Determine the coordinates of the vertex by completing the square.f(x) = x2 + 4x
A. (4, -2)
B. (-2, -4)
C. (-4, 2)
D. (2, -4)
Answer: B
Mathematics
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Evaluate the expression using the given value of the variables.3x2 - 4y2 for x = -3, y = -2
A. -25 B. 11 C. 43 D. 35
Mathematics
Evaluate.43 + 32
A. 73 B. 70 C. 18 D. 21
Mathematics
Find the x-intercepts of the graph of the equation. (The grids are intentionally not included.)y = x2 + 3x - 70
A. (10, 0), (1, 0) B. (-10, 0), (7, 0) C. (17, 0) D. (10, 0), (-7, 0)
Mathematics
In a strange mix-up, several people (none of whom spoke the same language) needed to pool their resources to survive the scorching desert heat. Eric had 55 bottles of water; Dimetrius had 
bottles; Sparticus had 
bottles. How many bottles of water did they have all together?
?
__________ bottles
Fill in the blank(s) with the appropriate word(s).
Mathematics