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
Vinil7 [7]
3 years ago
8

A circular swimming pool has a radius of 15 ft. There is a path all the way around that pool that is three feet wide. What is th

e circumference of the outer edge of the path around the pool? Use 3.14 for Pi.
Mathematics
1 answer:
daser333 [38]3 years ago
4 0

Answer:

The radius of the circle with the circumfrence we need to find is 15+3=18.

18*2pi=113.04

You might be interested in
8 1/2 + 17 2/3 + 12 1/6 <br><br> what is the answer??
Nuetrik [128]

Answer:

the answer is in point 117.967

3 0
2 years ago
Find the integration of (1-cos2x)/(1+cos2x)
slega [8]

Given:

The expression is:

\dfrac{1-\cos 2x}{1+\cos 2x}

To find:

The integration of the given expression.

Solution:

We need to find the integration of \dfrac{1-\cos 2x}{1+\cos 2x}.

Let us consider,

I=\int \dfrac{1-\cos 2x}{1+\cos 2x}dx

I=\int \dfrac{2\sin^2x}{2\cos^2x}dx         [\because 1+\cos 2x=2\cos^2x,1-\cos 2x=2\sin^2x]

I=\int \dfrac{\sin^2x}{\cos^2x}dx

I=\int \tan^2xdx                      \left[\because \tan \theta =\dfrac{\sin \theta}{\cos \theta}\right]

It can be written as:

I=\int (\sec^2x-1)dx             [\because 1+\tan^2 \theta =\sec^2 \theta]

I=\int \sec^2xdx-\int 1dx

I=\tan x-x+C

Therefore, the integration of \dfrac{1-\cos 2x}{1+\cos 2x} is I=\tan x-x+C.

8 0
2 years ago
38 ×29 use rounding to estimate each product
nydimaria [60]
38 rounds to 40.
29 rounds to 30.
40 x 30 = 120.
8 0
3 years ago
2 over 3 divided by 5
Yuliya22 [10]
2/3 divide by 5 is 2/15

Remember keep change flip

2/3 times 1/5 is 2/15

Hope this helps!
6 0
2 years ago
Each morning, Hungry Harry eats some eggs. On any given morning, the number of eggs he eats is equally likely to be 1, 2, 3, 4,
mamaluj [8]

Answer:

Mean = 35

Variance = 291.7

Step-by-step explanation:

Data provided in the question:

X : 1, 2, 3, 4, 5, 6

All the data are independent

Thus,

The mean for this case will be given as:

Mean, E[X] = \frac{\textup{Sum of all the observations}}{\textup{Total number of observations}}

or

 E[X] = \frac{\textup{1+2+3+4+5+6}}{\textup{6}}

or

E[X] = 3.5

For 10 days, Mean = 3.5 × 10 = 35

And,

variance = E[X²] - ( E[X] )²

Now, for this case of independent value,

E[X²] = \frac{1^2+2^2+3^2+4^2+5^2+6^2}{\textup{6}}

or

E[X²] = \frac{1+4+9+16+25+36}{\textup{6}}

or

E[X²] = \frac{91}{\textup{6}}

or

E[X²] = 15.167

Therefore,

variance = E[X²] - ( E[X] )²

or

variance = 15.167 - 3.5²

or

Variance = 2.917

For 10 days = Variance × Days²

= 2.917 × 10²

= 291.7

3 0
3 years ago
Other questions:
  • Hello!
    5·1 answer
  • Jordan is three years older than four times Lily's age. The sum of their age is 68. How old is Jordan?
    15·1 answer
  • A box contains five red balls, six green ones, and nine yellow balls. Suppose you select one ball at random from the box and do
    10·1 answer
  • I need help pls and thank you
    13·2 answers
  • The currency in Mexico is the Peso. The exchange rate approximately 11.1 Pesos for $3.40 At this rate, how many dollars would yo
    9·1 answer
  • HAVE TO TURN IN TODAY PLZ HELP
    11·1 answer
  • 2(2.5x+8)=26<br> what does x=?<br> plz help
    14·2 answers
  • Beforea question with division fraction she must multiply them
    15·2 answers
  • What is 0.9380 to two significant figures please help it's an exam ​
    5·1 answer
  • Subtract the sum of the expressions (4x2 – 6x + 3) and (-5x2 + 5x + 2) from the sum of (7x2 – 8x + 2) and (6x2 – 3x + 8)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!