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
zhenek [66]
3 years ago
7

P= 3in a) find the length of each side of the square b) find the area of the square

Mathematics
1 answer:
Anna007 [38]3 years ago
3 0

Step-by-step explanation:

what does P mean ?

I assume it is perimeter ?

what is the perimeter of a square ?

come on, there is practically nothing in math that is easier to solve.

a square has 4 equal sides.

so, to go one time around the whole square, we have to go along every one of its 4 sides (which are all of equal length).

so, when I get the perimeter number, I know this is the result of all 4 sides added together.

and how can we express having 4 times the same number ? exactly how we say it in English : 4 times the number.

therefore

P = 4 × side length

and from there we can immediately deduct

side length = P / 4 = 3/4 in

now we know how long the sides of the square are.

what is the area of the square ?

like for any rectangle the area is length×width. just that length=width, so that we end up with length×length = length².

therefore, the area is

3/4 × 3/4 = (3/4)² = 9/16 in²

this is important : a length is measured e.g. in inches (in). an area is then measured in square-inches = in²

You might be interested in
What is the solution? Need help asap
Mekhanik [1.2K]

Answer:b

Step-by-step explanation:

8 0
3 years ago
Adam earns $36 for every four hours of work. If he continues to be paid at the same rate. How long will it take him to earn $225
prisoha [69]

Answer:

It will take him 6.25 hours to earn $225

Step-by-step explanation:

225 ÷ 36 = 6.25

6.25 = 6 1/4

You are dividing the total amount of money needed to be earned ($225) by the amount of money he gets paid every hour ($36) to get the number of hours it will take him to earn the amount of money he wants to earn.

Hope this helps!

5 0
3 years ago
Read 2 more answers
Please help me solve!-
ruslelena [56]
R=17

5(17-2)=75

5(15)=75

75=75
4 0
3 years ago
The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 330 grams and a standard deviati
just olya [345]

Answer:

Weights of at least 340.1 are in the highest 20%.

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 = 330, \sigma = 12

a. Highest 20 percent

At least X

100-20 = 80

So X is the 80th percentile, which is X when Z has a pvalue of 0.8. So X when Z = 0.842.

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

0.842 = \frac{X - 330}{12}

X - 330 = 12*0.842

X = 340.1

Weights of at least 340.1 are in the highest 20%.

3 0
3 years ago
Write a quadratic function in vertex form whose graph has the vertex (−5, −1) and passes through the point (−2, 2)
denis23 [38]
This is your perfect answer

3 0
3 years ago
Other questions:
  • Alice is making balloon bunches from 6 red balloons and 15 blue balloons. She wants the same number of red balloons and the same
    6·2 answers
  • Ok so i need help,what is 5% of 225
    8·2 answers
  • 1. James buys a video game for his Xbox for $49.99, a controller for $34.95, and a walk through manual for $19.99. The sales tax
    11·2 answers
  • Alejandro, a pharmaceutical sales representative sells statins for a drug maker. He earns a 12% commission of the total sales of
    12·2 answers
  • A scale on a hiking map shows that 1.51.51, point, 5 inches represents 444 miles. What number of actual miles are represented by
    9·1 answer
  • The graphs of y = f(x) and y = g(x) are shown on the coordinate plane below. If g(x) = k* f(x), what is the value of k?
    6·2 answers
  • Tell whether the sequence is arithmetic. If it is, identify the common difference and write the explicit formula. Please show de
    12·1 answer
  • Y=-8(x+3)(x-2) in standard form
    8·1 answer
  • Find the missing side. Round to the nearest tenth.<br><br>A) 25.7<br>B) 15.5<br>C) 12.6<br>D) 31.8
    15·2 answers
  • Determine the volume of the entire Charter School.​11 points
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!