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
Mademuasel [1]
2 years ago
6

Can somebody help me with this question, my brain has evaporated.

Mathematics
1 answer:
storchak [24]2 years ago
4 0

Answer:

9.42m

Step-by-step explanation:

You have to find the circumference using C=2πR. We know that the radius =4 meters so then we can insert it into the formula to get the circumference which equals 8π. Then we divide 24m² by 8πm and get 9.42m.

You might be interested in
NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by h ( t ) = − 4.
Fudgin [204]

Answer:

The rock splashes down when h(t) = 0. Set h(t) = 0 and solve for t using quadratic formula.

0 = − 4.9t^2 + 178t + 325

t = 38.07, -1.74

(Throw away the negative answer, since time can't be negative.)

t = 38.07 sec

Please Mark Brainliest If This Helped!

4 0
2 years ago
The table below shows the amount of a radioactive compound remaining after X years Sarah is compiling the data into a lab report
Murrr4er [49]

Answer:

  A. the y-intercept of the graph is 900, and as X increases, f(x) approaches 100.

Step-by-step explanation:

The table can be described by the function ...

  f(x) = 100 +800·2^-x

This is an exponential decay (not a constant-rate decay) from a y-intercept of 900 down to a minimum value of 100 (not zero).

The best description is that of choice A.

9 0
3 years ago
Work the problem for each card, look for the solution at the top of the next card. Use space and show all work
Vinil7 [7]

Answer:Mathematics of Money:

Compound Interest Analysis With Applications

This site is a part of the JavaScript E-labs learning objects for decision making. Other JavaScript in this series are categorized under different areas of applications in the MENU section on this page.

Professor Hossein Arsham    

Compound Interest: The future value (FV) of an investment of present value (PV) dollars earning interest at an annual rate of r compounded m times per year for a period of t years is:

FV = PV(1 + r/m)mt

or

FV = PV(1 + i)n

where i = r/m is the interest per compounding period and n = mt is the number of compounding periods.

One may solve for the present value PV to obtain:

PV = FV/(1 + r/m)mt

Numerical Example: For 4-year investment of $20,000 earning 8.5% per year, with interest re-invested each month, the future value is

FV = PV(1 + r/m)mt   = 20,000(1 + 0.085/12)(12)(4)   = $28,065.30

Notice that the interest earned is $28,065.30 - $20,000 = $8,065.30 -- considerably more than the corresponding simple interest.

Effective Interest Rate: If money is invested at an annual rate r, compounded m times per year, the effective interest rate is:

reff = (1 + r/m)m - 1.

This is the interest rate that would give the same yield if compounded only once per year. In this context r is also called the nominal rate, and is often denoted as rnom.

Numerical Example: A CD paying 9.8% compounded monthly has a nominal rate of rnom = 0.098, and an effective rate of:

r eff =(1 + rnom /m)m   =   (1 + 0.098/12)12 - 1   =  0.1025.

Thus, we get an effective interest rate of 10.25%, since the compounding makes the CD paying 9.8% compounded monthly really pay 10.25% interest over the course of the year.

Mortgage Payments Components: Let where P = principal, r = interest rate per period, n = number of periods, k = number of payments, R = monthly payment, and D = debt balance after K payments, then

R = P × r / [1 - (1 + r)-n]

and

D = P × (1 + r)k - R × [(1 + r)k - 1)/r]

Step-by-step explanation:

3 0
3 years ago
The isosceles triangle ABC has an area of 48 square units if AB=12 what is the perimeter of Abc in units?
erastovalidia [21]

Answer:

the answer would be 4 because you multiply

5 0
2 years ago
BRAINLIEST GIVEN TO BEST ANSWER
lbvjy [14]

Answer:

Slope = \frac{1}{4}

Step-by-step explanation:

Slope of a straight line passing two points (x_1,y_1) and (x_2,y_2) is given by the formula,

m = \frac{y_2-y_1}{x_2-x_1}

From the graph attached,

Line is passing through two points (20, 5) and (80, 20),

Therefore, slope of the line will be,

m = \frac{20-5}{80-20}

m = \frac{1}{4}

The slope is \frac{1}{4}.

3 0
3 years ago
Other questions:
  • Mario collected data from his classmates on their favorite subject among math, science, english and history. The data is display
    14·1 answer
  • Write each phrase as an algebraic expression
    10·1 answer
  • The highway mileage m in miles per gallon for a compact car is approximated by m(s) = -0.025s^2 + 2.45s - 30, where s is the spe
    9·1 answer
  • Shaun’s tent (shown below) is a triangular prism. What is the the surface area, including the floor, of his tent?
    6·2 answers
  • Answer is due in 1 hour!
    6·1 answer
  • Can someone please help me with this
    8·1 answer
  • PLZ HELP ITS DUE NOW NO LINKS
    6·1 answer
  • What is 90900909909090909099009099090 +242424242424-6566556637
    5·1 answer
  • Find the missing sides of the triangle. Leave your answers in simplest radical form.
    5·1 answer
  • Write an expression for the caculation the diffrence of the products of 5 and 2 and 5 and 1
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!