QuickHelper

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About QuickHelper

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Teaching Since: May 2017
Last Sign in: 262 Weeks Ago
Questions Answered: 20103
Tutorials Posted: 20155

Education

  • MBA, PHD
    Phoniex
    Jul-2007 - Jun-2012

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  • Corportae Manager
    ChevronTexaco Corporation
    Feb-2009 - Nov-2016

Category > Engineering Posted 30 Aug 2017 My Price 11.00

quadratic formulas,

Solve the quadratic equation by using the quadratic formula.

3x2 + 4x + 10 = 0

-----------------------------------------------

Solve the quadratic equation by using the quadratic formula. 

0.4x2 + x ­- 0.3 = 0

=================================

Solve the quadratic equation by using the quadratic formula. 

-3x2 ­ - 5x + 2 = 0

A. left curly bracket negative 1 comma space minus 2 over 3 right curly bracket
B. left curly bracket negative 2 comma space 1 third right curly bracket
C. left curly bracket fraction numerator 5 plus i over denominator negative 6 end fraction comma space fraction numerator 5 space minus space i over denominator negative 6 end fraction right curly bracket
D. left curly bracket fraction numerator 5 space plus space 7 i over denominator negative 6 end fraction comma space fraction numerator 5 space minus space 7 i over denominator negative 6 end fraction right curly bracket

==============================

In which case would it be best to use the “Factoring Method” to solve the trinomial equation?

 

a. x2 + 4x = -­5

b. 4.3x2 + 2.4x -­ 3 = 0

c, x2 ­ - 4x + 3 = 0

==============================

Which graph shows a quadratic function which has a discriminant of 0?

A.

B.

C.

D.

-----------------------------------------------------------

If a quadratic equation has a discriminant of 16, what is not always true about its solutions?

a. All solutions are rational numbers

b. All solutions are real numbers

c. All solutions are integers

d. There are two solutions

-----------------------------------------------------------

If a quadratic equation has a discriminant of 16, what is not always true about its solutions?

a. All solutions are rational numbers

b. All solutions are real numbers

c. All solutions are integers

d. There are two solutions

==============================================

How many real solutions does a quadratic equation have if it discriminant is 103

a. 0

b. 1

c. 2

d. 3

========================================

How many real solutions does a quadratic equation have if its discriminant is- ­3?

a. 0

b. 1

c. 2

d. 3

==================================================

Find the discriminant of the quadratic equation.

-12x2 + 5x + 2 = 0

a. 121

b. 71

c. -71

d. -121

==================================

Find the discriminant of the quadratic equation.

9x2 ­ - 6x ­ - 4 = 0

a. 108

b. 180

c. -108

d. -180

Answers

QuickHelper
(10)
Status NEW Posted 30 Aug 2017 10:08 AM My Price 11.00

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