carleebracaleovfnpf carleebracaleovfnpf

11-11-2019
Mathematics

contestada

Given the equation square root of 2x-1=7 solve for x and identify if it is an extraneous solution. I came up with the answer 25 but is it an extraneous solution?

Respuesta :

MathPhys MathPhys

11-11-2019

Step-by-step explanation:

To check if a solution is extraneous, simply plug it back into the original equation. If it works, then solution isn't extraneous.

√(2x−1) = 7

√(2(25)−1) = 7

√(50−1) = 7

√(49) = 7

7 = 7

So the solution isn't extraneous.

Answer Link

Otras preguntas

What is 36 times 34 times pi?

If the mean of symmetrical distribution is 28, which of these values could be the median of the distribution.

Select _______ to apply formatting to several cells at the same time. A. a cell containing a value B. a range C. any cell D. a label text cell

You increase the size of a page by 30%30%. Then you decrease it by 30%30%. What is the size of the page now?

why is chronological thinking important?

What percent of 688 is 577.92 ???who can help me make an equation to solve this

Which statement best describes a difference between a democracy and a republic?

Is 7/8 greater than 8/10

Part of China is circled in black on the map above. Based on the map key, why is southeastern China not at risk of desertification? A. Southeastern China is col

What are the major geographic features of ancient china?