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
Dvinal [7]
3 years ago
5

Calculate the area of a circle with a radius of 3.5cm (1dp)

Mathematics
1 answer:
lions [1.4K]3 years ago
4 0
The formula to find the area of this circle is:
 
A = pi(r^2)
A = 3.14(3.5^2)
A = 3.14(12.25)
A= 38.465 cm 

You might be interested in
What are the zeros of the polynomial function f(x)=x^3-x^2-6x
aalyn [17]

Answer:

(

x

)

=

x

(

x

2

−

x

−

6

)

=

x

(

x

−

3

)

(

x

+

2

)

=

0

 

x

=

0

,

x

=

3

,

x

=

−

2

Explanation:

To find the zeros of the polynomial above first factor out the common factor then factor the remaining polynomial and set it equal to zero. Finally solve for x.

Step-by-step explanation:

6 0
2 years ago
What is the sum of an 8-term geometric series if the first term is -11, the last term is 859,375, and the common ratio is -5?
NikAS [45]
Formula of the sum of the 1st nth term in a Geometric Progression:


Sum = a₁(1-rⁿ)/(1-r), where a₁ = 1st term, r = common ratio and n= rank nth of term (r≠1)

Sum = (-11)[1-(-5⁸)] /[(1-(-5)]

Sum = (-11)(1- 390625)/(6)


SUM = 716,144
3 0
3 years ago
Find the value(s) of the variable for which the rational expression is not defined 4/5x
Westkost [7]
Ok so remember tha tdividining by 0 is undifnined
therfor
4/(5x)
if x=0 then it is undifined
8 0
2 years ago
Volume with cubes with fraction lengths​
Natalija [7]

Answer:

\large\boxed{24\ cubes}

Step-by-step explanation:

\bold{METHOD\ 1}\\\\\text{Calculate the volume of a prism:}\\\\V_{p}=(1)(2)\left(\dfrac{3}{2}\right)=3\ cm^3\\\\\text{Calculate the volume of a cube:}\\\\V_c=\left(\dfrac{1}{2}\right)^3=\dfrac{1}{8}\ cm^3\\\\\text{Calculate how many times the volume of the prism is greater}\\\text{than the volume of the cube:}\\\\\dfrac{V_p}{V_c}=\dfrac{3}{\frac{1}{8}}=3\cdot8=24

\bold{METHOD\ 2}\\\\1cm:\dfrac{1}{2}m=1\cdot2=2\\\\2cm:\dfrac{1}{2}cm=2\cdot2=4\\\\\dfrac{3}{2}cm:\dfrac{1}{2}cm=\dfrac{3}{2}\cdot\dfrac{2}{1}=3\\\\2\cdot4\cdot3=24\ (cubes)

8 0
3 years ago
Simplify 2a^2b^3(4a^2+3ab^2-ab)=?
iris [78.8K]

Answer:

1.) 8a⁴b³ + 6a²b³ab² - 2a²b³ab

2.) A. 44

3.) B. +83 degrees

4.) D. $0.15

5.) x⁴ - 256

6.) D. -122

7.) -6r²s⁴t³

Step-by-step explanation:

1.) To simplify, we simply multiply/distribute and then combine like terms.

2.) To simplify, we use Order of Operations BPEMDAS to solve.

3.) To find, we simply subtract 68 and -15 to get +83 as our answer.

4.) To find, we simply multiply 3 by 24 to get 72, then divide by $410.80 to get $0.15 as our answer.

5.) To expand/simplify, simply use Difference of Squares to get C. as our answer.

6.) To find the value, simply plug in 7 for <em>b</em> to get -122 as our answer.

7.) To find the result, remember that when you divide exponents, you subtract the powers.

7 0
3 years ago
Other questions:
  • A rhombus has all sides congruent and all angles congruent<br><br> True<br><br> False
    15·1 answer
  • What is the volume of a 10 ft X 5ft X 28ft box? (In cubic feet.)
    13·2 answers
  • Kristen goes on a cave tour with her family. they climb down to 8 meters below ground level
    5·1 answer
  • X - y = 8
    8·1 answer
  • Name the types of angles shown.
    13·2 answers
  • Mrs.Lewis bought 100 yards of ribbon.She used some of the ribbon to decorate dresses .Now she has 67 yards of ribbon remaining.
    9·1 answer
  • What 2 factors can be multiplied to give 120 and added or subtracted to give 7​
    14·1 answer
  • Work out 5 x 10^6 / 4 x 10^4<br> Give your answer as an ordinary number.
    8·1 answer
  • I NEED HELP PLZZZZZZZZ!!!!
    11·2 answers
  • HELP. I NEEEED HELP. THANK YOU.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!