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_lady [41]
3 years ago
10

Help please look at picture^^

Mathematics
2 answers:
andrew11 [14]3 years ago
5 0

Answer

254.3—- rounded

A= Pi times r squared - this is formula for area of circle

area=  3.14 Times 9 squared

3.14 times 81

254.3

make sure to substitute values!

I hope this helps!

tankabanditka [31]3 years ago
3 0

Answer:

254.47

Step-by-step explanation:

A= 3.14 x r²

A = 3.14 x 9

A = 254.47

Hope this helps

You might be interested in
The sum that represents the number of tickets sold if 35 tickets were sold Monday half of the remaining tickets were sold on Tue
Goshia [24]
35+(r÷1/2)+14= T
Might be it?
6 0
3 years ago
Read 2 more answers
What is an equation for (0,1), (1,3), (2,9), (3,27), (4,81)
Gennadij [26K]

Answer:

y = 3^x

Step-by-step explanation:

Each y is 3 times the last one, so it's geometric, so exponential.  3 should appear as the base.

4 0
3 years ago
(cos x - (sqrt 2)/2)(sec x -1)=0
Darya [45]

(\cos x-\frac{\sqrt{2}}{2})(\sec x-1)=0 [/tex]

=(\cos x-\frac{1}{\sqrt{2}})(\sec x-1)=0 [/tex]

\frac{(\sqrt{2}\cos x-1)}{\sqrt{2}}(\frac{1}{\cos x\ }-1)=0

(Reciprocal Identity)

(\frac{^{\sqrt{2}\\cos  x-1}}{^{\sqrt{2}}})(\frac{1-\cos x}{\cos x})=0

\frac{^{(\sqrt{2}\cos x-1})}{\sqrt{2}}\frac{(1-\cos x)}{\cos x}=0

(\sqrt{2}\cos x-1}){(1-\cos x)}=0 (ZeroProduct Property)

\sqrt{2}\cos x-1=0

\sqrt{2}\cos x=1

\cos x=\frac{1}{\sqrt{2}}

x=\frac{\Pi }{4}

and

1-\cos x=0

\cos x=1

x=0

x=0 and x=\frac{\Pi }{4} are the solutions.

6 0
4 years ago
Read 2 more answers
Question 5 of 27<br> What is the measure of ZC in the parallelogram shown?
nikitadnepr [17]

Answer:

C.35⁰

Step-by-step explanation:

C= 180⁰-145⁰= 35⁰

3 0
3 years ago
In an experiment examining the effects Tai Chi on arthritis pain, Callahan (2010) selected a large sample of individuals with do
Volgvan

Answer:

a) Participants in Tai Chi course

b) Nominal

c) Magnitude of arthritis pain

d) Ordinal

Step-by-step explanation:

TYPES OF VARIABLES:

  • Independent Variable:

An independent variable is the one controlled or changed in an experiment to test the effects on the dependent variable. If this variable is changed, there shall be effects on the experiment.

In this case, number of participants in the course was independent.

  • Dependent Variable:

Dependent variable is the one being tested and measured. If the independent variable changes, this variable will show the effect of the changes.

<em>The variables can be determined by their cause and effect on the experiment.</em>

TYPES OF SCALES:

<em>There are two variations in types of scales; Quantitative and Qualitative.</em>

<em>Qualitative variables are measured by either nominal or ordinal scale, while quantitative variables are measured by ratio or interval.</em>

  • Nominal scale:

Nominal scales assign identifiers as labels to objects or classes of objects. The  assigned numbers carry no additional meaning except as identifiers for example: patient A, patient B etc.  

  • Ordinal scale:

Ordinal scales assign numbers to objects to rank  an attribute. For example: Level of pain 1 - 10, Level of satisfaction etc.

  • Interval:

In an interval scale, numbers are  assigned to objects such that the interval helps in interpretation of the variables. For example: age of patients: 30 - 40, 40 - 50 etc.

  • Ratio:

Ratio scales includes an absolute “zero” point. For example, Rate of arthritis in patients of a particular age etc.

4 0
3 years ago
Other questions:
  • An orange has 20 fewer calories
    15·1 answer
  • Which of the following is the estimated sum of fifty-five, sixty, and sixty-five using compatible numbers?
    7·1 answer
  • What is the slope of
    11·1 answer
  • Patrick saved 500$. He received 25% of the money for his birthday , saved 30% of the remainder from his allowance and earned the
    6·1 answer
  • Thomas thinks that 3 7/8 + 2 11/12 is pretty close to 5, but Lorinda thinks it is closer to 6. Todd disagrees with both of them
    9·1 answer
  • How to rewrite the expression 3(x-4)-(x+2)
    12·2 answers
  • HELPPP<br>3 1/5 ÷ 2/7=???​
    13·1 answer
  • HELPPPPPO PLEASEEEEEEEE I NEED HELP<br> Write a word problem using 3 divided 1/4
    15·1 answer
  • Somebody please help me out !! (Theres a photo attached)
    13·1 answer
  • Given the function F(t) = 34000(.98)' describe whether this function is growing or decaying, and by what percent. What is the in
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!