Y Use the diagram to answer the questions.
Is line m parallel to line n? Explain.
5
3
Is line m perpendicular to line k? Explain.
k
2
1
-5
4 -3 -2
X
5
3
4
-2
3
n
om
mn

In the diagram below, dab and dac are adjacent angles. if mdac = 25°, what is mdab in degrees? what is mbac in degrees?

Need solving this second acceleration problem.

Titus works at a hotel. part of his job is to keep the complimentary pitcher of water at least half full and always with ice. when he starts his shift, the water level shows 4 gallons, or 128 cups of water. as the shift progresses, he records the level of the water every 10 minutes. after 2 hours, he uses a regression calculator to compute an equation for the decrease in water. his equation is w –0.414t + 129.549, where t is the number of minutes and w is the level of water. according to the equation, after about how many minutes would the water level be less than or equal to 64 cups?