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
Leni [432]
3 years ago
8

Find the area of the region shaded in green. Use 3.14 to approximate pi.

Mathematics
1 answer:
8090 [49]3 years ago
3 0

Answer:

254 cm² (to 3 s.f.)

Step-by-step explanation:

Area of shaded region

= area of large circle -area of smaller circle

\boxed{area \: of \: circle = \pi {r}^{2} }

Radius of large circle= 15cm

Radius of smaller circle= 12cm

Area of shaded region

= π(15²) -π(12²)

= 225π -144π

= 81π

= 81(3.14)

= 254.34

= 254 cm² (3 s.f.)

You might be interested in
Please help me- AND PLEASE EXPLAIN
GuDViN [60]

Answer:

A=35, B=55, and C=25

Step-by-step explanation:

Angle A and the angle next to it are linear pairs, so you can subtract 145 from 180.

if you already know Angle A, and that the other angle is 90 degress, you can add 90+35 and subtract it from 180 to get Angle B

Angle C is paired with the angle across from it (I forgot what the term is called) so it is 25 degrees.

7 0
3 years ago
What is the coefficient of the c-term of the algebraic expression 14a - 72r - c - 34d? A) -34
natima [27]
When the coefficient of a term is 1 or -1, we don't write it, we just use the + or - sign. The coefficient of the c term is -1, because of the - sign in front of it and the lack of written coefficient. Any questions?
8 0
3 years ago
Drag tiles to match each fraction, decimal, or percent to an equivalent number
Radda [10]
24/25 = 0.96
3/5= 0.60
9/50= 0.18
26%= 13/50
0.35= 7/20
3 0
3 years ago
The bricklayer bought 7500 bricks to brick a wall. He calculated that every horizontal layer of bricks will contain 321 bricks.
statuscvo [17]
There will be 23 layers of brick, because 7500/321 = 23 with 117 leftover.
6 0
3 years ago
A rectangle has a length of (x+5)and a with of x Write down the expression for the area of a rectangle If the area is 24cm²,find
ratelena [41]

Answer: Width = 3cm

Length = 8cm

Step-by-step explanation:

Length = x+5 cm

Width = xcm

Area = 24cm²

Area of a rectangle = length × width

x × (x + 5) = 24

x² + 5x = 24

x² + 5x - 24 = 0

x² + 8x - 3x - 24 = 0

x(x + 8) - 3(x + 8) = 0

x - 3 = 0

x = 3

Width = 3cm

Since length = x + 5 = 3 + 5 = 8cm

Length = 8cm

8 0
3 years ago
Other questions:
  • Solve for y 5x+y=-10
    10·2 answers
  • The mean height of a Clydesdale horse is 72 inches with a standard deviation of 1.2 inches. What is the probability that a Clyde
    11·1 answer
  • Simplify the fraction ​
    14·1 answer
  • A skyscraper is 396 meters tall. At a cenrtain time of day, it casts a showdow that is 322 meters long. At what angle is the sun
    12·2 answers
  • Write in scientific notation<br> 9,870,000,000,000,000
    10·1 answer
  • g Which of the following is equivalent to P( A|B)? a. P(A and B) b. P(B|A) c. P(A)/P(B) d. None of these choices.
    12·1 answer
  • The numbers of words defined on randomly selected pages from a dictionary are shown below. Find the mean, median, mode of the li
    7·1 answer
  • Create one original post that
    14·1 answer
  • Mario has 3 1/6 lbs of trail mix. He puts equal amounts of trail mix into 5 bags for his friends. If he uses all of the trail mi
    13·1 answer
  • Solve the system of equations 3x + y = 3 and 7x + 2y = 1.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!