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Sedaia [141]
4 years ago
10

Solve by the method of your choice, select correct choice below if it is either a solution set, infinitely many solutions the so

lution set is (x,y)? or if there is no solution and the solution set is 0
7x-3y=6
2x+y=11
Mathematics
1 answer:
mafiozo [28]4 years ago
6 0

Answer: it is a solution set

Step-by-step explanation:

The given system of simultaneous linear equations is expressed as

7x-3y=6 - - - - - - - - - -1

2x+y=11 - - - - - - - - - - - 2

We would eliminate x by multiplying equation 1 by 2 and equation 2 by 7. It becomes

14x - 6y = 12

14x + 7y = 77

Subtracting, it becomes

- 13y = - 65

Dividing the left hand side and the right hand side of the equation by - 13, it becomes

- 13y/13 = - 65/- 13

y = 5

Substituting x = 5 into equation 2, it becomes

2x + 5 = 11

Subtracting 5 from the left hand side and the right hand side of the equation, it becomes

2x + 5 - 5 = 11 - 5

2x = 6

Dividing the left hand side and the right hand side of the equation by 2, it becomes

x = 6/2 = 3

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3 years ago
A baseball team has 4 ​pitchers, who only​ pitch, and 16 other​ players, all of whom can play any position other than pitcher. F
ivolga24 [154]

Answer:

2,075,673,600 batting orders may occur.

Step-by-step explanation:

The order of the first eight batters in the batting order is important. For example, if we exchange Jonathan Schoop with Adam Jones in the lineup, that is a different lineup. So we use the permutations formula to solve this problem.

Permutations formula:

The number of possible permutations of x elements from a set of n elements is given by the following formula:

P_{(n,x)} = \frac{n!}{(n-x)!}

First 8 batters

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Last batter:

Any of the four pitchers.

How many different batting orders may​ occur?

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4 years ago
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luda_lava [24]
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To pass 1.38 radians to degrees you can use the ratio 180° / π radian = 1.

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