Approximate the value of the expression to 2 decimal places.sin-1 
in radians
A. -7.18
B. -0.13
C. 1.70
D. 97.18
Answer: B
Mathematics
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Use the at least once rule to find the indicated probability.An unprepared student makes random guesses on all questions of her multiple choice test. If there are 19 questions and each question has 5 possible answers, what is the probability she will answer at least one question correctly?
A. 0.969 B. 0.004 C. 0.986 D. 0.014
Mathematics
Multiply (3 - j4) ð (3 - j2).
What will be an ideal response?
Mathematics
If a triangle has vertices of 
and 
then the area of the triangle is given by 
Find the area of the triangle with vertices at the given points.(2, 5) (5, 7) (8, 4)
A. 2.5 B. 15 C. 7.5 D. 5
Mathematics
Use the rules of exponents to simplify the expression. Use positive exponents to write the answer.
2
A. 
B. 
C. 
D. 
Mathematics