Use a grapher to find the vertex, rounding to the nearest hundredth when necessary.f(x) = 5x2 - x + 4
A. (-0.1, 3.95)
B. (0.1, 4.05)
C. (0.1, 4)
D. (0.1, 3.95)
Answer: D
Mathematics
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Classify the triangle as acute, right, or obtuse and as equilateral, isosceles, or scalene.
A. Acute, scalene B. Obtuse, equilateral C. Acute, equilateral D. Obtuse, isosceles
Mathematics
Perform the indicated operation
Mathematics
Find a value of ? in [0°, 90°] that satisfies the statement. Leave answer in decimal degrees rounded to seven decimal places, if necessary.cos ? = 0.49566425
A. 119.713561° B. 60.2864387° C. 299.713561° D. 29.7135613°
Mathematics
Use a reciprocal identity to find the indicated trigonometric function of ?.csc ? if sin ? = - 
A. 
B. 
C. - 
D. - 
Mathematics