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
Alex777 [14]
3 years ago
12

If the rectangle below is enlarged using a scale

Mathematics
1 answer:
san4es73 [151]3 years ago
5 0

Answer:

The perimeter P of a rectangle is given by the formula, P=2l+2w , where l is the length and w is the width of the rectangle. The area A of a rectangle is given by the formula, A=lw , where l is the length and w is the width.

You might be interested in
You select a marble from two different bags. You have a 30% chance of choosing a blue marble from the first bag and a 70% chance
pogonyaev

Answer:

50 percent is the average

5 0
3 years ago
7 2/15 + 5 2/3 +9 13/15=?? A:20 3/2 B:21 2/3 C:21 10/15 D:22 2/3
nikdorinn [45]
<span>22.6666666667, in other words D. 22 2/3</span>
6 0
4 years ago
Read 2 more answers
If your credit card is stolen and the thief runs up a total debt of $1,000, but you notify the issuer of the card as soon as you
Yuki888 [10]

Answer:

50 dollars

Step-by-step explanation:

college website

3 0
3 years ago
You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you beli
zhuklara [117]

Answer:

We need to sample at least 1069 parents.

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.

How many parents do you have to sample?

We need to sample at least n parents.

n is found when M = 4, \sigma = 79.5. So

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

4 = 1.645*\frac{79.5}{\sqrt{n}}

4\sqrt{n} = 1.645*79.5

\sqrt{n} = \frac{1.645*79.5}{4}

(\sqrt{n})^{2} = (\frac{1.645*79.5}{4})^{2}

n = 1068.92

Rounding up

We need to sample at least 1069 parents.

6 0
4 years ago
Read 2 more answers
A 15-foot building casts a 6-foot shadow. How tall is a building that casts a 16-foot shadow at the same time of day?
xxTIMURxx [149]

Answer:

40

Step-by-step explanation:

15/6 = x/16    6x=240 divide 240 by 6 to get 40

7 0
3 years ago
Other questions:
  • 29. Which integers represent a debit of $7 and a credit of $5?
    13·1 answer
  • Drag each tile to the correct box.
    10·2 answers
  • Model the following problem with a quadratic equation. Then solve. Find the length of a side of a square with an area of 75 ft2.
    10·1 answer
  • Below are two parallel lines with a third line intersecting them
    14·2 answers
  • If F(x) = 2x +4, which of the following is the inverse of F(x)?
    10·1 answer
  • Suppose we increase the overall number of doctors in the U.S. in all fields and specialties of medical practice by equal percent
    14·1 answer
  • Help pls I will give brainliest! 6
    13·1 answer
  • I've got a math test wish me luck​
    7·1 answer
  • An employee earns a gross pay of $1,200.00 per week. The employee's net pay is $850.00. The employee's voluntary 401(k) contribu
    7·1 answer
  • What is the answer to how can you use fraction strips to show that the autofoor is 7 out of 8 are not equal events
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!