Which of the following equations describes the graph? y = -x2 - 2x + 1
y = x2 + 2x + 1
y = x2 – 2x + 1
y = x2 – X-1

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Human body temperatures have a mean of 98.20° f and a standard deviation of 0.62°. sally's temperature can be described by z = 1.4. what is her temperature? round your answer to the nearest hundredth. 99.07°f 97.33°f 99.60°f 100.45°f