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
guajiro [1.7K]
3 years ago
14

Question text What is the exact circumference of a circle that has a radius of 50 cm? Select one: a. 25πcm 25πcm b. 50πcm 50πcm

c. 100πcm 100πcm d. 200πcm
Mathematics
2 answers:
ololo11 [35]3 years ago
6 0

Answer:

The answer is C, 100π cm

Step-by-step explanation:

The formula of circumference of circle is C=2πr so you can just substitute the following value into the formula:

radius = 50cm

C = 2×π×50

= 100π cm

galina1969 [7]3 years ago
3 0

Answer:

C = 100 pi cm

Step-by-step explanation:

Circumference is given by

C = 2*pi*r

We are given the radius is 50

C = 2*pi*50

C = 100 pi

We cannot approximate pi since we are asked for the exact value

C = 100 pi cm

You might be interested in
Can someone Pease help me with this question
guajiro [1.7K]
A) It takes 6 s for water droplet to rise and fall back to the ground.
8 0
3 years ago
Read 2 more answers
What is the value of z?
Phoenix [80]

Answer:

1.5454

Step-by-step explanation:

8 0
3 years ago
Find the smallest positive integer k such that 3240/k is a square number
sashaice [31]

Answer:

10

Step-by-step explanation:

First, factorize the number 3,240:

3,240=2\cdot 1,620=2\cdot 2\cdot 810=2\cdot 2\cdot 2\cdot 405=2\cdot 2\cdot 2\cdot 2\cdot 5\cdot 81=2^3\cdot 5\cdot 9^2

So,

3,240=2^2 \cdot 2\cdot 5\cdot 9^2=18^2\cdot 10

Now consider the fraction

\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{k}

If k = 10, then

\dfrac{3,240}{k}=\dfrac{18^2\cdot 10}{10}=18^2

is a square number.

For all k < 10, the fraction tex]\dfrac{3,240}{k}[/tex] is not a square number (this follows from factorization).

Or you can simply check the values of the fraction for all k < 10:

  • k = 1, \dfrac{3,240}{1}=3,240 is not a square number;
  • k = 2, \dfrac{3,240}{2}=1,620 is not a square number;
  • k = 3, \dfrac{3,240}{3}=1,080 is not a square number;
  • k = 4, \dfrac{3,240}{4}=810 is not a square number;
  • k = 5, \dfrac{3,240}{5}=648 is not a square number;
  • k = 6, \dfrac{3,240}{6}=540 is not a square number;
  • k = 7, \dfrac{3,240}{7} is not a square number;
  • k = 8, \dfrac{3,240}{8}=405 is not a square number;
  • k = 9, \dfrac{3,240}{9}=360 is not a square number.
5 0
3 years ago
What is the answer to this problem
Elden [556K]
I think when you have a fraction like that, you multiply the denominator on both sides obviously by the first step

1 - 3x/5 = -7

Multiply on both sides
1 - 3x/5 * 5 = -7 * 5

and Solve
1 - 3x = -35

Subtract 1 from both sides of the equation
-3x = -36

Divide both sides by -3
-3x / -3 = -36 / -3 (← answer)
x = 12

Hope it helps
4 0
3 years ago
Is the triangle an acute, isosceles, obtuse, or right?
Trava [24]

Step-by-step explanation:

k =70 because all triangles angles add up to 180° and it's an acute angle cause all the angles are lower than 90° hope this helps

5 0
3 years ago
Other questions:
  • If the population declined 21% down to 15,049, what was the population last year?
    7·1 answer
  • Which of the following is a composite number between 40 and 50?
    7·2 answers
  • Compute the product using (a) the definition where Ax is the linear combination of the columns of A using the corresponding entr
    11·1 answer
  • A tree is 52 inches tall. How tall is it in feet and inches?
    15·2 answers
  • Can someone please help me with and explain this?
    10·1 answer
  • When you spin a 2D triangle, it looks like a 3D pyramid. true or false
    9·2 answers
  • What is the independent variable of<br><br> y=12x−2
    14·1 answer
  • I CONFUSED
    6·2 answers
  • Use &lt;, &gt;, or
    12·1 answer
  • SOMEONE GIVE ME THE ANSWER TO THIS PROBLEM
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!