MATHEMATICS HIGH SCHOOL

When graphed, which of the following is the solution of the given system below?-3=-y-4x

0=6-2y-8x

a.(2,-5)

b. (1,2)

c. (2,-2)

d. Infinite number of solutions

Answers

Answer 1
Answer:

Answer:

None of the above.

Step-by-step explanation:

-3 = y - 4x

Thus y = 4x - 3

0 = 6 - 2y - 8x

2y = 6 - 8x

Thus y = 3 - 4x

4x - 3 = 3 - 4x

8x = 6

x = 8/6 = 4/3

y = 4 × 4/3 - 3 = 7/3

Should be (4/3, 7/3)

Hopefully this answer helps you :)

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Answers

Answer:

The answer to your question is the letter B

Step-by-step explanation:

Data

                 | 5  0 |   | 2  - 1 |

                 | 3 -5 |   | 2  - 2|

Process

1.- This is the product of two matrices 2 x 2 so the result will be a 2 x 2 matrix.

- Multiply the first row of the first matrix by the first column of the second matrix.

-Multiply the first row of the first matrix by the second column of the second matrix.

- Multiply the second row of the first matrix by the first column of the second matrix.

-Multiply the second row of the first matrix by the second column of the second matrix.

                 | 5  0 |   | 2  - 1 |         | (5 x 2) + (0 x 2)    (5 x -1) + (0 x -2) |

                 | 3 -5 |   | 2  - 2|    =   | (3 x 2) + (-5 x 2)   (3 x -1)  + (-5 x -2)|

                                              =  | 10 + 0    -5 + 0 |

                                                  | 6 - 10     -3 + 10|

                                             = | 10  - 5 |

                                                | -4     7|

X • x = 2x need help

Answers

x\cdot x=2x\nx^2-2x=0\nx(x-2)=0\nx=0 \vee x=2
x*x=2x \n x^2=2x \n x^2-2x=0 \n x(x-2)=0 \n x = 0 \ \ \ \vee \ \ \ x-2=0 \ therefore \ x= 2

5)Trevon's school is selling tickets to the annual dance competition. On the first day of ticket salesthe school sold 5 senior citizen tickets and 8 student tickets for a total of $94. The school took in
$164 on the second day by selling 10 senior citizen tickets and 13 student tickets. Find the price
of a senior citizen ticket and the price of a student ticket

Answers

Answer:

$8 for student tickets and $4.40 for senior tickets

Step-by-step explanation:

10 (5x +8y=94)

5 (10x +13y=164)

50x+80y=940

- 50x +65y=820

80y-65y= 940-820

15y= 120/15

y=8

(y is the cost of student tickets)

5x+8y=94

5x+8(9)=94

5x+72=94-72

5x=22/5

x= 4.4

Which equation is equivalent to the equation 6x + 9=12

Answers

Answer:

the answer is 1/2

Step-by-step explanation:

i solved it

Subtract the quotient of 18 and 2 from the sum 22 and 9

Answers


Quotient, implies division, so the quotient of 18 and 2 is 6:

18/2=6

Sum implies addition, so the sum of 22 and 9 is 31:
22+9=31

Now we can subtract the quotient of 18 and 2, '6', from the sum of 22 and 9, '31'.

31-6=25

Answer=25

Answer:22

Step-by-step explanation:

Quotient, implies division, so the quotient of 18 and 2 is 6:

18/2=9

Sum implies addition, so the sum of 22 and 9 is 31:

22+9=31

Now we can subtract the quotient of 18 and 2, '6', from the sum of 22 and 9, '31'.

31-6=25

Answer=22

In triangle NQL, point S is the centroid, NS = (x + 10) feet, and SR = (x + 3) feet. Triangle N Q L has centroid S. Lines are drawn from each point to the midpoint of the opposite side to form line segments N R, Q M, and L P. The length of line segment N S is x + 10 and the length of line segment S R is x + 3.

What is RS?

4 feet
7 feet
10 feet
14 feet

Answers

Answer:

B. 7 feet

Step-by-step explanation:

Given:

NS = (x + 10) ft

SR = (x + 3) ft

Required:

RS

SOLUTION:

Based in the centroid theorem, the centroid, S will divide the median, line segment NR, into NS and SR, such that NS : SR = 2 : 1.

Therefore:

NS = 2(SR)

x + 10 = 2(x + 3) (substitution)

Solve for x

x + 10 = 2x + 6

Collect like terms

x - 2x = -10 + 6

-x = -4

divide both sides by -1

x = 4

SR = (x + 3) ft (SR is same as RS)

Plug in the value of x

SR = (4 + 3) ft

SR = RS = 7 ft

Answer:

i got b too

Step-by-step explanation:
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