dionquijano dionquijano

01-10-2018
Mathematics

contestada

How many real solutions does p^2-5p+7=0 have

Respuesta :

Аноним Аноним

01-10-2018

Let's work out the discriminant b^2 - 4ac:-

D = (-5)^2 - 4*1*7 = 25 - 28 = -3

A negative discriminant shows that there are NO real solutions Answer

Answer Link

Otras preguntas

Please explain I'm really confused

Please show me the work thank you

f(x)=2x+2 when x=-1 A. 3 B. 4 C. -4 D. 0

is the answer A Which is a symbol of the human spirit in The Secret Garden? A the robin redbreast B the moors C the secret garden D roses

Kim designed an experiment to show how heat can be transferred from one place to another. The steps of the experiment are shown below. Coat one end of an iron r

25 POINTS What is most likely the reason Lincoln repeats his declaration that "all persons held as slaves . . . shall be . . . free" in his Emancipation Proclam

How does changing great to epic affect tone a. More ImpressiveB. More user friendlyC.More amusingD. More realistic?

A rectangular quilt is 5 feet wide and 7 feet long. How many feet of lace are needed to cover the edges of the quit?

How to calculate confidence interval with standard deviation?

Insulin and glucagon are both hormones that work opposite of eachother explain what each of these hormones regulate ???