Solve the equation for the interval [0, 2?).4 sin2x = 4 cos x + 1

A. No solution
B.  
C.
D.


Answer: D

Mathematics

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Solve the problem.The height of a box is 7 inches. The length is three inches more than the width. Find the width if the volume is 126.

A. 6 in. B. 3 in. C. 7 in. D. 18 in.

Mathematics

Draw a valid conclusion from the following argument or write “no conclusion is possible:” If a quadrilateral is a square, then it has four congruent sides and four congruent angles. If a quadrilateral has four congruent sides, then it is a rhombus. SOFT is a square.

What will be an ideal response?

Mathematics

Complete each of the following tables. Round all answers to the nearest tenth.  Xtan87° __________87.5° __________88° __________88.5° __________89° __________89.5° __________90° __________Xtan88.8° __________89° __________89.2° __________89.4° __________89.6° __________89.8° __________90° __________

What will be an ideal response?

Mathematics

Solve the equation on the interval 0 ? ? < 2?. sin ? - cos ? = -1

A. 0, 
B. 0, 
C.
D.

Mathematics