Find, Correct to the Nearest Degree, the Angle Between the Planes

question 160

Multiple Choice

Find, correct to the nearest degree, the angle between the planes.
$$x + y - z = 1,10 x - 15 y + 20 z = 5$$

• A) \(122 ^ { \circ }\)
• B) \(12 ^ { \circ }\)
• C) \(22 ^ { \circ }\)
• D) \(102 ^ { \circ }\)
• E) none of these

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Definitions:

New Nationalism

A political philosophy advocated by President Theodore Roosevelt, emphasizing vigorous government intervention to promote social justice and the economic welfare of the underprivileged.

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Theodore Roosevelt

The 26th President of the United States (1901-1909) known for his progressive policies, conservation efforts, and leadership of the Rough Riders during the Spanish-American War.

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The process by which the Republican Party in the United States selects its candidate for a major political office, such as the presidency.