Lớp có 10 sinh viên giỏi toán, 7 sinh viên giỏi anh và 3 sinh viên vừa giỏi toán, giỏi anh.
A là biến cố sinh viên giỏi toán .
B là biến cố sinh viên giỏi anh.
Tìm C = biến cố sinh viên giỏi 2 môn = ?
D = biến cố sinh viên giỏi ít nhất 1 môn = ?

Mr. walker gave his class the function f(x) = (x + 3)(x + 5). four students made a claim about the function. each student’s claim is below. jeremiah: the y-intercept is at (15, 0). lindsay: the x-intercepts are at (–3, 0) and (5, 0). stephen: the vertex is at (–4, –1). alexis: the midpoint between the x-intercepts is at (4, 0). which student’s claim about the function is correct?

Geometry: determine whether segment mn is parallel to segment kl. justify your answer. jm 6 mk 3 jn 8 nl 4

One positive number is 9 more than twice another. if their product is 95, find the numbers