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
r-ruslan [8.4K]
3 years ago
10

work out the area of a sector of a circle. give your answer in terms of π, can u plz show how u worked it out, thx :)

Mathematics
1 answer:
Leno4ka [110]3 years ago
8 0
\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta\pi r^2}{360}\qquad 
\begin{cases}
\theta=\textit{angle in degrees}\\
r=radius\\
--------\\
r=8\\
\theta=40
\end{cases}\implies A=\cfrac{40\cdot \pi \cdot 8^2}{360}
You might be interested in
Consider the following scenario:
shusha [124]

C. The number of times a dessert was offered at a special price.

8 0
2 years ago
Read 2 more answers
A person sold 100 shares of a stock at a loss of 40%. If the selling price for the 100 shares was $3,000, which of the following
Kisachek [45]

A person sold 100 shares of a stock at a loss of 40%.

selling price for the 100 shares was $3,000

Let the stock was bought at $x then we can write

x-\frac{40x}{100}=3000\\ \\ \frac{100x-40x}{100}=3000\\ \\ \ \frac{60x}{100}=3000\\ \\ \ 60x= 3000*100\\ \\ x=\frac{3000*100}{60} \\ \\ \ x=5*100=5000\\

Hence Amount paid for the Stock was $5000

7 0
3 years ago
Put the expression (48c)^3/4 in radical form hurry plz
Svet_ta [14]
Remember that if something is raised to a fraction exponent, the denominator of the fraction is the radical and the numerator stays a power. So it becomes:

fourth root of (48c)^3

Hope this helps
8 0
3 years ago
You invest $1,100 in an account that has an annual interest rate of 2.1%, compounded continuously. How much money will be in the
uranmaximum [27]
$1100 x 1.021^7 = $1272 (whole number.)

the $1100 is the original amount of money put in the bank with the 1.021 being the interest rate. this was put to the power of 7 to represent the years the money will be in the account.
6 0
3 years ago
if caramel is put onto a sphere-shaped apple such that the surface area increase at a rate of 10 cm2/min, find the rate at which
tresset_1 [31]

Answer:

The diameter will increase at a rate of 1/30π cm/min

Step-by-step explanation:

Here we want to calculate the rate at which the diameter will increase

Mathematically, the area of a sphere is given as;

A = 4πr^2

But r = d/2

so A = 4 * π * d/2 * d/2 = πd^2

dA/d(d) = 2πd

Thus dd/dA = 1/2πd = 1/2 * π * 15 = 1/30π

Given dA/dt = 10

Mathematically;

d(d)/dt = d(d)/dA * dA/dt

dd/dt = 1/30π * 10 = 10/30π = 1/3π cm/min

5 0
3 years ago
Other questions:
  • Find the mean of this set of numbers: 19, 19, 9, 11, 13, 20, 19, 10​
    5·1 answer
  • PLEASE HELP!!
    15·2 answers
  • Estimate the sum or difference...
    12·1 answer
  • Simplify the following expression (x+3)(x+5)
    10·1 answer
  • Identify a line that looks like a number line
    11·1 answer
  • a cactus casts a shadow that is 15ft long. a gate nearby cast a shadow that is 5 ft long. find the height of the cactus
    12·1 answer
  • Find the slope of the line -<br><br> a. -3/4<br><br> b. 3/4<br><br> c. -4/3<br><br> d. 4/3
    15·1 answer
  • What is the answer to this question
    8·1 answer
  • B) {(15.0). (15,-2)} Function? Explain:​
    9·1 answer
  • At the football game, 3 hamburgers and 6 soft drinks cost $27, and 4 hamburgers and 2 soft drinks cost $18. Which two
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!