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
Lyrx [107]
3 years ago
15

Each side of a square is increasing at a rate of 7 cm/s. at what rate is the area of the square increasing when the area of the

square is 81 cm2?
Mathematics
1 answer:
valentina_108 [34]3 years ago
8 0
Consider this option:
1. initial_area_sq=a²=81 (where a - the length of the side), it means, that a=9 cm.
2. according to the condition new_a=a+7=9+7=16 cm.
new area_sq=(new_a)²=256.
3. new_area_sq / initial_area_sq = 256/81≈3.160494.or 316.0494%.
You might be interested in
Will give the brains of me brains and my brains and maby ur brain to u how many brains can i give u if u ask this quetion right?
kogti [31]

Answer: 1.6

Step-by-step explanation:

This data set is 0,1,2,2,3.  Thus, you can calculate the mean by doing (0+1+2+2+3)/5=1.6

Hope it helps <3

6 0
4 years ago
Read 2 more answers
30 POINTS!
Goshia [24]

Answer:

The correct answare would be 3.54 x 10^22 N  

7 0
3 years ago
Which subtraction expression does the number line model show ​
loris [4]

Answer:

13-+4

Step-by-step explanation:

3 0
3 years ago
I have a two digit number the sum of the digits is 12 the first digit is 4 Less Than 3 times the second what is my number​
nignag [31]

Answer:

84

Step-by-step explanation:

Let the first digit = x

Let the second digit =y

x + y = 12

x + 4 = 3*y

===========

From the second equation, we learn that x = 3y - 4

Put that into the first equation.

3y - 4 + y = 12          Combine the left side

4y - 4 = 12                Add 4 to both sides

4y = 16                     Divide by 4

4y/4 = 16/4        

y = 4  

=================

x + 4 = 12

x + 4 - 4 = 12-4

x = 8

So the number is 84

3 0
3 years ago
Write an equation of the line that has a slope of 3 and contains the point (2,5) in point-slope for
enot [183]
The equation would be y=3x-1

Point Slope Formula: 

y - y1 = m(x - x1)

y - 5 = 3(x-2)
y - 5 = 3x - 6
  + 5        + 5
--------------------
y = 3x - 1


8 0
4 years ago
Read 2 more answers
Other questions:
  • Madison has to read a book that is 260 pages. Her mom says she can take a break when she is 30% finished. How far does she need
    14·2 answers
  • OK can someone help me on this one...?
    14·1 answer
  • Does anyone know the answer?
    12·1 answer
  • Suppose that in one of your classes you are given 20 questions, and are told that the final exam will consist of 8 of them. Supp
    7·1 answer
  • SOMEONE HELP PLS I NEED HELPPPPPPP
    6·1 answer
  • Sadie is going to a carnival that has games and rides. Each game costs $1 and each ride costs $3.50. Sadie spent $28.50 altogeth
    15·2 answers
  • Will mark brainliest+ 10 points
    6·1 answer
  • Please help thank you 5th grade math
    13·1 answer
  • I NEED HELP ASAP!!!!!!!!!! Rylie paid $12 for two cans of racquetballs as shown in the tape diagram, where the green bars repres
    7·1 answer
  • Study the dashed arrows in the image.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!