Divide. Write the answer in lowest terms and as a whole or mixed number where possible.28 ÷ 
A. 21
B. 37
C. 
D. 7
Answer: A
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Convert the following.74 days to weeks and days
A. 14 weeks and 5 days B. 9 weeks and 4 days C. 10 weeks and 4 days D. 10 weeks and 3 days
Solve the problem.In his algebra class, Rob has scores of 79, 85, 81, and 65 on his first four tests. To get a grade of C, the average of the first five tests must be greater than or equal to 70 and less than 80. Solve an inequality to find the range of scores that Rob can earn on the fifth test to get a C.
A. x ? 40, where x represents Bob's score on the fifth test B. 40 < x < 90, where x represents Bob's score on the fifth test C. 40 ? x ? 90, where x represents Bob's score on the fifth test D. 40 ? x < 90, where x represents Bob's score on the fifth test
Provide an appropriate response.Derive the identity sec-1(-x) = ? - sec-1 x by combining the following two equations:cos-1(-x) = ? - cos-1 xsec-1 x = cos-1(1/x)
What will be an ideal response?
Solve the equation. Express radicals in simplest form.81x2 - 49 = 0
A. 
, - 
B. 
, - 
C. 0, 
D. 
, 7