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
yan [13]
3 years ago
7

The areas of two circles are in a ratio of 169:121. What is the ratio of their radii?

Mathematics
2 answers:
horrorfan [7]3 years ago
8 0

Answer:

1 \frac{48}{121}

Step-by-step explanation:

divide 169/121 and that equals the answer above

Veronika [31]3 years ago
6 0

Answer:

13 : 11

Step-by-step explanation:

If the ratio of radii = a : b, then

ratio of areas = a² : b²

Given

ratio of areas = 169 : 121, then

ratio of radii = \sqrt{169} : \sqrt{121} = 13 : 11

You might be interested in
7). John had 9 pieces of gum at the
Dmitry_Shevchenko [17]

Answer:

9-1=8

Step-by-step explanation:

he started with 9 but at the end of the day he had 8. meaning he ate 1 peice

7 0
2 years ago
Is 2(x-5)=5x+23 a true or false equation ​
sergiy2304 [10]
False ......................................
5 0
3 years ago
Read 2 more answers
Solve the following new equation
mixer [17]

Answer:

<h3>x = 1.54 or x = - 4.54 to 2 decimal places</h3>

Step-by-step explanation:

x² + 3x - 7 = 0

Using the quadratic formula

a = 1 b = 3 c = - 7

x =  \frac{3 ± \sqrt{ {3}^{2} - 4(1)( - 7) }  }{2(1)}  \\  x =  \frac{ - 3± \sqrt{9 + 28} }{2}  \\  \\ x =  \frac{ -3 ± \sqrt{37} }{2}  \\  \\ x =  \frac{ - 3 +  \sqrt{37} }{2}  \:  \:  \:  \:  \: or \:  \:  \: x =  \frac{ - 3 -  \sqrt{37} }{2}  \\  \\ x = 1.54 \:  \:  \: or \:  \: x =  - 4.54

Hope this helps you

7 0
3 years ago
Identify the 19th term of a geometric sequence where a1 = 14 and a9 = 358.80. Round the common ratio and 19th term to the neares
Molodets [167]
The formula of geometric sequence is expressed in the following manner:
an = a1 * r^(n-1) where r is the ratio and n is an integer.
Substituting, to find r
358.80 = <span>14 * r^(8) 
r is equal to 1.5

hence, 
</span><span>a19 = 14* 1.5^(19-1)
</span>a19 <span> ≈ 20,690.</span>

6 0
3 years ago
Read 2 more answers
If the side length is increased by a factor of 3, how much larger is the perimeter of a face of the new cube?
Luden [163]
The <span>perimeter of a face of the new cube is 8 times larger than the previous cube.
</span>Let us say, the side of cube before increase is "a"
Then perimeter of the cube = 12a ,

because the cube has 12 sides.
And perimeter of a face of cube = 4a
Now, the side length is increased by factor of 3 i.e. new side is 3a
Thus, perimeter of new face of the cube = 4*3a = 12a

Therefore, the new perimeter is larger by = 12a - 4a = 8a 
6 0
4 years ago
Other questions:
  • There are 6 quarters in a jar. Jill adds 2 quarters to the jar every day. Which linear equation represents the total amount of q
    13·2 answers
  • ​ ∠3 ​ and​ ​ ∠4 ​ ​are complementary angles.
    11·2 answers
  • Match the following terms to the correct key words. 1. standard deviation 2. mean 3. subset of population 4. likelihood
    10·2 answers
  • PLEASE PLEASE HELP. What is the length of BC in the right triangle below?
    11·1 answer
  • ∫ (3x²-2)/x³ dx<br><br> help
    12·1 answer
  • Tanya drove 3 1/2 hours and used 1/3 tank of gas. For how long could Tanya drive using​ 1/2 ​tank of gas?
    15·1 answer
  • SOLVE PLEASEEE :)<br><br><br> X/4 <img src="https://tex.z-dn.net/?f=%5Cgeq" id="TexFormula1" title="\geq" alt="\geq" align="absm
    9·2 answers
  • Complete the steps to evaluate the following expression, given log3a = −0.631.
    9·2 answers
  • Evaluate the following:
    8·1 answer
  • Helppppppppppppppppppppp
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!