Có bao nhiêu giá trị nguyên của tham số m để hàm số y = đồng biến trên khoảng (-∞ ; -10) A. 2
B. vô số
C. 1
D. 3

What is the measure of one interior angle of a pentagon

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.