Use a graphing calculator to solve the system of equations. Round your solution to one decimal place.1.9x + 3.8y + 1.5z = 4.03.3x - 7.0y + 0.9z = -3.74.0x + 15.6y - 1.5z = 11.1
A. (0.1, 0.3, 0.3)
B. (0.0, 0.1, 0.1)
C. (0.5, 1.6, 1.3)
D. (0.2, 0.7, 0.6)
Answer: D
Mathematics
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A.
B.
C.
D.
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Solve the equation for the interval [0, 2?).cos2 x - cos x = 0
A. ,
B. 0, ,
C. 0, , ?,
D. , ?
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Give the degree of the polynomial (when simplified), and tell whether it is a monomial, a binomial, a trinomial, or none of these.-15y5 + 15y4 + 9
A. Degree 5; binomial B. Degree 5; trinomial C. Degree 4; trinomial D. Degree 9; trinomial
Mathematics
Determine the real solutions to the system of nonlinear equations.x2 + y2 = 90x2 - y2 = -72
A. (3, -9), (3, 9) B. (3, 9), (9, 3), (-3, -9), (-9, -3) C. (3, 9), (-3, 9), (3, -9), (-3, -9) D. (-3, -9), (-9, -3)
Mathematics