Solve the problem.Use determinants to find the area of the triangle with vertices (-5, -4), (5, 1), and (1, 5).
A. 29.75
B. 31.25
C. 30.0
D. 31.5
Answer: C
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Solve the problem involving related quantities.The perimeter of a triangle is 46 centimeters. Find the lengths of its sides, if the longest side is 5 centimeters longer than the shortest side, and the remaining side is 2 centimeters longer than the shortest side.
A. 8 cm, 11 cm, 13 cm B. 13 cm, 15 cm, 18 cm C. 15 cm, 17 cm, 20 cm D. 13 cm, 15 cm, 20 cm
Solve the problem.Glenda wants to glue glitter over a piece of felt shaped like a parallelogram with a height of 60 inches and a base of 54 inches. If the glitter costs $0.50 per square foot, how much will it cost to cover the felt?
A. $11.25 B. $45.00 C. $1620 D. $135.00
Use trigonometric identities to find the exact value.sin 25° cos 95° + cos 25° sin 95°
A. - 
B. 
C. 
D. - 
Solve the equation. Round your answer to four decimal places.2.5 ? log3(x - 1) = 6
A. x = 13.9666 B. x = 14.9666 C. x = 19 D. x = 730