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
lord [1]
3 years ago
8

Can you pls help me hurry

Mathematics
2 answers:
Sav [38]3 years ago
8 0
It’s 188.4

All you have to do is plug in 30cm into the formula for circumference :)
liraira [26]3 years ago
7 0

Answer:

<h2>a. 188.4cm</h2>

Step-by-step explanation:

circumference = 2pi r

= 2× 3.14 × 30

= 60 × 3.14 = 188.40

You might be interested in
When NB = 12 ft, find the area of the region that is NOT shaded. Round to the nearest tenth.
Alborosie
If this item has the same picture on the same question posted before, the following will be the data.

Given: NB = 12 ft, Angle-120°<span>
Asked: area of the region that is not shaded.
Substitute the given values in the equation in finding the area of a circle.
</span>A = πr² 
<span>A = ⅔π(12 ft)² </span>
<span>A = 96π ft² 
(Since </span>120° is 1/3 of the circle. it is then understood that the unshaded parts must be 2/3 of the circle.)
Since you already have the area, find the area of the triangle to add it to the area of the circle to find the area of the unshaded part. By using a handy trigonometry, you can tell that their will be 2 triangles of 12 ft (if you are going to divide 120° angle). From this, you'll see that there will be one of the smaller triangles having a <span> the height of 6 ft and the base is 6√3 ft. Substitute the values.</span>
A = ½bh 
<span>A = ½(6 ft)(6√3 ft) * 2 </span>
<span>A = 36√3 ft² 
</span>
Add them up and you will have the exact answer  96π + 36√3 ft², when rounded to the nearest tenth, you will have <span> 364 ft². </span>

6 0
3 years ago
A) The probability distribution below is for the number of radios sold at Kisumu City Sound Store in a week. Radios(X) 0 1 2 3 4
AlekseyPX

Answer:

2.1

Step-by-step explanation:

Given :

Radios(X):_0 ___ 1 ___2 ___ 3 ___4 ___5

P(X=x) : 0.03 0.20 0.50 0.20 0.05 0.02

The expected weekly radio sales :

Σ(X) * p(x) : (0*0.03) + (1*0.20) + (2*0.50) + (3*0.20) + (4*0.05) + (5* 0.02) = 2.1

Hence, expected weekly radio sale = 2.1

4 0
3 years ago
Simplify the expression.
sergiy2304 [10]

Answer:

The simplified expression is:

⇒ 13x-8

Step-by-step explanation:

Given expression:

(9x + \frac{1}{2})+(4x-8\frac{1}{2})

To simplify the given expression.

Solution:

In order to simplify, we will combine the like terms by removing the parenthesis.

We have:

⇒  9x + \frac{1}{2}+4x-8\frac{1}{2}

Combining like terms.

⇒  9x+4x+\frac{1}{2}-8\frac{1}{2}

⇒  13x+\frac{1}{2}-8\frac{1}{2}

In order to combine fractions, we will combine the whole number and the fraction separately.

⇒  13x-8+(\frac{1}{2}-\frac{1}{2})

⇒  13x-8+0

Thus, the simplified expression is:

⇒ 13x-8

7 0
4 years ago
Simplify the expression.
Ivanshal [37]
Do you know how to change mixed fractions to improper fractions
4 0
3 years ago
Y is directly proportional to x.
djyliett [7]

Answer:

Step-by-step explanation:

Did you find the answer

3 0
3 years ago
Other questions:
  • Rearrange Equation to have y alone. <br><br> 10x-2y=46
    11·2 answers
  • Real numbers are the set of numbers that includes all rational and irrational numbers
    10·1 answer
  • The plane flies 725 miles per hour. how many minutes will it take to fly 150 miles
    15·1 answer
  • Anybody need some help
    15·1 answer
  • Suppose you choose a marble from a bag containing 2 red marbles, 5 white marbles, and 3 blue marbles. You return the first marbl
    13·1 answer
  • dalila says that the data belonging to this box plot down not contain on outlier. do you agree or disagree? explain.
    8·2 answers
  • Given the figure below, find the values of x and z .There is a picture below to see it clearly.(15x+58) and (12x+14)
    11·1 answer
  • What is the following product? root(3, 4) * sqrt(3)
    8·1 answer
  • I need help in mathematics
    6·1 answer
  • Belmont is a growing industrial town. Every year, the level of CO2 emissions from the town increases by 10%. If the town produce
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!