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
Iteru [2.4K]
3 years ago
8

A rectangle has a length of 12 centimeters and a width of 4 centimeters. Find the perimeter.

Mathematics
2 answers:
mamaluj [8]3 years ago
4 0

Answer:


Step-by-step explanation:

Given:

Length (l) = 12 cm

Width (w) = 4 cm

Perimeter of the rectangle = 2(l + w) units

<em>P</em> = 2(12 + 4)

<em>P</em> = 2 (16)

<em>P</em> = 32

<h2><u><em>32 cm</em></u></h2>
Nookie1986 [14]3 years ago
4 0
The answer is D. 32 cm
You might be interested in
Elena rode her bike 2 miles in 10 minutes. She rode at a constant speed. Complete the table to show the time it took her to trav
Komok [63]

Answer:

0.2

Step-by-step explanation:

2/10 or 1/5

6 0
2 years ago
Read 2 more answers
Solve the quadratic equation below for the exact values of x.<br><br> 4x² - 5 = 75
vfiekz [6]

Answer:

x = ±2√5

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u> </u>

<u>Algebra I</u>

  • Terms/Coefficients
  • Multiple Roots

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

4x² - 5 = 75

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Addition Property of Equality] Add 5 on both sides:                                    4x² = 80
  2. [Division Property of Equality] Divide 4 on both sides:                                  x² = 20
  3. [Equality Property] Square root both sides:                                                    x = ±2√5
8 0
3 years ago
Read 2 more answers
FIND THE SUM OF 20 TERMS OF THE ARITHMETIC SERIES IN WHICH 3rd TERM IS 7 AND 7th TERM IS 2 MORE THAN THREE TIMES ITS 3rd TERM
algol13

Answer:

740

Step-by-step explanation:

The n th term of an arithmetic series is

a_{n} = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Given a₃ = 7 and a₇ = (3 × 7) + 2 = 21 + 2 = 23 , then

a₁ + 2d = 7 → (1)

a₁ + 6d = 23 → (2)

Subtract (1) from (2) term by term

4d = 16 ( divide both sides by 4 )

d = 4

Substitute d = 4 into (1)

a₁ + 2(4) = 7

a₁ + 8 = 7 ( subtract 8 from both sides )

a₁ = - 1

The sum to n terms of an arithmetic series is

S_{n} = \frac{n}{2} [ 2a₁ + (n - 1)d ] , thus

S_{20} = \frac{20}{2} [ (2 × - 1) + (19 × 4) ]

     = 10(- 2 + 76) = 10 × 74 = 740

8 0
3 years ago
Plz answer all these questions for me I really need help
Ber [7]
A is 400

E I don't know soory
4 0
3 years ago
Which equation is represented by the table?<br>​
Papessa [141]

Answer:2

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • How many fourths are in 5 1/2?
    12·1 answer
  • Please help asap !
    11·1 answer
  • What is the distance between the origin and the point (5, 12)? If necessary, round your answer to two decimal places.
    6·1 answer
  • A line passes through (–1, 5) and (1, 3). Which is the equation of the line?
    12·1 answer
  • 15 points! Thanks so much!!
    8·2 answers
  • 2
    10·2 answers
  • Solve for y: 7+ 2(x + y) = 11
    10·1 answer
  • Can someone please urgently help me with this
    7·2 answers
  • If f(x)=-x+2, find f(4)
    13·1 answer
  • Geometry question need explanation on finding the answer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!