Haley52605 Haley52605

03-09-2018
Mathematics

contestada

The difference between the solutions to the equation x^2=a is 30. What is a? Show that your answer is correct.

Respuesta :

12-09-2018

solution:

x˄2 = a ⇒ x = ±√a

The difference between the solutions is

√a - (-√a) = 2√a = 30 ⇒ √a = 15

Therefore,

a = 225.

Answer Link

Otras preguntas

In the story hatchet, in what ways does Brian’s friends and family see him differently after going back to the city

1 2 3 4 5 6 7 8 9 10 You have a spinner, shown below. You wish to test its fairness, so you conduct several trials in which you repeatedly spin the spinner and

Hi guys, I need immediate help with this question please so if anyone knows the answer please don't hesitate to add the answer. If anyone decides to spam their

Simplify. 2( 5 3 + 3 4 ) − 4 3

How do you convert Pa*mm^2 to Pa*m^2?

Widget Wonders produces widgets. They have found that the cost, c(x), of making x widgets is a quadratic function in terms of x. The company also discovered tha

the force that causes a bent stick to return to it's original shape

i NEED HELP ASAP with my science analysis questions !

Rafael bought n packs of pencils. Each pack has 15 pencils. Write an equation to represent the total number of pencils p that Rafael

What are other names for convex mirrors?