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
Juli2301 [7.4K]
3 years ago
11

Calculate the area of a sector of a circle that subtends an angle of 45° at the center of the circle, radius 14cm

Mathematics
1 answer:
horrorfan [7]3 years ago
3 0

Calculate the area of the full circle:

Area = PI x r^2

Area = 3.14 x 14^2  = 615.44 sq. cm

45 degrees is 1/8 of a circle, multiple the area of the circle by 1/8

615.44 x 1/8 = 76.93, round to 77 cm^2

The answer is B. 77 cm^2

You might be interested in
PLEASE HELP ASAP AND IF YOU DONT KNOW DONT ANSWER (PHOTO ATTACHED)
Oxana [17]

Answer:

I believe its b, bc the slope is negitive

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the volume of the composite solid shown below, Round answer to the nearest hundredth.
MrMuchimi
First you’d start off by finding the volume of the rectangular prism on the bottom. The formula for this is lwh or (length*width*height) so you’d plug in the numbers and get 4*4*5 which multiplies out to be 80inches cubed. Next you’d have to find the volume of the pyramid by using the formula lwh/3 or ((length*width*height)/3) so it would be ((4*4*6)/3) and that equals 32inches cubed. Finally, you add the 2 volumes together so 80inches cubed+32inches cubed and get 112inches cubed. Hope this helps
4 0
2 years ago
If an ant crawls 1 meter in 25 seconds, what is the ant’s speed?
Oduvanchick [21]
1min=60s\to1s=\frac{1}{60}min\\\\25s=25\times\frac{1}{60}min=\frac{5}{12}min\\\\1m/25s=1m/\frac{5}{12}min=\frac{12}{5}\ m/min=2.4\ m/min
3 0
3 years ago
Read 2 more answers
F(x)=-9x^2-2x and g(x)=3x^2+6x-9, find (f-g)(x) and (f-g)(-4)
Sergio039 [100]

Answer:

(f-g)(x) = -12x^{2} - 8x + 9

(f-g)(-4) = -151

Step-by-step explanation:

To find f-g(x) we subtract the common terms. So

f(x) = -9x^{2} - 2x

g(x) = 3x^{2} + 6x - 9

(f-g)(x)

(f-g)(x) = f(x) - g(x) = -9x^{2} - 2x - (3x^{2} + 6x - 9) = -9x^{2} - 2x - 3x^{2} - 6x + 9 = (-9 - 3)x^{2} + (-2 - 6)x + 9 = -12x^{2} - 8x + 9

(f-g)(-4)

(f-g)(x) = -12x^{2} - 8x + 9

We replace x by -4

(f-g)(-4) = -12(-4)^{2} - 8(4) + 9= -151

(f-g)(-4) = -151

5 0
3 years ago
Can any one please help me to do e and d please can anyone do it for me please
Semenov [28]

Answer:

d = 520 cm^3   e = 1717.66 cm^2

Step-by-step explanation:

d) The area of the face triangle is 40 and multiply that with the length, 13 to get 520.

e) The volume of the half circle is 190.85 and the volume of the cone is 1526.81 and add them

6 0
3 years ago
Other questions:
  • Choose the graph below that has an undefined slope. (5 points) vertical line through the point negative 6 comma 0 line through t
    10·1 answer
  • Write the slope intercept form of the equation of the line described
    7·1 answer
  • Use the Distributive Property to simplify the expression 7(x−4)7(x−4).
    15·2 answers
  • Solve the following problem: –25 + 37 =
    10·2 answers
  • 2. Kiara baked 30 oatmeal cookies and 48 chocolate chip cookies to package in plastic containers for her friends at school. She
    8·1 answer
  • ⚠️⚠️PLEASE ANSWER QUESTION IM ALMOST DONE WITH THISSS⚠️⚠️
    8·2 answers
  • PLEASEEEEE HELPPPPPPPP​
    9·2 answers
  • What is n x 567 =<br> 457 + ae <br> wgv - 48765
    5·1 answer
  • Ayşe'nin boyu Selin'in boyunun iki katından 0,3 m
    14·2 answers
  • Please help will give brainliest
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!