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
yaroslaw [1]
4 years ago
13

Supriya is decorating her bedroom. She plans to hang strings of twinkle lights all the way around her walls. She measures the wa

lls and finds she will need 363636 meters of lights.
Which measurement did Supriya find?
Mathematics
1 answer:
dezoksy [38]4 years ago
7 0

Answer:

Supriya found the Perimeter of the bedroom.

Step-by-step explanation:

Supriya plans to hang the string of twinkle lights all the way around her walls. This is equivalent to making a boundary around the walls using the twinkle lights.

In geometry the boundary of a figure refers to its Perimeter. So, this means the measurement which Supriya found was the Perimeter of her room. Perimeter is defined as the sum of all the sides of a figure. Room is a 4-sided figure i.e. a quadrilateral, and most likely it will be in shape of a rectangle. Perimeter of a rectangle is calculated as:

Perimeter = 2 ( Length + Width )

So, the perimeter of Supriya's bedroom is 36 meters.

You might be interested in
Consider this scenario: The population of a city increased steadily over a ten-year span. The following ordered pairs show the p
vova2212 [387]

Answer:

Regression function: y=1986.406+0.0059x

The function predicts that population will reach 14,000 in year 2068.

Step-by-step explanation:

We have to determine a function y=b_0+b_1x_1 by applying linear regression. The data we have is 5 pair of points which relates population to year.

According to the simple regression model (one independent variable), if we minimize the error between the model (the linear function) and the points given, the parameters are:

b_0=\bar{y}+b_1\bar{x}\\\\b_1=\frac{\sum\limits^5_{i=1} {(x_i-\bar x)(y_i-\bar y)}}{\sum\limits^5_{i=1} {(x_i-\bar x)^2}}

We start calculating the average of x and y

\bar x=\frac{2500+2650+3000+3500+4200}{5}=\frac{15850}{5}=3170\\\\ \bar y=\frac{2001+2002+2004+2007+2011}{5}=\frac{10025}{5}=2005

The sample covariance can be calculated as

\sum\limits^5_{i=1} {(x_i-\bar x)(y_i-\bar y)}=(2500-3170)(2001-2005)+(2650-3170)(2002-2005)+(3000-3170)(2004-2005)+(3500-3170)(2007-2005)+(4200-3170)(2011-2005)\\\\\sum\limits^5_{i=1} {(x_i-\bar x)(y_i-\bar y)}=2680+1560+170+660+6180\\\\ \sum\limits^5_{i=1} {(x_i-\bar x)(y_i-\bar y)}=11250

The variance of x can be calculated as

\sum\limits^5_{i=1} {(x_i-\bar x)^2}=(2500-3170)^2+(2650-3170)^2+(3000-3170)^2+(3500-3170)^2+(4200-3170)^2\\\\\sum\limits^5_{i=1} {(x_i-\bar x)^2}=448900+270400+28900+108900+1060900\\\\\sum\limits^5_{i=1} {(x_i-\bar x)^2}=1918000

Now we can calculate the parameters of the regression model

b_1=\frac{\sum\limits^5_{i=1} {(x_i-\bar x)(y_i-\bar y)}}{\sum\limits^5_{i=1} {(x_i-\bar x)^2}}=\frac{11250}{1918000}=0.005865485  \\\\ b_0=\bar{y}+b_1\bar{x}=2005-0.005865485*3170=1986.406413

The function then become:

y=1986.406+0.0059x

With this linear equation we can predict when the population will reach 14,000:

y=1986.406+0.0059(14,000)=1986.406+82.117=2068.523

6 0
3 years ago
Please make x the subject for these questions
lana66690 [7]

Answer:

x=b+4a/a

x=7-7c/c

x=y(v+2)

4 0
3 years ago
Read 2 more answers
$2000 was invested for 3 years . it earned $204 in interest. what was the rate
goblinko [34]

Answer:it is $12,240

Step-by-step explanation:

given: principal=$2000

          time=3 years

           interest=$204

he genearal formular of RATE = I*P*T/100

from the formular= P*R*T( RATE WITH 100, because the  rate is calculated over 100)

=$204*3*$2000/100

=$12,240

8 0
2 years ago
Which point is on the line y = 1/2 x + 2?<br><br> A.(2, 4)<br> B.(2, 2)<br> C.(4, 4)<br> D.(4, 5)
KatRina [158]
<span>y = 1/2 x + 2 
if x = 4 then </span><span>y = 1/2 (4) + 2 = 2 + 2 = 4

(4,4)

answer
</span><span>C.(4, 4)</span>
5 0
3 years ago
Given a polynomial f(x), if (x + 3) is a factor, what else must be true?
aniked [119]
If we assume that (x + A) is a factor of p(x), Then
for x = -A, we get
p(-A) = 0
So for the factor (x + 3), if x = -3, then
p(-3) = 0
This is actually the zero product property and this must be true. I hope that the answer has come to your help.
3 0
3 years ago
Other questions:
  • What is 1027 +1151 in military time? I'm getting 22:16 which is 10:16 pm . Is this correct?
    7·1 answer
  • 9) There are six girls and 12 boys in Ms. Jeffry's environmental club. She wants to divide the students into groupS with the sam
    13·2 answers
  • Which expression can be used to determine the slope of the linear function graphed below?
    12·1 answer
  • Janet deducted $5 on Monday and another $6 on Tuesday from her savings account. write an expression that represents the change i
    6·1 answer
  • The sum of two numbers is 17 and their difference is 5 what are the two answers
    5·1 answer
  • Find the widest range of scores that you can get on a final exam in order to receive a grade of B for the class. Using interval
    11·2 answers
  • Find the gradient of the line segment between the points (8,6) and (10,14).
    7·1 answer
  • How would the fraction <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7%7D%7B1-%5Csqrt%7B5%7D%20%7D" id="TexFormula1" title="\frac{
    14·1 answer
  • Quadrilateral ABCD was dilated with the origin as the center of dilation to create quadrilateral EFGH on the graph below.
    5·2 answers
  • I need help!! Please help me
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!