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
snow_tiger [21]
4 years ago
12

A circle with radius of 2cm sits inside a circle with radius of

Mathematics
1 answer:
Semmy [17]4 years ago
6 0

Answer:

37.70 cm^2

Step-by-step explanation:

area of circle with radius 4 cm = (pi)r^2 = 3.14159 * (4 cm)^2 = 50.27 cm^2

area of circle with radius 2 cm = (pi)r^2 = 3.14159 * (2 cm)^2 = 12.57 cm^2

difference in areas = 37.70 cm^2

You might be interested in
Ethan's club spent $81 for 9 caps for its members. Each cap cost the same amount. How much did each cap cost?
Ksivusya [100]
81 divided by 9 = 9 

9 is your answer
6 0
3 years ago
Read 2 more answers
Solve equation<br> 24a-22=-4 (1-6a)
iren2701 [21]
24a-22=-4(1-6a) \\&#10;24a-22=-4+24a \\&#10;24a-24a=-4+22 \\&#10;0=18 \\&#10;not \ true \\ \\&#10;\boxed{\hbox{no solution}}
7 0
4 years ago
An astronaut on the moon throws a baseball upward. The astronaut is 6 ft 6 in tall, and the initial velocity of the ball is 40 f
weqwewe [10]

Answer:

t = 0.293 s and 14.52 s

Step-by-step explanation:

The heights of the ball in feet is given by the equation as follows :

S = -2.7t^2+40t+6.5

Where t is the number of seconds after the ball was thrown.

We need to find is the ball 18 ft above the moon's surface.

Put S = 18 ft

-2.7t^2+40t+6.5=18\\\\-2.7t^2+40t=18-6.5\\\\-2.7t^2+40t-11.5=0

It is a quadratic equation. Its solution is given by :

t=\dfrac{-40+\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)},\dfrac{-40-\sqrt{40^{2\ }-4\left(-2.7\right)\left(-11.5\right)}}{2\left(-2.7\right)}\\\\t=0.293\ s,14.52\ s

So, the ball is at first 0.293 s and then 14.52 s above the Moon's surface.

8 0
3 years ago
Find the area of the kite.
Bess [88]

Answer:

30 m

Step-by-step explanation:

We use the area of a kite which is diagonal 1 multiply it by diagonal 2 then divide by two

6 0
3 years ago
Pls help I cant do this
AlladinOne [14]

Answer:

Here you go!

Step-by-step explanation:

Hope this helped!

8 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement is true for the net and the solid it will form when it is folded?
    14·2 answers
  • Gail bought four snacks that cost $1.00, $1.50, $2.50, and $3.00. What is the average of the deviations from the mean?
    5·2 answers
  • Please answer this question for brainliest!
    13·1 answer
  • PLEASEEEEE HELPPPPPP ASAPPPPPPPP
    6·1 answer
  • The local high school is selling candy bars and soda at a fundraiser. The candy bars sells for eighty-four cents and each soda c
    15·1 answer
  • PLEASE HELP ME so it says Find the value of x in a triangle with the given angel measure x°,90°,16° and explain how you solve it
    12·1 answer
  • Solve l2x + 1l = 10<br><br><br> (That’s not a 12)
    11·1 answer
  • Is y=(x/2)^2 a function?
    12·1 answer
  • Braylynn has a balance of $4,000 on her credit card. After talking to a financial advisor, she decided to get a loan from the ba
    9·1 answer
  • 5-64 =<br> A. -8<br> B. -4<br> C. 4 or -4<br> O D. -16
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!