Which of the following physical situations would best be modeled by the graph?
A. The length y of a shadow cast by a tree between sunrise and noon, where t is the angle of elevation of the sun.
B. The length y of a shadow cast by a horizontal flagpole on a vertical wall between sunrise and noon, where t is the angle shown.
C. The number of hours y of sunlight during month t, where t = 1 corresponds to January.
D. The monthly average ocean temperature y in degrees Fahrenheit during month t, where t = 1 corresponds to January.
Answer: A
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Given that the pair of triangles are similar, find x.
A. x = 34 B. x = 28 C. x = 36 D. x = 45
What quantity of a 40% acid solution must be mixed with a 10% solution to produce 300 mL of a 30% solution?
What will be an ideal response?What will be an ideal response?
Simplify the expression by using the order of operations.42 ? 93 + (4 - 2) ? 10
A. 236 B. 11,724 C. 11,684 D. 1316
Find the vertex and y-intercept and graph the equation.y = x2 - 2x + 3
A. vertex: 
; y-intercept: 3
B. vertex: (1, -2); y-intercept: -3
C. vertex: (1, -1); y-intercept: 0
D. vertex: (1, 2); y-intercept: 3