Step-by-step explanation:
3x^2-2x+1
3(2)^2-2(2)+1
3(4)-4+1
12-4+1
8+1=9 Answer
Answer: D
Tracing
Step-by-step explanation:
Sir Arthur Conan Doyle, author of the Sherlock Holmes stories, was credited as an influence to forensic science due to his character's use of methods such as fingerprints, serology, ciphers, trace evidence, and footprints long before they were commonly used by actual British and American police forces.
Answer:
The rate is 47.5 miles per hour :D
Step-by-step explanation:
Answer:
190 cm²
Step-by-step explanation:
Use the area of a trapezium formula: 
where a and b are the top and bottom bases, and h is the height.
Therefore,
area =
= 190 cm²