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The mean age of ten pupils is 12.7
years. Eight pupils are 11, 10, 12, 11,
14, 13, 14 and 16 years old. The ninth ||
pupil is two years younger than the
tenth. What is the age of:
(a) the ninth pupil?
(b) the tenth pupil?

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: