Solve the problem.Let angle POQ be designated ?. Angles PQR and VRQ are right angles. If ? = 13°, find the length of US accurate to four decimal places. 
A. 0.2309
B. 1.0263
C. 4.3315
D. 0.2250
Answer: C
Mathematics
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Name the conic or limiting form represented by the given equation.3x2 + 42x + 7y2 - 28y + 147 = -28
A. Hyperbola B. Point C. Ellipse D. Empty set
Mathematics
Use a calculator to verify the value found by using the double-angle formulas.Find cos 298° directly and by using functions of 149°.
A. -0.8999 B. -1.7144 C. 0.4695 D. -0.8572
Mathematics
Perform the indicated arithmetic.4
+ 5
A. 9
B. 10
C. 9
D. 9
Mathematics
Tell whether the statement is true or false.{x | x is an even counting number between 10 and 16} = {8}
A. True B. False
Mathematics