company  charged an initial fee of $43 with an additional fee per hour.

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Thus, the hourly fee is $3 per hour.

Equation:

C(x) = 43 + 3x

where C(x) is the cost function and x is the number of hours rototiller is rented.

The hourly fee for rototiller is $3 per hour.

4 0
3 years ago
The cost of a movie ticket is $7. The cost is reduced to $5 for groups of 10 or more. How many people must be in a group for the
belka [17]
I guess 60 people may be because if atleast 10 people makes ticket reduce to $5 so there must be 60 people 

7 0
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