tayacall5731 tayacall5731

01-09-2018
Mathematics

contestada

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?
a. 4
b.14
c. 16
d.20
e. 50

Respuesta :

Аноним Аноним

01-09-2018

3x^2 - 2y
2x^2 - 3y

First expression

3(3)^2 - 2(5) = 3(9) - 10
27 - 10 = 17

Second expression

2(3)^2 - 3(5) = 2(9) - 15
18 - 15 = 3

17 - 3 = 14

B. 14

Answer Link

Otras preguntas

which should i choose

The slope-intercept form of the equation of a line that passes through point (–2, –13) is y = 5x – 3. What is the point-slope form of the equation for this line

if 1/y=√2x+1/x-1, find x in terms of y

Add.-6+(-7)= please help explain your answer please

To stay abstinent, one should __________. A. practice refusal skills B. practice avoidance techniques C. set limits and stick to them D. all of the above Pl

what came about in the devonian period

Read the following excerpt from The Grapes of Wrath by John Steinbeck: And men with hoses squirt kerosene on the oranges, and they are angry at the crime, angry

1.Country A makes most of its money exporting grape and grape-related products, like jellies and juices. Country B also exports grapes, but in addition, it expo

Who could you talk to if you were concerned about your own mental health or that of a loved one?

20 grams of water. She poured out 15 grams. Which of the following physical properties of the water changes? A .Boiling point B. Density C .Electrical conduct