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
weeeeeb [17]
3 years ago
9

Hellllpppppp meeeee :3

Mathematics
1 answer:
spayn [35]3 years ago
5 0

ANSWER : A= 3r^2 {r<u>></u>0}

1. square both sides

2. Expand

3. solve 3^2= A/3 :  A= 3r^2

4. A=3r^2

5. Verify solutions

You might be interested in
Change x + 2y = 6 into slope-intercept form.
mart [117]

Answer:

The slope intercept form involves solving for y, such that the equation looks like this: y = mx + b, where m is a constant representing the slope of the line, and b is a constant representing the value of the y-intercept.

Starting with the equation x+2y=6 and subtracting x from both sides gives 2y =  -x + 6.

If we then divide each term by 2, we get the final result of y = -1/2x + 3.

Here we see that the slope (m) is equal to -1/2, and the y-intercept (b) is 3.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
It is given that 2(3+x)=6+2x. this is an example of the ____ property.
hoa [83]
I believe this is the distributive property.
6 0
4 years ago
Read 2 more answers
What is the x- intercept of y+ 12 =3 (x-9)?
Natalija [7]

Answer:

13,0

Step-by-step explanation:

12=3(x-9)

divide both sides by three

4=x-9

add 9 to both sides

x=13

so, the x intercept is (13,0)

7 0
3 years ago
Read 2 more answers
The sides of a right triangle are x, x+21, and x+27. what is the length of the hypotenuse
mina [271]
Answer: 51 uinits

The three numbers are x , x + 21 and x + 27. 
The greatest of the 3 numbers is x + 27, so x + 27 has to be the hypotenuse.

----------------------------------------------
Pythagoras Theorem
----------------------------------------------

a² + b²  = c²

x² + (x+21)² = (x+27)²

x² + x² + 42x + 441 = x² + 54x + 729

x² - 12x -288 = 0

(x - 24)(x + 12) = 0

x = 24 or x = -12 (rejected, length cannot be negative)

----------------------------------------------
Find hypotenuse
----------------------------------------------
 Hypotenuse = x + 27 = 24 + 27 = 51 units

-----------------------------------------------
Answer: 51 units
----------------------------------------------

3 0
4 years ago
Read 2 more answers
3(y-1)=y-11 plz solve this equation with explaination
stellarik [79]
3(y-1)=y-11

Distribute:
3y - 1 = y- 11

Add 11 to both sides

3y - 12 = y

subtract 3y on both sides

-12 = -2y

Divide by 2y

y= 6
3 0
3 years ago
Read 2 more answers
Other questions:
  • (31 x 15) + (108 divided by 6)=
    7·2 answers
  • 5|9-5n|-7=38 how do I solve this
    9·1 answer
  • Please answer fast i really need this
    9·1 answer
  • george buys 6 apples. Arlene asks if george has the IQ of a fish. He tells her she looks like corned beef hash. Arlene beats Geo
    8·1 answer
  • (11x+9)+(5x-9) pls solve this for me I have no clue and i need this fast
    9·1 answer
  • 5. A factory conveyor has an angle of
    7·1 answer
  • Can someone please help with . Thank u
    13·1 answer
  • Anyone able to answer this?
    9·2 answers
  • 1/2(8a+200b)<br><br> Is the answer 4a+100b?
    8·2 answers
  • A chef has 2 blocks of butter. Each block weighs 1 pound. She cuts each block into fifths
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!