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
Grace [21]
2 years ago
13

A rug shaped like a rectangle is 2.5 meters long and 1.8 meters wide what is the perimeter in meters of the rug

Mathematics
1 answer:
Novosadov [1.4K]2 years ago
6 0

Answer:

P = 8.6 m

Step-by-step explanation:

Given that,

The length of a rectangle = 2.5 m

The width of a rectangle = 1.8 m

We need to find the perimeter of the rug. The perimeter of a rectangle is given by :

P=2(l+b)

= 2(2.5+1.8)

= 8.6 m

So, the perimeter of the rug is 8.6 m.

You might be interested in
Among freshman at a certain university, scores on the Math SAT followed the normal curve, with an average of 550 and an SD of 10
lina2011 [118]

Answer:

a) 6.68th percentile

b) 617.5 points

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 550, \sigma = 100

a) A student who scored 400 on the Math SAT was at the ______ th percentile of the score distribution.

Z = \frac{X - \mu}{\sigma}

Z = \frac{400 - 550}{100}

Z = -1.5

Z = -1.5 has a pvalue of 0.0668

So this student is in the 6.68th percentile.

b) To be at the 75th percentile of the distribution, a student needed a score of about ______ points on the Math SAT.

He needs a score of X when Z has a pvalue of 0.75. So X when Z = 0.675.

Z = \frac{X - \mu}{\sigma}

0.675 = \frac{X - 550}{100}

X - 550 = 0.675*100

X = 617.5

6 0
3 years ago
What is the value of x
sergey [27]
X = 7 / sin(45)

x = 7 / sqrt(2)/2

x = 7 sqrt(2)
4 0
3 years ago
Read 2 more answers
Simplify (m^3)^6/m^18
Nezavi [6.7K]

Step-by-step explanation:

b = 1........... .. ...... .

7 0
3 years ago
Triangle Congruence Theorems
elixir [45]

Triangle Congruence Theorems

Use the triangle congruence theorems below to prove that two triangles are congruent if:
Three sides of one triangle are congruent to three sides of another triangle (SSS: side side side)
Two sides and the angle in between are congruent to the corresponding parts of another triangle (SAS: side angle side)
Two angles and the side in between are congruent to the corresponding parts of another triangle (ASA: angle side angle)
Two angles and the non-included side of one triangle are congruent to the corresponding parts of another triangle (AAS: angle angle side)
The hypotenuse and leg of one right triangle are congruent to the corresponding parts of another right triangle (HL: hypotenuse leg)
3 0
3 years ago
A middle school principal wants to change the lunch menu at the school. The principal surveys the students to determine how the
natita [175]

Answer:

B: Survey 3 randomly selected students from every homeroom.

Step-by-step explanation:

This would be the best way to survey, because all the others have some sort of variable. The principle doesn't know who buys lunch and who doesn't, so why would he just ask kids who ride in a car as there are kids who ride buses, or only 7th grade students, so the best answer would be something that everyone has, like homeroom.

4 0
3 years ago
Read 2 more answers
Other questions:
  • {3x=7y=5<br> {5x-2y=-19
    13·1 answer
  • Is the equation below written in standard form? If not, select which explanation best applies to why the equation
    8·1 answer
  • Glven: 3x &lt; 9.<br> Choose the solution set.
    13·2 answers
  • In the figure, lines I and mare parallel lines cut by transversal p.
    6·1 answer
  • (-3)(5)(-5)(-4) thank you
    15·2 answers
  • My favorite Pokemon card has a mass of about one and a half
    15·1 answer
  • Change 1 hour 25 minutes 29 seconds to seconds
    9·2 answers
  • Solve for p -5 (p+3/5)=-4
    15·1 answer
  • HELP ME! I WILL GIVE BRAINLIEST
    8·1 answer
  • Your math teacher tells you that the next test is worth 100 points and contains 38 problems muitiple choices are worth 2 points
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!