All categories

3 years ago

Simplify (5x+3y)^2-(5x-3y)^2-60xy

Mathematics

1 answer:

elena-14-01-66 [18.8K]3 years ago

7 0

Answer:

hope this answer will help u.

Step-by-step explanation:

( 5x + 3y )² - ( 5x - 3y )² - 60xy

= ( 25x² + 30xy + 9y²) - ( 25x² - 30xy + 9y² ) - 60xy

= 25x² + 30xy +9y² - 25x² + 30xy - 9y² - 60xy

= 60xy - 60xy

= 0

You might be interested in

Joes apple weighs 4/5 martas apple weighs 0.5 how much more does joes weigh than martas

FromTheMoon [43]

Answer:

0.3

Step-by-step explanation:

4/5=0.8

0.8-0.5=0.3

6 0

3 years ago

Read 2 more answers

This oblique circular cone has a radius of 5\text{ m}5 m5, start text, space, m, end text and a height of 6\text{ m6 m6, start t

zysi [14]

Answer:

$157 m^{3}$

Explanation:

Volume = 1/3(area of base) times height. 1/3(PI X R(squared)) X height. 1/3 x 3.14 x 25 x 6 = 157

Hope this helps and have a great day/night!

-grey

4 0

2 years ago

Read 2 more answers

Helppp i dont get it

sasho [114]

Answer: Your answer will be 8 s = (8,3) but since there isn’t no 3 for your answers choice then it should be 8! Hope this help!

6 0

2 years ago

Ellie borrows money at a year simple rate of 6 1/2% after 4 years ellie owes 39 interest

kupik [55]

Answer: Ellie borrowed $150.

Step-by-step explanation:

I = PRT

39 = P x 0.065 x 4

39 = P x 0.26

Divide both sides by 0.26

150 = P

6 0

2 years ago

A mattress store in Stafford purchased a mattress at a cost of $255 and marked it up 100%. Later on, Cassie bought the mattress.

skad [1K]

Answer: 278.18

sorry if it's wrong

Step-by-step explanation: if you divide 255 by 11 you get 23.18181818181

so if you simplify you get 23.18 so that is the tax plus the original payment which is 278.18

8 0

2 years ago

Read 2 more answers