All categories

3 years ago

The answer is correct? If it’s wrong please explain me how to solve it :’)

Mathematics

1 answer:

cricket20 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

x = -2 y =3

3x² - 2xy²

3(-2)² -2(-2)(3)²

square first

3*4 -2(-2)*9

multiplty from left to right

12-2(-2)*9

multiply from left to right again

12 -(-36) subtract using rule for integers that double minus is plus

12 + 36

You might be interested in

Charlotte has 12 t shirts.one fourth of her t shirts are green. How many of charlottes t shirts are green?

ella [17]

3 T shirts. 12 divided by 4.

7 0

3 years ago

Read 2 more answers

Reuben bought 5CDS that were each the same priceIncluding sales tax, he paid a total of \$81.50. Each CD had a tax of $0.60. wha

Liula [17]

Answer:

The price of each CD before tax is $15.70

Step-by-step explanation:

Given that:

Number of CDs bought by Reuben = 5

Cost of five CDs = $81.50

Sales tax on each CD = $0.60

Sales tax on 5 CDs = 0.60*5 = $3.00

Price of CDs without tax = 81.50 - 3.00 = $78.50

Price of each CD = $\frac{Cost\ of\ CDs}{No.\ of\ CDs}$

Price of each CD = $\frac{78.50}{5}$

Price of each CD = $15.70

Hence,

The price of each CD before sales tax is $15.70

7 0

3 years ago

The perimeter is 22 how much bigger is the longest side than the shortest side

____ [38]

2 is the shortest and 11 is the longest

3 0

3 years ago

How to find the mean of a fraction

NeX [460]

Answer:

To find the average of a set of fractions,add all fractions, then divide the sum by the number of fractions as follows: Convert the integers and mixed numbers to improper fractions.

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

Solve using elimination. 4x − 7y = 19 5x − 7y = 15

Likurg_2 [28]

Answer:

Point Form: (-4, -5)

Equation Form: x = -4, y = -5

Step-by-step explanation:

Add the equations in order to solve for the first variable. Plug this value into the other equations in order to solve for the remaining variables.

Brainliest Please!!!!!

- Hermionia

8 0

3 years ago