Find the angle between the given vectors to the nearest tenth of a degree.<-8, 5>, <-7, -2>

A. 14.0°
B. 48.0°
C. 58.0°
D. 24.0°


Answer: B

Mathematics

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Graph the pair of parametric equations with the aid of a graphing calculator.x = cos t + 4 cos 3t, y = 5 cos t - 4 sin 3t, 0 ? t ? 2?

A.

B.

C.

D.

Mathematics

Provide an appropriate answer.Fill in the blanks (four of them) with the best responses:To use DeMoivre's theorem to find the n nth roots of a complex number: 1. Express the number in ________________form. 2. Express the root as a ________________ exponent. 3. Use n =  with ? to find one root. 4. Use n =  and add _______° to ?, _________ times.

A. rectangular; decimal; 360; n - 1 B. fractional; polar; 360; n - 1 C. fractional; polar; 180; n - 1 D. polar; fractional; 360; n - 1

Mathematics

Graph the equation.f(x) = x2 + 5

A.

B.

C.

D.

Mathematics

Show that the given shape will tile the plane. There may be more than one correct answer. If the figure does not tile the plane, state this.?

What will be an ideal response?

Mathematics