Step-by-step explanation:
D={0,1,2,..}
E={1,4,9,16,25}
F={22,24,26,28}
expression 4 is correct
Answer:
the answer should be x = -6
Step-by-step explanation:
-9x + 6y = 18
-9x + 6(-6) = 18
-9x - 36 = 18
-9x - 36 + 36 = 18 + 36
-9x = 54
-9x ÷ -9 = 54 ÷ -9
x = -6
Answer:
The last one
Step-by-step explanation:
In a right triangle the expression of the sin is the quotiont of the opposite side and the hypotenuse
- sin x° =

Answer:
The solution is: (2, -1)
Step-by-step explanation:
First we rewrite the second system equation
→ 
Now we have the following system of equations:


To solve the system multiply the first equation by -3 and add it to the second equation


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Now we substitute the value of y in the first equation and solve for x



The solution is: (2, -1)
Answer
Step-by-step explanation: