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
lorasvet [3.4K]
3 years ago
11

Please help with these two questions ASAP, will give BRAINLIEST!

Mathematics
2 answers:
algol133 years ago
7 0
Let me try my best to help you out :) ❤️

A) if the area of the square is 81, than that will mean that the length of all the sides are 9. You find the Perimeter by adding up all of the sides. So that will mean you do 9+9+9+9 which equals 36.

B) The diagonal that I got for the square is 12.728. The formula to find the diagonal is d=a sqrt 2.

Hope this helps!
OlgaM077 [116]3 years ago
3 0

Step-by-step explanation:

write what you know

square- all sides are equal

area of a square

A = L x W

where A = 81

L = sqrt(81)

W = sqrt(81)

perimeter the length around the square

P = sum of all sides

you can find hypotenuse using pythagorean thm

c=sqrt( L^2 + W^2)

You might be interested in
How to identify the parent function given an equation ?
Anettt [7]

Answer:

You can identify the parent function by making the equation into its simplest form.

Step-by-step explanation:

Remove all transformations from the equation (such as plus/minus signs, constants, and extra terms in the equation).  

ex. y= -3x^2+15

The parent function would be y=x^2 after removing everything.

Hope this helps! :)

8 0
3 years ago
Convert to inches: 11 feet
GREYUIT [131]
Your answer would be ( A ) 132 inches
6 0
3 years ago
Read 2 more answers
Dustin has only nickels and quarters in his piggy bank. He has 49 coins total for a combined value of $8.85. How many of each ty
eduard
Well obviously quarters equal 25 cents.  So you have to divide the 8.85 by 25 first.  That means he could have 35 quarters.  That least the rest as being dimes.  So find the remaining amount of the 8.85.  If you have 35 quarters that's $8.75.  And 8.85 minus 8.75 is 10 cents.  which would be 2 nickels.  That only adds up 37 coins.  So you break down one of the 25.  That would mean 5 more coins could be nickels.  Add 37 and 5 to get 42.   Do it again.  25 cents in nickels would be 5 more coins.  would be 46.  that would be missing 2 coins. But don't forget you're also subtracting from the 35 quarters. Now you would technically have 12 nickels and 33 quarters.  So you can do it one more time.  32 quarters means there is $8 in quarters at this point.

Now add you have 12 nickels, and you made 5 more.  That's 17 nickels.  That equals 85 cents.  So add 17 and 32 to be sure you have 49 coins, which you do. 


So 17 nickels, 32 quarters to equal 49 coins and $8.85

(sorry some of it got mixed up above because I was forgetting to subtract the quarters from the total as I changed them to nickels, so pay attention to the end)
8 0
3 years ago
ASAP PLZ IM TIMED I WILL GIVE BRAINLIEST ​
katrin [286]

Step-by-step explanation:

{ \huge{ \red{ \bf( \frac{3}{4} ) {}^{3} }}}

{ \huge{ \blue{ \bf{( \frac{3 \times 3 \times 3}{4 \times 4 \times 4} )}}}}

{ \large{ \pink{ \boxed{ \tt{ \bigg( \frac{27}{64} { \bigg)}}}ans.}}}

3 0
2 years ago
The Length of a rectangle exceeds its breadth by 9 cm. if length and breadth are each increased by 3 cm, the area of new rectang
gizmo_the_mogwai [7]

Answer:

Breadth = 8 cm

Length = 17 cm

Step-by-step explanation:

Given rectangle:

Breadth = x cm

Length = x + 9 cm

Area = length * breadth

        = x * (x + 9)

       = x² + 9x

Rectangle with length and breadth increased:

Breadth = x + 3 cm

Length = x + 9 + 3 = x + 12 cm

Area = 84 + (x² + 9x) cm²

(x +3) * (x +12) = 84 + x² +  9x

Use FOIL method

x*x  + x*12 + 3*x + 3*12 = 84 + x² + 9x

      x² + 12x + 3x + 36  = 84 + x² + 9x  {add the like terms}

             x² + 15x  + 36  = 84 + x² + 9x

x² + 15x + 36 - 84 - x² - 9x = 0

      6x - 48 = 0

             6x = 48

             x = 48/6

        x = 8

Breadth = x = 8 cm

Length = x + 9 = 8 +9 = 17 cm

7 0
3 years ago
Other questions:
  • The length of a rectangle is 4 feet more than the width. If the perimeter is 20 ft. What is the length of the rectangle?
    12·1 answer
  • Find the nth term of this quadratic sequence 4 7 12 19 28
    7·1 answer
  • John and Lexi are playing a marble game according to the rules for points are awarded for points are awarded for each red marble
    9·1 answer
  • A driver averaged 49 miles per hour and took 10 hours to travel between two cities. What is the distance between the two cities
    11·1 answer
  • Help!! I will give brainiest
    6·2 answers
  • Who was jesus christ? wrong answers only
    8·2 answers
  • 10. A small plane was scheduled to fly from Atlanta to Washington, D.C. The plane flies at a constant speed of 230 miles per
    11·1 answer
  • Please help me out with this please and thank you <br><br> No links no stealing points
    6·1 answer
  • Please help me with this question I really need help!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • What are the domain and range of the function represented by the set of
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!