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

The length of a storeroom is 4and3/5 meters.the storerooms width is 3/4 meter shorter than its length. What is the perimeter of the storeroom?

Which of the following are equivalent ratios? 15 to 20 6 to 8 8 to 12 9 to 12

The influence of the Amarna period is evident in the work done for which Pharaoh? Khafre Hatshepsut Ramses II Tutankhamen

Which two ideas influenced key members of Russia’s noble class while they were living abroad during the Napoleonic Wars?

Ben is a tour guide at museum. each tour group can have no more than 7 people/ If Ben give tours to 66 people . How many tours will he give?

What prevented East Germany from participating in the Marshall Plan, despite being offered economic assistance? A. a lack of support from West Germany B.the Sov

how to write this the world is dangerous today

What two colors make pink?

In December, the average total rainfall in all the deserts together is 0.89 mm. Explain how to use the fiqures from the table to write a comparsion of the tota

which literary movement began after the early american and colonial period