officialtyree8886 officialtyree8886

15-01-2020
Mathematics

contestada

Jane evaluates x2 – 3x + 5 for x = –2 below. Step 1: (–2)2 –3(–2) + 5 Step 2: = –4 + 6 + 5 Step 3: = 7 What, if any, was Jane’s mistake?

Respuesta :

prozehus prozehus

16-01-2020

Answer:

The jane's mmistake is

[tex](-2)^{2}=(-2)*(-2)=4[/tex]

Step-by-step explanation:

It has to [tex]x^{2} -3x+5\\x=-2\\(-2)^{2}-3(-3)+5\\4+6+5=15[/tex]

Answer Link

Otras preguntas

How did other European nations respond to German imperialism and militarism before World War I? They ignored Germany's militarism and imperialism in an effort t

Why did the number of strikes greatly increase in the years immediately following World War I? The Ku Klux Klan engaged in criminal activity against workers. Ac

Find the solution set for the open sentence with the given replacement set. 4y + 2 = 18, {4, 5, 6, 7}

61% of 180 ? 5.1% of 81 ? 16 1/2% of 36 ? 81% of 241 ? 76% of 600 ? 88% of 680 ? 37% of 481 ? 19.1% of 380 ? 41% of 321 ? 33% of 331 ?

Which statement describes Nicholas Copernicus's most famous contribution to science? A. He improved the telescope, thermometer, and compass and challenged Ptole

in Tartuffe which character represents the voice of reason? a)Laurent b)Tartuffe c)orgon d)cleante

three times the sum of a number and 3 is -18 (equation )

Which object had more potential energy when it was lifted to a distance of 10 meters? Show your calculation. (Remember that gravity = 9.8 m/sec2)

The mestizo resulted from?

What is the percent 200% of 54