arimillion11 arimillion11

18-07-2017
Mathematics

contestada

What is the x coordinate of the vertex of the parabola whose equation is y=3x^2+9x?

A. -3
B. -1 and a half
C. -2/3

Respuesta :

18-07-2017

Find the vertex by setting the 1st derivative to 0
1st derivative is y=6x+9.

6x+9=0 => x=-9/6 = -3/2

So B is the answer.

Answer Link

Otras preguntas

Arm circles are an effective dynamic stretch for swimmers because they raise blood pressure and improve muscle stamina lower body temperature for a higher in

Which of the following trends that started in early civilizations became stronger in classical civilizations? A. The isolation of distant city-states from one a

What advantages and disadvantages might being nonaligned have offered a developing nation during the Cold War?

To convince North Vietnam to stop reinforcing the Vietcong, President Johnson ordered Operation Rolling Thunder, which _____.

In the wake of the Bay of Pigs invasion, tensions

Hi I need some help with these questions. Thanks :) 1. 3 consecutive odd numbers add to give 405. Find the smallest of the numbers. 2. 5 times a number less 7 i

solve for x: square root of 5x+3= 2 square root of 3x-8

Disintegration of the Austro-Hungarian Empire, creation of new nation-states in central Europe, and Germany’s loss of colonies were all consequences of (1)

What are the steps to solving the inequality 3b + 8 ≥ 14

Which of the following statements is true regarding sentence components? A. Every sentence must have an object. B. The object can be a noun or a verb. C. The pr