What is 11/20 as an decimal

Find the Gp of 30th of 3,9,

Can someone explain to me how to find the vertex form of this equation? y = - x^2 + 12x-4 Do i use the - b/2a formula? I just need this to be explained better biased on a equation i need to solve.

Which of the following is equivalent to (2x + 2) (3x + 1) 6x squared + 2 or 5x squared + 8x + 3

Which step should be taken to isolate the variable in the following equation? 7d = 49

115+150+150+150+150-100

Diane's plane is due to arrive when the hour hand is just past 3 and the minute hand is on the 4. What time should the plane arrive?

One of the solutions to x2 - 2x - 15 = 0 is x = - 3. What is the other solution? Ox=-5 Ox = - 1 0 x=1 x = 5

Use scientific notation to estimate the following: How many times greater is Mount Everest's highest peak than Mount Olympus's? Mount Everest - 8,849.87 meters Mount Olympus - 2,919.07 meters

Round 9.725 to The nearest tenth

Find the three arithmetic means in this sequence 14 and 26