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
Oksi-84 [34.3K]
3 years ago
15

The scale drawing of a rectangular room will be enlarged by a scale factor of 4 to create the actual room. The actual area of th

e room will be 150 square feet. Which expression finds the area of the scale drawing?
Mathematics
1 answer:
bearhunter [10]3 years ago
6 0

Answer:

The expression is equal to \frac{150}{4^{2}}

The area of the scale drawing is 9.375\ ft^{2}

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its areas is equal to the scale factor squared

let

z------> the scale factor

x------> the area of the actual room

y-----> the area of the scale drawing

so

z^{2}=\frac{x}{y}

we have

z=4

x=150\ ft^{2}

substitute and solve for y

4^{2}=\frac{150}{y}

y=\frac{150}{4^{2}}=9.375\ ft^{2}

You might be interested in
What is the coordinate
Vadim26 [7]

Answer:

1 : to put in the same order or rank. 2 : to bring into a common action, movement, or condition : harmonize coordinate schedules She'll be coordinating the relief effort. 3 : to attach so as to form a coordination complex

6 0
3 years ago
7/30+9/20 what is the answer pls hurry im so confused
Svetradugi [14.3K]

Here is your answer:

  • \frac{7}{30} + \frac{9}{20}
  • Find common denominator:
  • 30 \times 20 = 60 /20 \times 30 = 60
  • Common denominator is 60:
  • \frac{7}{30} + \frac{9}{20} = \frac{140}{60} + \frac{270}{60}
  • 140 + 270 = 410
  • = \frac{410}{60}
  • \frac{410}{60} \div 2 = \frac{205}{30} \div 5 = \frac{41}{6}
  • = \frac{41}{6} or 6\frac{5}{6}

Hope this helps!

8 0
3 years ago
Fit a quadratic function to these three points:<br> (-2,8), (0, -4), and (4, 68)<br> Respuesta
zloy xaker [14]

Answer:

f(x) = 4x^2 + 2x - 4.

Step-by-step explanation:

Let the quadratic function be y = f(x) = ax^2 + bx + c.

For the point (-2, 8)  ( x = -2 when y = 8) we have:

a(-2)^2 + (-2)b + c = 8

4a - 2b + c = 8      For (0, -4) we have:

0 + 0 + c = -4   so c = -4.    For (4, 68) we have:

16a + 4b + c = 68  

So we have 2 systems of equations in a and b ( plugging in c = -4):

4a - 2b - 4 = 8

16a + 4b - 4 = 68

4a - 2b = 12

16a + 4b = 72    Multiplying 4a - 2b = 12 by 2 we get:

8a - 4b = 24  

Adding the last 2 equations:

24a = 96

a = 4

Now plugging a = 4 and c = -4 in the first equation:

4(4) - 2b - 4 = 8

-2b = 8 - 16 + 4 = -4

b = 2.

3 0
3 years ago
How can the order of operations be used to simplify expressions? Create your own unique example showing order of operations.
Lostsunrise [7]
10(13+12)=x thats a good one
4 0
3 years ago
I really need an answer as soon as possible. 10 pts worth it
viva [34]

Answer:

A. Correct: When we plug in g(x) for the x in f(x), we get H(x).

B. Correct: When we plug in g(x) for the x in f(x), we get H(x).

C. Correct: When we plug in g(x) for the x in f(x), we get H(x).

D. Correct: When we plug in g(x) for the x in f(x), we get H(x).

Step-by-step explanation:

<em>Brainliest, please!</em>

8 0
3 years ago
Other questions:
  • What is 15 and 3/5 % as a fraction in simplest form
    6·1 answer
  • An AISI 1040 cold-drawn steel tube has an OD 5 50 mm and wall thickness 6 mm. What maximum external pressure can this tube withs
    6·1 answer
  • 6 + x when x equals 3
    12·2 answers
  • What will happen if Pinocchio says "my nose will grow now" ??
    8·1 answer
  • What is the solution to the equation below?
    10·2 answers
  • Can someone Please help me with this ??
    6·1 answer
  • naomi has earned $54 mowing lawns the past two days. she worked 2 1/2 hours yesterday and 4 1/4 hours today. if naomi is pains t
    9·1 answer
  • What is the slope of the line that passes through the points (26, 7) and (-39, 12)?
    13·1 answer
  • One sixpack of soda has six cans. How many cans are there in six sixpacks of soda?
    11·2 answers
  • Help me please I need it by tommrow u get brai nlist
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!