Q&A If x>0x > 0x>0, y>0y>0y>0, z>0z>0z>0, such that x2+y2+z2=1x^2+y^2+z^2=1x2+y2+z2=1, find the minimum value of 5−8xyz\dfrac{5-8xy}{z}z5−8xy . Inequality
Q&A A car travels 240240240 km in 4 hours. How long does it take the same car to travel 480 km? Ratio and Proportion
Q&A The average of 555 consecutive odd numbers is 212121. Find the smallest odd number. Arithmetic sequence
Q&A Find the zeroes of the polynomial h(x)=x3−6x2+11x−6h(x) = x^3 - 6x^2 + 11x - 6h(x)=x3−6x2+11x−6. Polynomials
Q&A Find the degree and leading coefficient of the polynomial f(x)=4x4+5x3−2x2+7x−3f(x) = 4x^4 + 5x^3 - 2x^2 + 7x - 3f(x)=4x4+5x3−2x2+7x−3. Polynomials
Q&A A regular octagon is inscribed in a circle of radius 101010 cm. Find the area of the octagon. Polygon
Q&A For what values of m does the graph of y=mx2–5x–2 y = mx^2 – 5x – 2y=mx2–5x–2 have no x-intercepts? Quadratic function
Q&A What is the end behavior of the graph of the polynomial function f(x)=3x6+30x5+75x4f(x) = 3x^6 + 30x^5 + 75x^4f(x)=3x6+30x5+75x4? Polynomials
Q&A What is the end behavior of the graph of the polynomial function f(x)=2x3–26x–24f(x) = 2x^3 – 26x – 24f(x)=2x3–26x–24? Polynomials
