Solve the equation 2x^2 + 8x - 1 = 0
by completing the square.
Give your answers correct to 2 decimal places.

What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radil and altitudes is 4: 3? 23

Prove the divisibility of the following numbers: 25^9 + 5^7 is divisible by 30.also, read as (25 to the power of 9) + (5 to the power of 7) is divisible by 30. blank x 30what is the blank? ( it should be expressed in exponent form)

Build is 120 wide 20 feet high 48 feet long how many cubic feet and the volume