1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Hitman42 [59]
3 years ago
7

(9y+5x) (9y-5x) Simplify your answer.

Mathematics
1 answer:
Alex777 [14]3 years ago
6 0

Answer:

81 {y}^{2}  - 25 {x}^{2}

Step-by-step explanation:

(9y+5x) (9y-5x) \\  \\  =  {(9y)}^{2}  -  {(5x)}^{2}  \\  \\  = 81 {y}^{2}  - 25 {x}^{2}

You might be interested in
Which expression is<br> equivalent to the following complex fraction?
tino4ka555 [31]

Answer:

(y - x)/(y + x)

Step-by-step explanation:

(1/x - 1/y)/(1/x + 1/y) =

= (1/x - 1/y)/(1/x + 1/y) × (xy)/(xy)

= (y - x)/(y + x)

8 0
2 years ago
Which ordered pairs cause this relation not to be a function? why? {(0, 0.5), (0.5, 1), (3, 1), (1, 6), (3, 2)}?
frosja888 [35]

Answer:

  (3, 1), (3, 2)

Step-by-step explanation:

Pairs that have the same x-value are not allowed in a relation that is a function.

3 0
3 years ago
Help I just learned how to do this and it’s so hard
Paladinen [302]

Answer: the answer is either the first one or the third not exactly sure

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
The equations x + 5 y = 10, 3 x minus y = 1, x minus 5 y = 10, and 3 x + y = 1 are shown on the graph below. On a coordinate pla
natita [175]

Answer:

The question is missing, so I will answer all the solution for each possible system of two equations.

Step-by-step explanation:

The equations

x + 5 y = 10 (red)

3 x - y = 1 (blue)

x - 5 y = 10 (green)

3 x + y = 1 (purple)

are shown in the picture atatched. The intersection between two lines is the solution of their system.

<u>system:</u>

x + 5 y = 10 (red)

3 x - y = 1 (blue)

<u>solution</u>: (0.938, 1.813)

<u>system</u>:

x + 5 y = 10 (red)

x - 5 y = 10 (green)

<u>solution</u>: (10, 0)

<u>system</u>:

x + 5 y = 10 (red)

3 x + y = 1 (purple)

<u>solution</u>: (-0.357, 2.071)

<u>system</u>:

3 x - y = 1 (blue)

x - 5 y = 10 (green)

<u>solution</u>: (-0.357, -2.071)

<u>system</u>:

3 x - y = 1 (blue)

3 x + y = 1 (purple)

<u>solution</u>: (0.333, 0)

<u>system</u>:

x - 5 y = 10 (green)

3 x + y = 1 (purple)

<u>solution</u>: (0.938, -1.813)

7 0
3 years ago
HELP ASAPPPPPPP!!!!!!!!!!!
kolbaska11 [484]

Answer:

x = 15

Step-by-step explanation:

you have a straight line and a straight line measures 180.  You have a 90 degree symbol.

180 = 90 + 47 + 2x + 13

180 = 150 + 2x  Subtract 150 from both sides of the equation

30 = 2x  Divide both sides by 2

15 = x

5 0
1 year ago
Other questions:
  • Gerald earns a base hourly rate of $8 per hour at his job. However, if he works more than 10 hours in a week, he earns $9 per ho
    7·2 answers
  • Help Help Help please!
    8·1 answer
  • 1) Triangle ABC is a similar to triangle QRS by the AA Similarity Postulate
    14·1 answer
  • Are the fractions 1/2 and 3/8 equivalent fractions
    14·2 answers
  • Mr. johnson was paid $190 for a job that required 40 hours of work. at this rate, how much should he be paid for a job requiring
    8·2 answers
  • 1
    8·1 answer
  • Review the table of a firefly population in a laboratory.
    14·2 answers
  • What is equal to 3 * 3 * 3 * 3 * 3​
    14·2 answers
  • -2y + 6 = -12<br><br> what is the answer??
    7·2 answers
  • The formula to find the curved surface area of the cone
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!