An ice cream cone is 4 inches deep and 2 inches across the top, as shown in the figure below. If we wanted to make a king-size cone which has the same shape but is 2.5 inches across the top, how deep would the cone be?
?
A. 5 inches deep
B. 4.5 inches deep
C. 6 inches deep
D. 5.5 inches deep
Answer: A
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Graph the equation and give the coordinates of the vertex.y = x2 + 4x + 2 
A. (-2, -6)
B. (2, -2)
C. (-2, -2)
D. (2, 6)
Solve the problem.The path of a projectile fired at an inclination ? (in degrees) to the horizontal with an initial speed v0 is a parabola. The range R of the projectile, that is, the horizontal distance that the projectile travels, is found by using the formula R = 
sin(2?)where g is the acceleration due to gravity. The maximum height H of the projectile is H = 
(1 - cos(2?))Find the range R and the maximum height H in terms of g if the projectile is fired with an initial speed of 200 meters per second at an angle of 15° and then at an angle of 22.5°. Do not use a
calculator, but simplify the answers. What will be an ideal response?
Solve the problem.Consider the data showing the average life expectancy of woman in various years. 
Find the regression line. Let the year 1900 represent x = 0.
A. y = 0.37x - 21.8 B. y = 0.15x + 60.9 C. y = - 0.11.2x + 23.1 D. y = 8.3x + 22.1
Solve the system.
What will be an ideal response?