Write an equation relating the variables in the situation described.The sum S of three integers when the largest number is five times the smallest m and two more than the middle one.
A. S = 11m - 2
B. S = 11m + 2
C. S = 11m
D. S = 10m - 2
Answer: A
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Solve. Round to one decimal place when necessary. Due to a lack of funding, the number of students enrolled at City College went from 9000 last year to 2000 this year. Find the percent decrease in enrollment.
A. 450% B. 77.8% C. 22.2% D. 350%
Solve the problem.Roberto invested some money at 7%, and then invested $5000 more than twice this amount at 9%. His total annual income from the two investments was $3950. How much was invested at 9%?
A. $3300 B. $15,000 C. $33,000 D. $28,000
Simplify the expression by using a sum or difference identity.cos(12k) cos (9k) - sin(12k) sin (9k)
A. sin(21k) B. sin(3k) C. cos(21k) D. cos(3k)
Tell in which quadrant or on what coordinate axis the point lies.(0, -6)
A. Quadrant II B. Quadrant I C. y-axis D. x-axis