Solve the problem.The long jump record, in feet, at a particular school can be modeled by 
where x is the number of years since records began to be kept at the school. What is the record for the long jump 
after record started being kept? Round your answer to the nearest tenth.
A. 23.3 feet
B. 28.5 feet
C. 28.7 feet
D. 28.6 feet
Answer: C
Mathematics
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Find the triple scalar product (u x v) ? w of the given vectors.u = 2i - 4j + 3j; v = -3i - 8j + 9k; w = 7i - 6j + 5k
A. 562 B. -62 C. -110 D. 166
Mathematics
Write the number in scientific notation.A light-year is a measure of length defined as the distance that light travels in one year, which is about 5,900,000,000,000 miles. Write this number in scientific notation.
A. 0.59 × 10-11 B. 5.9 × 10-12 C. 59 × 1011 D. 5.9 × 1012
Mathematics
Evaluate the expression, if possible.(-1000)2/3
A. - 100
B. -10
C. - 
D. 100
Mathematics
Combine like terms whenever possible.14x7 - 10x7 + 11x5 + 3x7 - 3x5
A. 15x12 B. 7x7 + 8x5 C. 15x7 D. Not possible
Mathematics