Find the magnitude or direction angle of the given vector as indicated.i + j; Find the direction angle ?.
A. 30°
B. 60°
C. 135°
D. 45°
Answer: D
Mathematics
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Find an approximate value for the integral, using the trapezoidal rule with n intervals. Round the answer to the nearest tenth if necessary.
, n = 4
A. 70 B. 1242 C. 1260 D. 1386
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Provide an appropriate response.25% of 56 is what number? Use the percentage proportion.
A. 2.24 B. 1,400 C. 14 D. 224
Mathematics
Use the FOIL method to find the products.(x + 6y)(3x - 4y)
A. x2 + 14xy - 24y2 B. 3x2 + 14xy + 14y2 C. x2 + 14xy + 14y2 D. 3x2 + 14xy - 24y2
Mathematics
Decide whether or not the points are the vertices of a right triangle.(-9, -7), (-5, -7), (-5, -2)
A. Yes B. No
Mathematics