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
Vilka [71]
3 years ago
14

Please help explanation if possible

Mathematics
1 answer:
Svet_ta [14]3 years ago
7 0

Answer:

18.84 feet.  let me know if you have ay other questions.

Step-by-step explanation:

The way to find the formula for circumference is kinda complicated so it is best to ust memorize the formula, which is 2πr.  or 2 times pi times the radius.  

Your problem gives you the formula, but instead of 2 and r in it you have d, which is the diameter.

The diameter of the circle is 2 times the radius, so that's why it is replaced.

the radius is the distance from the center fo the circle to one edge, and the diameter is the distance through the circle passing through its center.  so it's the center to one end plus the center to another end.  or r+r which is also 2r.

So d = 2r, so in this problem d =6 feet.

So now the formula πd = 3.14*6 feet = 18.84 feet

You might be interested in
Which of the following statements is correct? Population parameters are used to make inferences about sample statistics. Populat
ikadub [295]

Answer: Sample statistics are used to make inferences about population parameters.


Step-by-step explanation:

A number which describes a population is called a parameter, such as a proportion or percentage.

A statistic is a number which may be calculated from the data observed in a random sample without demanding the use of any unknown parameters.

The mean and variance of a population are population parameters.

Thus, fourth statement is the right answer "Sample statistics are used to make inferences about population parameters."

6 0
3 years ago
Read 2 more answers
Write 102.4 in scientific notation.
dangina [55]

Answer: 1.024 i think thats it

3 0
3 years ago
2. What is 18% of 29?
mylen [45]

Answer:

5.22

Step-by-step explanation:

18% = 18/100 or 0.18

18/100 * 29 = 522/100 or 5.22

3 0
3 years ago
Simplify.<br> Rewrite the expression in the form (7^3)^3
Sveta_85 [38]

Answer:

7^9

Step-by-step explanation:

When dealing with exponents inside and outside parenthesis with only one term in the parenthesis, you multiply the exponents. By doing this, you get 7^3x3, which is 7^9

6 0
3 years ago
Read 2 more answers
Could i have some really really quick help?
nata0808 [166]

Answer:

1125 m

Step-by-step explanation:

Given equation:

h=-5t^2+150t

where:

  • h = height (in metres)
  • t = time (in seconds)

<u>Method 1</u>

Rewrite the equation in vertex form by completing the square:

h=-5t^2+150t

\implies h=-5t^2+150t-1125+1125

\implies h=-5(t^2-30t+225)+1125

\implies h=-5(t-15)^2+1125

The vertex (15, 1125) is the turning point of the parabola (minimum or maximum point).  As the leading coefficient of the given equation is negative, the parabola opens downward, and so vertex is the maximum point.  Therefore, the maximum height is the y-value of the vertex: 1125 metres.

<u>Method 2</u>

Differentiate the function:

\implies \dfrac{dh}{dt}=-10t+150

Set it to zero and solve for t:

\implies -10t+150=0

\implies 10t=150

\implies t=15

Input found value of t into the original function and solve for h:

\implies -5(15)^2+150(15)=1125

Therefore, the maximum height is 1125 metres.

8 0
2 years ago
Read 2 more answers
Other questions:
  • 45% of what distance is 135 miles
    11·2 answers
  • 301 round to the nearest ten
    13·2 answers
  • What is the equation in vertex form of the quadratic function with a vertex at (-1, -4) that goes through (1, 8)?
    9·1 answer
  • The perimeter of a triangle is 240. Its sides are proportional to 3:4:5. The largest side of the triangle is
    8·1 answer
  • PLEASE HELPPP!!!! Will give brainiest!!!!
    9·1 answer
  • Solve the equation INCLUDE THE FORMULA x - 5 = 3 - 5x + 3x + 4
    10·1 answer
  • What is 1x1? please help me lol
    10·2 answers
  • Find the value of k so that the
    9·1 answer
  • What is 5 divided by 1/4
    14·2 answers
  • If the graph of f(x) = 9x is shifted 2 units to the right, then what would be the equation of the new graph?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!