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
Jobisdone [24]
2 years ago
10

I need help please help me. This is hard.

Mathematics
1 answer:
xenn [34]2 years ago
7 0

Answer:

r=3.399

Step-by-step explanation:

82.3=1/2(4/3pir^3)

164.6=4/3pir^3

164.6*(3/4) = 123.45=pir^3

123.45/pi=39.2953554494=r^3

cube root of 39.2953554494 =3.399

r= around3.4

You might be interested in
Which choice is the appropriate simplified form and restriction for the variable? 3x^2+9x over x^2-2x-15
VARVARA [1.3K]
(3x^2 + 9x) / ( x^2 -2x -15)

Factor both polynomials

(3x)(x+3) / (x-5)(x+3) = 3x/(x+5)

The simplified form is 3x/(x+5)

The restriction for the variable is x ≠ -3 (this is because you can only simplify the factor x-3 if its value is not zero).

7 0
3 years ago
Read 2 more answers
Help me ASAP. Full explication and good answers.
Cloud [144]
<span>On the day of a child's birth, a sum of money is to be invested into a certificate of deposit (CD) that draws 6.2% annual interest compounded continuously. The plan is for the value of the CD to be at least $20,000 on the child's 18th birthday.  
</span>
let \ P \ = Initial \ amount 

Let \ R \ = Annual \ Interest  \ as \ a \ decimal 

Let \ x \ = Solution 

x=Pe^r^t 

Let \ variable \ a = 20,000 \ , \ r = 0.062 \ and \ t = 18 
<span> 
</span>Use \ Substitution \ to \ solve 

The substitution<span> method is used to eliminate one of the variables by replacement when solving a system of equations
</span>
P= \dfrac{20,000}{e0.062.18} = \dfrac{20,000}{e1.116} = \dfrac{20,000}{3.0526} = 6,551<span>
</span>
6,551 \ = Correct \ Answer  

Nearest \ Multiple \ of \ 6551 \ = \ 7000

8 0
3 years ago
Read 2 more answers
-(m-6)=3m+14 please show step-by-step solutions!
antiseptic1488 [7]

Answer:

Step-by-step explanation:

-(m - 6) = 3m + 14

-m + 6 = 3m +14

Subtract 6 from  both the sides

-m + 6 - 6 = 3m + 14 - 6

-m = 3m + 8

Subtract 3m from both the sides.

-m - 3m = 3m + 8 - 3m

-4m = 8

Divide by (-4)

-4m/-4 = 8/-4

m = -2

7 0
3 years ago
Please help o need this done fast I’m in a rush
kondaur [170]

Answer:b

Step-by-step explanation:

6 0
2 years ago
Find the value of x^3+x^2-3× when x = -2​
spayn [35]

Answer:

-12-3×

Step-by-step explanation:

what is that last thing? is it an x or something else?

3 0
2 years ago
Other questions:
  • For the following right triangle, find the side length x. around your answer to the nearest hundredth
    11·1 answer
  • What fractions are equal to 4/12
    9·2 answers
  • Let ABC be a right triangle with legs AB = 8 cm and AC = 9 cm. What is the largest possible area of a rectangle ADEF if the poin
    6·1 answer
  • Please help me with this
    7·1 answer
  • A boat takes 8 hours to go 6 miles upstream and come back to the starting point. If the speed of the boat is 4 miles per hour in
    15·2 answers
  • What is 1.83 repeating as a fraction?
    13·2 answers
  • Find the equation of the line passing through the points (0.-1) and (3.5).
    8·1 answer
  • X^2−2(x+5)<br> x=10<br> thanks for helping
    13·1 answer
  • In a week, Caidyn earns $27.55 more than half the amount
    15·1 answer
  • 14.10_3.05 help me out please ​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!