Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.-6x - 5y - 10z = -6 and 9x + 4y - 10z = -4
A. 0.147 rad
B. 1.453 rad
C. 0.719 rad
D. 1.424 rad
Answer: D
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Answer the question about rigid motions.For two-dimensional objects moving in a plane, there are four possible rigid motions. Reflections and rotations are two of the possibilities. What are the other two types of rigid motions?
A. translations and glide reflections B. glide reflections and rotary reflections C. translations and screw displacements D. translations and rotary reflections E. glide reflections and screw displacements
Collect like terms.3x + 7x
A. 10x B. 21x C. 20x D. 10x2
Solve the equation.ln (10 + 2x) = 2 ln (x + 1)
A. {3, -3}
B. 
C. {-3}
D. {3}
Write the phrase as a variable expression. Use x to represent "a number."5 decreased by 3 times a number
A. 3 - 5x B. 5x - 3 C. 3x - 5 D. 5 - 3x