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
grandymaker [24]
3 years ago
9

Please finish this equation and write the answer​

Mathematics
1 answer:
olga55 [171]3 years ago
7 0

Given:

The equation is:

2540=\dfrac{22}{7}r^2(20)

To find:

The solution for the given equation.

Solution:

We have,

2540=\dfrac{22}{7}r^2(20)

It can be written as:

\dfrac{2540\times 7}{22\times 20}=r^2

\dfrac{17780}{440}=r^2

\dfrac{889}{22}=r^2

Taking square root on both sides, we get

\sqrt{\dfrac{889}{22}}=r               [Radius cannot be negative]

r=6.3568145

r\approx 6.36

Therefore, the value of r is about 6.36 cm.

You might be interested in
Plz someone help on this question​
sergey [27]

Answer:

Hi there!

Your answer is:

1050 liters per 6 days

Step-by-step explanation:

350liters per 2 days

*3 to determine 6 days

1050 liters per 6 days

Hope this helps

5 0
2 years ago
Read 2 more answers
I have a frequency of 20.0 Hz, if this frequency travels through the air with a speed of 331 m/s, what is it's wavelength
Sveta_85 [38]

Answer:

16 m

Step-by-step explanation:

c=f×m

331=20m ( divide by 20 both side)

therefore m=16.55m

5 0
2 years ago
Solve plzzzzz<br> -7+11p=3p-47
Setler79 [48]

Answer:

p = -5

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve! Image attached! Geometry, dumb/incorrect answers will get account, and answer reported, please answer all the way through
neonofarm [45]

Answer:

+) m∠1 = m∠2 (vertical angles theorem)

+) m∠2 and ∠3 are supplementary (because a//b)

+)m∠3 = m∠4 (alternate interior angles theorem, c//d)

=> ∠1 and ∠4 are supplementary (substitution property of equality)

Step-by-step explanation:

5 0
3 years ago
How many x-intercepts does the graph of each quadratic equation have? Show your work.
Alex73 [517]

Answer:

Step-by-step explanation:

In each case we find the discriminant b^2 - 4ac.

If the discriminant is negative, we have two unequal, complex roots.

If the discriminant is zero. we have two equal, real roots.

If the discriminant is positive, we  have two unequal real roots.

#51:  8v^2 - 12v + 9:  the discriminant is (-12)^2 - 4(8)(9) = -144.  we have two unequal, complex roots

#52:  (-11)^2 - 4(4)(-14) = 121 + 224 = 345.  we  have two unequal real roots.

#53:  (-5)^2 - 4(7)(6) = 25 - 168 (negative).  we have two unequal, complex roots.

#54:  (4)^2 - 16 = 0.  We have two equal, real roots.

4 0
3 years ago
Other questions:
  • Any answers to this
    11·1 answer
  • Given f (x) = 3/2x + 5 what is f (12)<br><br>help me please!​
    15·1 answer
  • What number is 73% of 215? (1 point) 215 = 0.73n n = 0.73 × 215 0.73 = n × 215 215 = 73n?
    13·1 answer
  • What is the solution set for 2+6−16=0
    6·1 answer
  • The prefix kilo- means what number?
    11·2 answers
  • Someone help me please answer only if you know
    6·1 answer
  • What fraction does point A represent on the number line?<br> 0 A
    10·1 answer
  • Please see picture of question.
    13·1 answer
  • Magician Anthony has in his magic hat 14 grey, 8 white and 6 black mice. What is
    7·1 answer
  • Help me with this<br> BRAINILIEST<br> 5 STAR
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!