Mathematics
The quadratic equation x2 + x + p = 0 has real and distinct roots, find the value of p.
Related Questions
Use a graph for this question. Draw an ogive for the given distribution. From the graph determine :
(i) the median
Marks No. of students 0-10 5 10-20 10 20-30 14 30-40 21 40-50 25 50-60 34 60-70 36 70-80 27 80-90 16 90-100 12 (ii) the number of students scoring above 65 marks.
(iii) if 10 students qualify for merit scholarship, find the minimum marks required to qualify.
(iv) the number of students who did not pass, if the pass percentage was 35.
The given figure shows two triangles ABC and AMP, right angled at points B and M respectively.
(i) Prove that △ ABC is similar to △ AMP.
(ii) If AC = 10 cm, AP = 12 cm, AM = 7.2 cm and PM = 9.6 cm; find BC and AB.
The data regarding the number of patients attending a hospital in a month are as given below.
No. of patients No. of days 10-20 5 20-30 2 30-40 7 40-50 9 50-60 2 60-70 5 Find the mean number of patients (using short method and by taking assumed mean as 45). Give your answer, correct to two significant figures.