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
Mumz [18]
3 years ago
15

Find area of a circle whose diameter 21cm

Mathematics
1 answer:
mel-nik [20]3 years ago
5 0

Answer:

346.36 cm ^2

Step-by-step explanation:

You might be interested in
A movie theater earned $3,600 in sold-out ticket sales for the premiere of a new movie. VIP tickets cost $20 per person and regu
julia-pushkina [17]

There are 300 seats in the theater.

Step-by-step explanation:

Given,

Cost of one VIP ticket = $20

Cost of one regular ticket = $8

Worth of sold out tickets = $3600

Let,

x represent the number of VIP tickets sold

y represent the number of regular tickets sold

20x+8y=3600     Eqn 1

y = 2x                   Eqn 2

Putting value of y from Eqn 2 in Eqn 1

20x+8(2x)=3600\\20x+16x=3600\\36x=3600

Dividing both sides by 36

\frac{36x}{36}=\frac{3600}{36}\\x=100

Putting x=100 in Eqn 2

y=2(100)\\y=200

Total = x+y = 100+200 = 300

There are 300 seats in the theater.

Keywords: linear equation, substitution method

Learn more about substitution method at:

  • brainly.com/question/10633485
  • brainly.com/question/10672611

#LearnwithBrainly

6 0
3 years ago
Translate the phrase into an algebraic expression the product of c and 8
MAVERICK [17]
Product is multiplying. when you multiply a letter with a number you don't put any symbols so it would be 8c
6 0
3 years ago
Help please, I don’t understand, thanks! Ill give brainliest! :))
daser333 [38]
What he said hehe sorry for this
5 0
3 years ago
Identify the transformations needed to graph the cosine function y = –0.5cos(x) – 3 from the parent cosine function. Check all t
Zinaida [17]
Vertical translation 3 units down, vertical compression by a factor of 0.5, and r<span>eflection across the x-axis. This is because since the number -3 is outside of the parenthesis, it is a vertical translation and is since it is negative it is 3 down. If the number multiplied by the function is less than 1 it is a compression and if it is greater than 1 it is a stretch. And the negative represents the reflection across the x axis.
</span>
4 0
4 years ago
Read 2 more answers
if one person walked 1.2miles and the other walked 0.8 miles and they made 120.00 how much money did each one make
alexdok [17]
The one who walked 1.2 miles would have made $72 and the one who walked 0.8 miles would have made $48.
7 0
3 years ago
Other questions:
  • Someone plz help me out
    11·1 answer
  • What’s the correct answer for this?
    9·1 answer
  • Pionts A,B,and G make a plane ​
    8·2 answers
  • If f(x) = -4^x - 8 and g(x) = 5x + 6, find (f+g)(x)
    5·2 answers
  • What is the circumference of a circle with a radius of 8.4 inches
    5·1 answer
  • Explain how to write thirteen divided by thirty-three as a divison expression AND as a fraction!
    6·2 answers
  • Solve the quadratic equation. Show all of your steps.<br><br> x^2 + 3x - 5 = 0
    6·2 answers
  • use number sense Duane and Mick are saving their money to build a tree house.Duane adds $5. ti their piggy bank every other week
    9·2 answers
  • Tres hermanos pintarán la fachada de su casa. Alejandro pinta
    9·1 answer
  • Can someone help me with the areas?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!