Use the fundamental identities to simplify the expression.
A. cos3?
B. sec2?
C. tan2?
D. sin ?
Answer: C
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Solve the equation by using the quadratic formula. Give only real number solutions.x2 + 4x = 7
A. 
B. 
C. 
D. 
Solve the problem.Find the volume of a rectangular pyramid if the area of its base is 15 m2 and its height is 4 m . Round your answer to the nearest unit.
A. 30 m3 B. 60 m3 C. 20 m3 D. 18 m3
To construct an isosceles triangle with vertex angle A and sides of length a, what arc would you draw first?
What will be an ideal response?
Write the whole number in word form.128,615
A. One hundred twenty thousand, eighty-six hundred, fifteen B. One hundred twenty-eight million, six hundred fifteen C. Six hundred fifteen thousand, one hundred twenty-eight D. One hundred twenty-eight thousand, six hundred fifteen