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
Stella [2.4K]
3 years ago
6

It is easy. I need help. I’ll mark brilliant!!!

Mathematics
1 answer:
Natalija [7]3 years ago
6 0

Answer:

256.4

Step-by-step explanation:

\frac{1}{3}\pir^{2}h

3.14 x 25 = 78.5

78.5 x 9.8 = 769.3

769.3 ÷ 3 = 256.433333

256.433333 ≈ 256.4

You might be interested in
Help will mark brainliest
nlexa [21]

Answer:

d

Step-by-step explanation:

8 0
3 years ago
Assuming that the equations define x and y implicitly as differentiable functions x=f(t),y=g(t) find the slope of the curve x=f(
Mumz [18]
The given equations are
x(t+1)-4t \sqrt{x} =9            (1)
2y+4y^{3/2}=t^{3}+t           (2)

When t=0, obtain
x=9 \\ 2y+4y^{3/2}=0 \,\,=\ \textgreater \ \, y(1+2 \sqrt{y} )=0 \,=\ \textgreater \ \,y=0

Obtain derivatives of (1) and find x'(0).
x' (t+1) + x - 4√x - 4t*[(1/2)*1/√x = 0
x' (t+1) + x - 4√x -27/√x = 0
When t=0, obtain
x'(0) + x(0) - 4√x(0) = 0
x'(0) + 9 - 4*3 = 0
x'(0) = 3
Here, x' means \frac{dx}{dt}.

Obtain the derivative of (2) and find y'(0).
2y' + 4*(3/2)*(√y)*(y') = 3t² + 1
When t=0, obtain
2y'(0) +6√y(0) * y'(0) = 1
2y'(0) = 1 
y'(0) = 1/2.
Here, y' means \frac{dy}{dt}.

Because \frac{dy}{dx} = \frac{dy}{dt} / \frac{dx}{dt}, obtain
\frac{dy}{dx} |_{t=0}\, =  \frac{1/2}{3}= \frac{1}{6}

Answer:
The slope of the curve at t=0 is 1/6.



3 0
3 years ago
How do I solve this 4/5 -3/9 I solve
Oksana_A [137]

Answer:

21/45

Step-by-step explanation:

You make the denominator the same and u also multiply the top too and u subtract and thats how u get the answer

3 0
3 years ago
Read 2 more answers
Polynomials are closed under the operation of addition. Which statement best explains the meaning of closure of polynomials unde
spayn [35]
Answer: The correct answer is the second choice: "When any two polynomials are added, the result is always a polynomial."

When a set of numbers is "closed" under an operation, it means that the resulting output answer is the same type as the input.

For example, if you add  2x + 9 and 3x + 12, you get 5x + 21.

You started with 2 polynomials and you ended with a polynomial.
7 0
3 years ago
Seven less than the quotient of x and 9
erica [24]
Equation:

(x+9)-7
_______________________________________________________
8 0
3 years ago
Other questions:
  • Can someone please help me with this question?
    15·1 answer
  • If 2x +y=8, x+2y=4, find the value of x-y.<br> Please, help me
    7·1 answer
  • What is the kinetic energy of a 50 kg dog running towards a ball with a velocity of 6 meters per second?
    5·1 answer
  • Ellie's favorite recipe requires 3 eggs and makes 6 servings. Grace modifies the recipe by using 7 eggs and increasing all other
    13·1 answer
  • The mass of earth is 5.9 x 10^24. The mass of Pluto is 13,000,000,000,000,000,000,000 kg. Compared to Pluto, how much greater is
    5·1 answer
  • A professional model maker is building a giant scale model of a house fly to be used in a science fiction film. An actual fly is
    12·1 answer
  • Write 625 in exponential form in two different ways. PLEASE help me I will give 45 points!
    9·1 answer
  • Please help me out with this one! I need step by step instructions (30 points!)
    10·1 answer
  • Is currency truly a storehouse of value? Unfortunately money can, and usually does, lose its value over time.
    9·1 answer
  • Convert 5/8 into a decimal
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!