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
Ann [662]
3 years ago
12

The perimeter of a square is 36what is the area of the square?​

Mathematics
1 answer:
zmey [24]3 years ago
6 0

Answer: 81 units²

Step-by-step explanation: To solve this problem, remember that the formula for the area of a square is 4s.

Therefore, since the perimeter of the given square is 36, we have 36 = 4s and dividing both sides by 4, 9 = s.

Now, remember that the formula for the area of a square is s² and since the length of a side of the given square is 9, we have (9)² or 81.

So the area of a square that has a perimeter of 36 is 81 units².

You might be interested in
Yolanda owns 4 rabbits. She expects the number of rabbits to double every year.
klasskru [66]
It is geometric sequence.
Therefore:
a_1=4\\
q=2\\
S=a_1*\frac{1-q^n}{1-q}\\
64=4*\frac{1-2^n}{1-2}\\
16=\frac{1-2^n}{-1}\\
-16=1-2^n\\
16+1=2^n\\
2^4+1=2^n\\
n>4

After 4 yours she will have over 64 rabbits.
8 0
3 years ago
Read 2 more answers
Consider each of the following relationships. Which school shows the greatest rate of change between male and female students?
ratelena [41]

Answer:

The school C shows the greatest rate of change between male and female students

Step-by-step explanation:

Let

x -----> the number of female students

y ----> the number of male students

we know that

The ratio of male students to female students is

\frac{y}{x}

we have

<em>School A</em>

\frac{y}{x}=\frac{4}{1}=4

<em>School B</em>

\frac{y}{x}=\frac{4}{3}=1.33 ----> the slope of the linear equation

<em>School C</em>

\frac{y}{x}=\frac{1,260}{280}=4.5

so

4.5 > 4 > 1.33

therefore

The school C shows the greatest rate of change between male and female students

7 0
3 years ago
A city planner wants to estimate the average monthly residential water usage in the city. He selected a random sample of 100 hou
hodyreva [135]

Answer:

The 90% confidence interval for the average monthly residential water usage for all households in this city is between 4401.3 gallons and 4598.7 gallons.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{600}{\sqrt{100}} = 98.7

The lower end of the interval is the sample mean subtracted by M. So it is 4500 - 98.7 = 4401.3 gallons

The upper end of the interval is the sample mean added to M. So it is 4500 + 98.7 = 4598.7 gallons

The 90% confidence interval for the average monthly residential water usage for all households in this city is between 4401.3 gallons and 4598.7 gallons.

4 0
2 years ago
Find the slope and y-intercept of each equation. Y=-5x+8
Natali [406]

Answer:

Slope= -5

y-intercept=8

Step-by-step explanation:

In the formula y=mx+b

The m is the slope and the b is the y-intercept.

8 0
3 years ago
Read 2 more answers
An administrator at a local high school wants to investigate whether there is an association between the grade level of a studen
Nataliya [291]

Answer:

c.

Step-by-step explanation:

The following is how the p-value should be interpreted:

The probability of getting the test statistics value at least as intense as it might have been acquired during the test, assuming the null hypothesis is true, is considered as the p-value.

Null hypothesis

\mathbf{H_o :} A student's grade level has no bearing or association on how they commute to school.

Alternative hypothesis;

\mathbf{H_1: } There is a link between a student's grade level and the way they get to school.

The test statistic's value is 14.63, and the p-value is 0.2636.

As a result, the p-value is interpreted as that of option c in the question.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Help me and I'll label u the brainest the first person
    9·1 answer
  • PLEASE HELP ME WITH THIS STATISTICS WORK SAMPLE (will give brainliest)
    10·2 answers
  • PLS HELP NEED ASAP The formula d=rt gives the distance traveled for a rate r and an amount of time t. A car travels at a rate of
    7·2 answers
  • I need help asap :):):)
    10·2 answers
  • The owner of a small deli is trying to decide whether to discontinue selling magazines. He suspects that only 9.8% of his custom
    13·1 answer
  • Stephanie has $152 in the bank. She withdraws $20 Then she deposits $84 Write an addition expression to represent this stiuation
    10·2 answers
  • Write an equation of a line that is parallel to 6x - 2y = -3 and passes through the point (1, 3).
    10·1 answer
  • Help me pls! 8 - 5 1/3=?
    10·2 answers
  • Last one i thibk <br> n nm ,jnp908yt7uryfhgj=o\987654321234567890-[';lkjhgfdsw234567i
    15·2 answers
  • at a snack, a milkshake costs $1.19, a cheeseburger costs $3.19, and an order of sweet potato fries costs $2.89. austin is going
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!