I need help on this question please help?

Answers

Answer 1

Answer: a) $(7)/(20)$
b) $(2+7)/(20)=(9)/(20)$
c) $0$

Answer 2

Answer: Hello !

a) $7/20$

b) $2/20 + 7/20 \n=(2+7)/20 \n =9/20$

c) $The answer is 0.$

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For which function is the ordered pair (2, 12) not a solution?y = 6x
y = x + 10
y = 14 - x
y = x - 10

Answers

For the equation y = x - 10 the ordered pair (2,12) is not a solution. The correct option is D.

What is an expression?

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the ordered pair is (2, 12). The equations will be checked as,

For y = 6x

12 = 6 x 2

12 = 12

For y = x+ 10

12 = 2 + 10

12 = 12

For y = 14 - x,

12 = 14 - 2

12 = 12

For y = x - 10,

12 = 2 - 10 = -8

Hence, the equation y = x -10 is not a solution.

To know more about an expression follow

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Answer:

y = x -10

Step-by-step explanation:

Rewrite each expression as a sum.12. - 8x2 + 3xy - 9x - 3

13. 2ab -- 5ab2 - 9a2b

Answers

13 ). 2ab + 5ab x 2 - 18ab

2ab + 10ab - 18ab

- 6ab

Answer= - 6ab

Two ships leave whittier, Ak at 7 AM. The first ship sails towards Valdez on a 54° course at a constant rate of 36 mi/h. The second ship sails towards Knight island on a 144° course at a constant speed of 42 mi/h. Find the distance between the ships at 11 AM.