Provide an appropriate response.Find the median for the following grouped data. IntervalFrequency2.5-4.514.5-6.586.5-8.548.5-10.5510.5-12.53
A. 11.5
B. 7.25
C. 7.60
D. 9.5
Answer: B
Mathematics
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Write the equation in terms of a rotated x'y'-system using ?, the angle of rotation. Write the equation involving x' and y' in standard form.x2 + 2xy + y2 - 8x + 8y = 0; ? = 45°
A. 3x'2 - 4
x'y' + y'2 = 0
B. x'2 = -4
y'2
C. x'2 = -4
y'
D. 2x'2 - 
x'y' + 2y'2 = 0
Mathematics
Evaluate for the value of the variable(s) indicated.-4x2 - 7x - 2 for x = -1
A. -5 B. 1 C. 9 D. -13
Mathematics
Solve the problem.The standard formula for the tangent of the difference of two angles is 
Derive the formula.
What will be an ideal response?
Mathematics
Find the absolute value of the complex number.10 + 2i
A. 12
B. 2
C. 104
D. 2
Mathematics