Chứng minh rằng giá trị biểu thức sau luôn âm với mọi x
-5+4x - x^2

Customers at an ice-cream shop took a survey .the results showed that 144 customers rated the shop as being "very satisfactory ."this number represented 45%of the total nunber of customers who took the survey

Graph y = -|x| + 2. click on the graph until the correct one appears.

Write the equation in logarithmic form e^x=403.429