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
ElenaW [278]
3 years ago
8

The width of a rectangle measures (6.9a+8.5)(6.9a+8.5) centimeters, and its length measures (3.8a+9.8)(3.8a+9.8) centimeters. Wh

ich expression represents the perimeter, in centimeters, of the rectangle?
Mathematics
1 answer:
Colt1911 [192]3 years ago
5 0

Answer:

P = (21.4a+36.6) cm

Step-by-step explanation:

Given that,

The width of a rectangle, b = (6.9a+8.5) cm

The length of a rectangle, l = (3.8a+9.8) cm

We need to find the perimeter of the rectangle. Perimeter is the sum of all sides. So,

P = 2(l+b)

Put all the values,

P = 2(6.9a+8.5+3.8a+9.8)

= 2(6.9a+3.8a+8.5+9.8)

= 2(10.7 a+18.3)

= (21.4a+36.6)

So, the perimeter of the rectangle is (21.4a+36.6) cm.

You might be interested in
The base of a rectangular prism has an area of 888 square meters. The height of the rectangular prism is 555 meters.
andriy [413]
If you want to find the volume, multiply the area of the base by the height. In this problem it would be 888*555, which is equal to 492,840
7 0
3 years ago
Marcus has a square shaped garden that has an area of 4(x^2-y^2) square feet. If the garden has four equal sections, what is the
SpyIntel [72]

Answer:

x^2-y^2

Step-by-step explanation:

took a quiz and got it right

8 0
3 years ago
The original price of a computer is $489.00. it is discounted 30%. find the selling price ​
Yanka [14]

Answer:

$342.30

Step-by-step explanation:

The original price of the computer is $489. The computer is discounted 30%, which means that 30% of the price is removed from the original price.

30% of 489 is

489 * 0.3 which is $146.7

146.7 is the discounted amount, not the selling price. To find the selling price, subtract how much is discounted ( 146.7) from the original price (489).

489-146.7= 342.3

3 0
2 years ago
I need help knowing how to do the problem
Vlad1618 [11]
Volume of a cone = pi * r² * (h/3)

If your diameter is 2, then take half of that for the radius; your radius is 1

Now plug in your given info:

V = pi * (1)² * (7/3)
= pi * 1 * (7/3)
= 7pi / 3

V ≈ 7.3304

Your answer is option D. 
8 0
4 years ago
Can someone please answer?
Lady_Fox [76]

Answer:

Volume = 803.84 cubic inches

Step-by-step explanation:

Volume = πr²h

= 3.14 x 8 x 8 x 4

= 3.14 x 256

= 803.84 cubic inches

7 0
3 years ago
Other questions:
  • TRUE OR FALSE PICTURE IS SHOWN
    11·2 answers
  • Solve the system of equations y=3x+2 y=x2-4x+2​
    14·1 answer
  • - 2x (a+h)^2+4(a+h)-12
    7·1 answer
  • Identify the property: 15(1) = 15
    9·2 answers
  • What is the diameter of this circle if the circumference is  inches?   in.​
    7·1 answer
  • Help me plz will mark brainliest
    15·1 answer
  • I need help with this question plz
    5·1 answer
  • 50 POINTS !!<br><br><br> PLEASE HELP !! ILL GIVE BRAINLIEST TO THE RIGHT ANSWERS.
    14·2 answers
  • Can anyone please help me with this!!! :(
    11·2 answers
  • Please help i will mark brainliest
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!