Consider this solution to a problem.
Problem: -4(6 - y) + 4 = -4
Step 1: -24 - 4y + 4 = -4
Step 2: -20 - 4y = -4
Step 3: -4y = 16
Step 4: y = 4
Choose the number of the step where the first mistake was made.
Then, solve the equation correctly.
Which graph best represents the solution to the system?
x + y ≤ 6
x + 2y ≤ 8
The formula for the rate at which water is flowing is
R = --- , where
- R is the rate
- V is the volume of water, measured in gallons (g)
- t is the amount of time, in seconds (s), for which the water was measured
Select an appropriate measurement unit for rate:
A train travels 250 miles at a constant speed (x), in miles per hour.
Enter an equation that can be used to find the speed of the train, if the time to travel 250 miles is 5 hours.
Which inequality represents all possible solutions of -6n < -12 ?
A.) n < 72
B.) n > 2
C.) n < 2
D.) n > 72
Enter an expression equivalent to:
(3x² + 2y² - 3x) + (2x² + y² - 2x) - (x² + 3y² + x)
Select the expression that is equivalent to m² - 25.
A.) (m² - 10m + 25)
B.) (m² + 10m + 25)
C.) (m - 5)(m + 5)
D.) (m - 5)²
The graph of a quadratic function f(x) intersects the x-axis at -3 and 5.
What is a possible equation for f(x)?
An equation is shown.
2x² - 5x - 3 = 0
What value of x makes the equation true?
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