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
Olegator [25]
3 years ago
8

The diameter of a circle is 3 cm. Find the circumference and the area.

Mathematics
1 answer:
ivanzaharov [21]3 years ago
6 0

Answer:

the third one C=3π cm; A=9π cm²

Step-by-step explanation:

You might be interested in
Write the equation for a vertical line going through the point<br> (-4,1)
stiks02 [169]

Answer:

x = -4

Step-by-step explanation:

a vertical line means it will cross only the x-axis, not the y-axis

wherever it cross the axis, that will be the point in your equation

example, a vertical line through the point (5, -10) has the equation x = 5

3 0
3 years ago
An F5 tornado is classified as having mean wind speeds greater than 261 mph. In an effort to classify a recent tornado, 20 wind
Anna35 [415]

Answer:

Type 2 error

Step-by-step explanation:

H0 : μ = 261

H0 : μ > 261

By failing to reject H0 ; when the it is false. This means accepting null hypothesis when it is actually FALSE. Then a type 2 error has been committed.

This is different from a type 1 error whereby the null hypothesis is rejected when it is actually TRUE.

Hence, by finding no evidence to reject the null hypothesis during statistical testing when the actual windspeed of an F5 tornado during statistical testing is actually greater than 261 mph.

6 0
3 years ago
21 less than three-fifths of a number is? I'd really like a step by step answer!
schepotkina [342]
Hope this helps :)))
3 0
3 years ago
Read 2 more answers
The volume of a cylindrical soup can is represented by the expression πr3 + 7πr2, where r is the radius of the cylinder. Which s
Ganezh [65]

Answer:

Step-by-step explanation:

Given the volume of the cylindrical soup expressed as V = πr³+ 7πr²

From V = πr³ + 7πr²;

factor out the common variable

V = πr³ + 7πr²

V = πr²(r+7) ... 1

The original volume of a cylinder V =  πr²h .... 2 where;

r is the radius of the cylinder

h is the height of the cylinder

Equating equation 1 and 2, we will have;

πr²(r+7)  =  πr²h

Divide both sides by  πr²

πr²(r+7)/ πr² = πr²h/ πr²

r+7 = h

h = r+7

<em>Hence the factor in the context given is equivalent to the height of the cylinder written as a function of its radius r</em>.<em> The statement means that the height of the cylindrical soup is 7 more than its radius.</em>

<em></em>

5 0
3 years ago
How can I make these a single fraction?
Serga [27]

in the like term you can add directly and make it single fraction and in unlike term you have to take LCM of denominator .

6 0
3 years ago
Other questions:
  • Choose the correct pair.
    6·1 answer
  • Pls help me. rlly need help. question in picture. pls hurry​
    8·1 answer
  • ​Claim: Most adults would erase all of their personal information online if they could. A software firm survey of 640 randomly s
    6·1 answer
  • Answer a school-supply store is selling markers in packages of 2 and packages of 5. if the store sold 7 packages containing a to
    13·1 answer
  • A lion runs at a speed of 50 mph and a cheetah runs 78 mph. If they both run at a steady rate, how far will a cheetah run in the
    14·2 answers
  • A parabola has a maximum value of 4 at x = -1, a y-intercept of 3, and an x-intercept of 1.
    12·2 answers
  • The time required for one complete swing of a pendulum is called period of pendulum. The period of pendulum is directly proporti
    11·1 answer
  • 9-3 divided by 1<br> _ plus 1 =?<br> 3​
    11·1 answer
  • Will give brainliest look at pitcure
    6·1 answer
  • -8c^2--6c^ 2 I need help!!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!