13. in δabc, the measure of ∠a = 34° and the measure of ∠b = 43°. what is the measure of ∠c? a. 13° b. 103° c. 58° d. 93°

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

If f(x) = -5x + 1 and g(x) = x3, what is (gºf)(0)? enter the correct answer

Three students each examine the system of linear equations shown. 8x + 4y = 16 8x + 2y = 8 caleb says there is exactly one solution. jeremy says there is no solution. kim says there are infinitely many solutions. which student is correct? provide mathematical reasoning to support your answer. answer in complete sentences. : d