Find the angle between vectors v and w. Round the answer to the nearest tenth of a degree.v = 
, w = 
A. 90°
B. 53.1°
C. 143.1°
D. 36.9°
Answer: D
Mathematics
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Plot the two real numbers on the real number line. Then place the appropriate inequality symbol (< or >) between them. -2, -3
A. 
-2 > -3
B.
-2 < -3
Mathematics
Solve the formula for the given variable.E = hv
for n
A. n = 
B. n = hv
C. n = 
D. n = 
- 
Mathematics
Use factoring to find the zeros of the quadratic function. List the x-intercepts of the graph of the function.F(x) = 5x2 + 23x - 10
A. x = 
, x = 5
B. x =
, x = - 5
C. x = - 
, x = - 5
D. x =- 
, x = 5
Mathematics
Write the number in scientific notation.0.000345
A. 3.45 × 10-5 B. 3.45 × 10-4 C. 3.45 × 104 D. 3.45 × 10-3
Mathematics