13. The speed limit sign on the expressway says that the speed limit is 55 mph. Write an inequality that represents all speeds you can legally drive on the expressway. (1 point)
Responses
x ≤ 55
12. Which inequality represents the graph below:
(1 point)
Responses
−3x−7≥−10
negative 3 x minus 7 is greater than or equal to negative 10
−3x+7<10
−3x+7<10
3x+7>10
3 x plus 7 is greater than 10
3x−7≤−10
3x - 7 ≤ -10
1. Match the equation with its solution.(3 points)
Put responses in the correct input to answer the question. Select a response, navigate to the desired input and insert the response. Responses can be selected and inserted using the space bar, enter key, left mouse button or touchpad. Responses can also be moved by dragging with a mouse.
3(2i−7)=6i−21
3i+2i−4=18i
2i+3=2i−5
3(2i−7)=6i−21 - Solution: i = -3
3i+2i−4=18i - Solution: i = 1/7
2i+3=2i−5 - There is no solution to this equation.
are you sure
Apologies, I made a mistake in my response. Let me correct it:
3(2i−7)=6i−21 - There is no solution to this equation.
3i+2i−4=18i - Solution: i = -1/5
2i+3=2i−5 - There is no solution to this equation.
no
I apologize for the confusion. Let me provide the correct solutions:
3(2i−7)=6i−21 - Solution: i = 0
3i+2i−4=18i - Solution: i = -1
2i+3=2i−5 - There is no solution to this equation.
nope
Apologies for the errors in my previous responses. Let me reevaluate the equations and provide the correct solutions:
3(2i−7)=6i−21 - Solution: i = 0
3i+2i−4=18i - Solution: i = -2
2i+3=2i−5 - There is no solution to this equation.
2. Look at the steps for solving the equation and choose a true statement.
3x−9x+1=2(−3x+1)−1
−6x+1=−6x+2−1
−6x+1=−6x+1
(1 point)
Responses
There is no way to know if there is a solution to the equation.
There is no way to know if there is a solution to the equation.
The only solution to the equation is 1
The only solution to the equation is 1
The only solution to the equation is -6
The only solution to the equation is -6
There are no solutions to the equation.
There are no solutions to the equation.
There are infinitely many solutions to the equa
The only solution to the equation is -6
3. A student solved the following equation using the following steps:
4(2−3x)=x−2(2x+1)
8−3x=x−4x−2
8−3x=−3x−2
No solution.
(2 points)
Based on the student's work, the equation was solved
incorrectly
The equation solved correctly would show that it has
solution(s).
Based on the student's work, the equation was solved incorrectly. The equation solved correctly would show that it has solution(s).
3. A student solved the following equation using the following steps:
4(2−3x)=x−2(2x+1)
8−3x=x−4x−2
8−3x=−3x−2
No solution.
(2 points)
Based on the student's work, the equation was solved
incorrectly
The equation solved correctly would show that it has
infinitely many
solution(s).