Read the excerpt from "Flight into Yesterday." Amelia pushed both throttles forward. The plane moved slowly, heavy with fuel for the long ocean flight that lay ahead. At last it began to gather speed. It went fast and faster, hurtling toward the cliff. Almost at the very edge she felt it leave the ground. They were safely off, flying low over the ocean, but flying. Now she could concentrate on gaining altitude. She could start picking out the islands that would serve as landmarks for the early part of the flight.

How does this excerpt help develop the central idea of the passage?

It explains the process of flying the plane.
It describes the toll the trip took on her.
It demonstrates her role as a pioneer.
It shows why the trip was so risky.

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Atest of sobriety involves measuring the subject's motor skills. a sample of 31 randomly selected sober subjects take the test and produce a mean score of 64.4 with a standard deviation of 2. a claim is made that the true mean score for all sober subjects is equal to 65. for each part below, enter only a numeric value in the answer box. for example, do not type "z =" or "t =" before your answers. round each of your answers to 3 places after the decimal point. (a) calculate the value of the test statistic used in this test. test statistic's value = (b) use your calculator to find the p-value of this test. p-value = (c) use your calculator to find the critical value(s) used to test this claim at the 0.2 significance level. if there are two critical values, then list them both with a comma between them. critical value(s) =