Anyone know Algebra II need help Explain how you can determine that the following system has one unique solution – without actually solving the system.

2x+y=4
2y=6-2x

What is the value with a place of tenths in 907.456 1) 0 2) 6 3) 4 4) 5

Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()