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
Fantom [35]
3 years ago
14

Scale factor: 1:4

Mathematics
1 answer:
mojhsa [17]3 years ago
5 0

Answer:

<em>The area of the real object is 480 square cm</em>

Step-by-step explanation:

<u>Scaling</u>

Objects can be represented in a reduced or augmented size by using scaling which is basically multiplying or dividing by a constant factor.

The scale factor (f) converts a real dimension (x) into a scaled dimension (y) and vice-versa and is computed as:

\displaystyle f=\frac{x}{y}

If the magnitudes are areas, the scaling factor is squared:

\displaystyle f^2=\left(\frac{x}{y}\right)^2

And for volumes:

\displaystyle f^3=\left(\frac{x}{y}\right)^3

If the scale factor is 4, the area of a 30 square cm object is scaled to:

30 * 4^2 = 480

The area of the real object is 480 square cm

You might be interested in
The formula d=rt relates three quantities distance (d) rate (r) and time (t)
polet [3.4K]
B)5

c) aprox. 55.5 or 55.6
7 0
3 years ago
Read 2 more answers
HELP ME PLEASE WILL GIVE BRAINLIEST JUST HURRY GOT UNTIL TMRW AND ITS LATE LOL
antiseptic1488 [7]
Sergio will buy first! He is earning more than Lia per week, and it would take him about 34 weeks and he’d haves little money left over by that time :)
8 0
3 years ago
Read 2 more answers
Please help 50 points!<br> Simplify the expressed
LenKa [72]

Answer:

Step-by-step explanation:

\frac{x^{2} -x-12}{x+4} * \frac{2x^{2}-32 }{x^{2} -8x+16}  rewrite as multiplication

\frac{x^{2} +3x-4x-12}{x+4} * \frac{2(x^{2}-16) }{x^{2} -8x+16}  look to factor

\frac{x(x+3)-4(x+3)}{x+4} * \frac{2(x-4)(x+4) }{(x-4)^{2}}  , difference of 2 squares and perfect square

\frac{(x+3)(x-4)}{x+4} * \frac{2(x-4)(x+4) }{(x-4)^{2}}, finish factoring and simplify

2(x+3)

3 0
3 years ago
What is 1/3(2/5-2/3w) in expanded form
Ray Of Light [21]
Just distribute! its 2/15 - 9/25w

8 0
3 years ago
The following graph shows a seventh-degree polynomial:
LenaWriter [7]
Part 1: The zeroes are -5 with a multiplicity of 2, -1 with a multiplicity of 1, 4 with a multiplicity of 3, 7 with a multiplicity of 1.

Part 2: The possible factored form of the function is (x + 8)^2(x + 1)(x - 4)^3(x - 7)
5 0
3 years ago
Read 2 more answers
Other questions:
  • Wags eat 3/4 of a cup each day . How many full day will a bag with four cups last?
    13·2 answers
  • Number 2 and maybe the middle paragraph if you can
    10·2 answers
  • Which system of equations has a solution of approximately (1.8,-0.9)
    14·2 answers
  • A footballer scores in one out of five matches. What percentage of the matches does the footballer score in?
    5·1 answer
  • Compute the standard deviation of the following set of data to the nearest whole number:
    7·1 answer
  • PLEASE HELP DUE IN 1 HOUR, AND PLEASE DON'T PUT THOSE LINKS OR ELSE I WILL REPORT YOU.
    9·2 answers
  • A boat leaves the entrance to a harbor and travels 150 miles on a bearing of N 59° E. How many miles north and how many miles ea
    7·2 answers
  • How many 1/16 pound servings are there in a bag of almonds that weighs 3/4 pound
    7·1 answer
  • 5 There are 5 times as many chickens as horses on a farm.
    14·1 answer
  • Quadrilateral A’B’ C’ D ‘ is the result of reflecting quadrilateral ABCD across line l
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!