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2 years ago

4x^2 -1= 6x Use the quadratic formula

Mathematics

2 answers:

yanalaym [24]2 years ago

7 0

2. x =(6+√20)/-8=3/-4-1/4√ 5 = -1.309

AnnyKZ [126]2 years ago

3 0

And the final answer would be x=3+13(13 under the radical)/4

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When does a quadratic equation in the form ax2 + b = c have only one real solution

trasher [3.6K]

when the discriminant is = 0

3 0

3 years ago

There are values of t so that cos t=5/4 O A True O B. False

kupik [55]

Answer:

I think its false but im not 100 percent sure i hope this helps

Step-by-step explanation:

6 0

3 years ago

What is the result of adding these two equation? 5x-9y=1 -7x+2y=-5

SCORPION-xisa [38]

The result of adding the given equations is 2x+7y=4.

Step-by-step explanation:

Given equations are;

5x-9y=1 Eqn 1

-7x+2y=-5 Eqn 2

Adding Eqn 1 and 2

$(5x-9y)+(-7x+2y)=1+(-5)\\5x-9y-7x+2y=1-5$

Arranging alike terms;

$5x-7x-9y+2y=-4\\-2x-7y=-4$

Dividing each term by -1

$\frac{-2x}{-1}+\frac{-7y}{-1}=\frac{-4}{-1}\\2x+7y=4$

The result of adding the given equations is 2x+7y=4.

Keywords: addition, linear equations

Learn more about addition at:

#LearnwithBrainly

4 0

3 years ago

A family went to a basketball game. They parked the car in a parking lot which charged $5. The cost per ticket was $24. Write an

Kobotan [32]

Answer:

7 people went to the basketball game.

Step-by-step explanation:

Giving the following information:

They parked the car in a parking lot which charged $5. The cost per ticket was $24.

To calculate the number of people, we need to use the following formula:

Total cost (y)= x*24 + 5

173 = 24x + 5

168/24 = x

7 = x

7 people went to the basketball game.

3 0

3 years ago

What is the range of the data below A.2 B.5 C.12 D.13

Degger [83]

Range of the data = 13

Solution:

To find the range of the given data:

Let us first define what is range.

Range:

The range of the data set is the difference between the highest value and lowest value of the data set.

i. e. Range = Highest value – Lowest value

In the given number line,

Highest value indicated = 115

Lowest value indicated = 102

Range of the data = 115 – 102

= 13

Range of the data = 13

Hence the range of the given data is 13.

4 0

3 years ago