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
gregori [183]
3 years ago
13

a rectangle has length 3 cm greater than its width.it has an area of 28cm squared,find the dimensions of the rectangle

Mathematics
1 answer:
marysya [2.9K]3 years ago
3 0
Let w be the width
And let h be the length
h = w + 3

w * h = 28
w(w+3) = 28
w^2 + 3w = 28
Use a calculator (or use the quadratic formula) to get w=4

To find h, just add w by 3.
You get 7.

The dimensions of the rectangle is 4 by 7 cm.

Have an awesome day! :)
You might be interested in
Please help me . Need it desperately for a math test
attashe74 [19]

Answer:

Step-by-step explanation:

Given

y = 3x + 2

Comparing with y = mx + c

slope (m) = 3

y-intercept (c) = 2

7 0
3 years ago
Read 2 more answers
Which means 30 is the product of 6 and a number b
Sav [38]
Just divide 30 by 6 and you get b=5
7 0
3 years ago
Given the exponential decay function
pogonyaev
The answer is a I hope this helps your welcome
5 0
2 years ago
Expand and simplify (6x-2)^2<br>​
IgorLugansk [536]

Answer:

\sf 36x^2 -24x +4

solving step wise:

\sf (6x-2)^2

\sf (6x-2)(6x-2)

\sf 36x^2 -12x -12x +4

\sf 36x^2 -24x +4

or

\sf (6x-2)^2

\sf (6x)^2 +2*6x*-2+(-2)^2

36x^2 -24x +4

4 0
2 years ago
Read 2 more answers
the table shows the balance of a money market account over time. write a function that represents the balancr y (in dollars) aft
Solnce55 [7]

Answer:

y = 1500 * 1.09^t

Step-by-step explanation:

It should be clear that the rate of change is non-linear, meaning that we can express the function in the following manner

y = a * b^t, where a is the initial value and b is the rate of change and t is how many years.

Well, year 0 is the rate of change so we can say that a = 1500

Next, we divide any two consecutive year balances to find our rate of change:

1635/1500 = 1.09

Therefore, our equation looks like this: y = 1500 * 1.09^t

6 0
3 years ago
Other questions:
  • FIRST ANSWER GETS BRAINLIEST solve 4x-9y=11 for y
    12·1 answer
  • Line AB contains points A(4, 5) and B(9, 7). What is the slope of AB?
    10·1 answer
  • A random group of 5 boys and a random group of 5 girls were selected to determine whether boys or girls text more. The table sho
    5·2 answers
  • I can’t get the answer and I don’t get it?
    11·2 answers
  • Solve each inequality.
    7·1 answer
  • A line has a rise of 6 and a slop of 1/20<br> What is the run?
    7·2 answers
  • Please help me with this question! Thank you :)
    8·1 answer
  • Points!!!!!!!!!!!!!!!!!!!!!!
    10·2 answers
  • Evaluate 1/4|−x+6|−7 when x = 18
    12·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Cfrac%7B9%7D%7B2%7D%20%2B%5Cfrac%7B1%7D%7B2%7D" id="TexFormula1" title="\frac{9}{2} +\frac{1
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!