Astudent says that if 5x2 = 20, then x must be equal to 2. do you agree or disagree with the student? justify your answer. i disagree. if each side of the equation is divided by 5, the result is  x2  = 4. by the square root property of equality,  x  = -2 or  x  = 2. so  x  could be -2 instead of 2.

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Which one ? is the answer and how to find this answer

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct