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
Makovka662 [10]
3 years ago
13

John has a circular pool that has a radius of 7 feet. What is the area of his pool? Please use the formula sheet to assist you w

ith this question. Question 3 options: 49.6 ft squared 153.86 ft squared 43.96 ft squared 615.44 ft squared
Mathematics
2 answers:
andrew-mc [135]3 years ago
5 0

Answer:

153.86 square feet

Step-by-step explanation:

The formula for the area of a circle is A=πr2

area = pi x radius squared

the radius is 7 feet, square that to get 49

multiply 49 by pi to get the area: 153.86 square feet

Tcecarenko [31]3 years ago
5 0

Answer:

153,86 stóp kwadratowych

Step-by-step explanation:

You might be interested in
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region. (to 2 decimals)
Fiesta28 [93]

Answer:

The area to the right of 2.120 is 0.0250 rounded to 4 decimal places

Step-by-step explanation:

We are required to find P(t>2.120)

To find this area we have to use the t distribution. Also we can use technology like excel to find the area to the right of 2.120.

The excel function is:

=TDIST(2.120,16,1)=0.0250

Where:

2.120 is the value of the test statistic

16 is the degrees of freedom

1 denotes the one tailed.

Therefore, the area to the right of 2.120 is 0.0250

6 0
3 years ago
Read 2 more answers
A piece of fabric is 2 yards long. The fabric is cut into 24 pieces of equal length.
Archy [21]
Each piece is 3 inches
6 0
3 years ago
Read 2 more answers
Please help me im stressing :((
Olegator [25]

9514 1404 393

Answer:

  • wrong: -2x² -x² ⇒ -2x²
  • correct: x³ -3x² +6

Step-by-step explanation:

The point of these "what was done wrong" exercises is to see if you know what the correct steps look like.

On line 2, Danielle correctly distributed the minus sign to eliminate the second set of parentheses. (There is often a problem with minus signs and parentheses, so it is nice to see it done correctly.)

On line 3, the two x² terms are incorrectly combined. It looks as though Danielle simply dropped the -x² term because it disappeared without changing the coefficient of x² from -2x². The correct sum of those terms is ...

  -2x² -x² = -3x²

so the correct work on line 3 is ...

  x³ -3x² +6

7 0
3 years ago
Answer true or false to each statement concerning a confidence interval for a population mean. Give reasons for your answers. a.
Rainbow [258]

Answer:

(a) True

(b) True

(c) False

(d) True

Step-by-step explanation:

The general form of a confidence interval is:

CI=SS\pm MOE

Here,

SS = Sample statistic

MOE = margin of error

The formula to compute the MOE is:

MOE=\frac{length}{2}

Here, length implies the length of the confidence interval.

(a)

The statement is:

"The length of a confidence interval can be determined if you know only the margin of error."

The length of the confidence interval is twice the MOE.

So, yes one can compute the length of the confidence interval if they know the value if MOE.

The statement is True.

(b)

The statement is:

"The margin of error can be determined if you know only the length of the confidence interval."

The margin of error of the confidence interval is half the length.

So, yes one can compute the MOE if they know the length of the confidence interval.

The statement is True.

(c)

The statement is:

"The confidence interval can be obtained if you know only the margin of error."

The confidence interval formula is:

CI=SS\pm MOE

So, if we only knew the value of MOE we cannot compute the confidence interval. We will also need the value of the sample statistic.

The statement is False.

(d)

The statement is:

"The confidence interval can be obtained if you know only the margin of error and the sample mean"

The confidence interval formula is:

CI=SS\pm MOE

So, if we knew the value of MOE and the sample statistic we can compute the confidence interval.

The statement is True.

5 0
3 years ago
Sasha buys a rowboat priced at $486.40. Shipping and handling are an additional 16% of
Maru [420]
486.40*16%= around 77.82 dollars
4 0
2 years ago
Read 2 more answers
Other questions:
  • Can some one explain to me what substitution is and how to use it to solve equations?
    11·1 answer
  • Dan saved 463 over 12 weeks of summer break.he saaved 297 of it during the last 4 weeks .how much did he save during the first 8
    15·1 answer
  • Ted likes to run long distances. He can run 20 km in 95 minutes. He wants to know how many kilometers he will go if he runs at t
    8·2 answers
  • jordan has a garden that is 528.15 square feet. if she divides the garden into 3 rows of equal size, how many square feet are in
    6·1 answer
  • AB passes through A(-3, 0) and B(-6, 5). What is the equation of the line that passes through the origin and is parallel to AB?
    10·2 answers
  • A line passes through the points (–1, 10) and (3, 2). Which shows the graph of this line?
    9·1 answer
  • I need help asap please i will mark you brainlist
    11·1 answer
  • How many 5/6 are in 2/3
    13·2 answers
  • Write the following expressions' answers using exponents.
    10·1 answer
  • 3. A toy car is traveling with a velocity of 4 m/s and has a mass of 1120g. What is the car's
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!