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
Liula [17]
3 years ago
11

The person who answers the question with the mathematical explanation and answer gets 65 points in total if answers correctly an

d marked as the brainliest so DON'T ANSWER WITH AN IDK AND GET FREE POINTS! If the area of a circle of radius 7 cm is 154 sq cm, what is the area of the shaded portion of the figure shown below?

Mathematics
2 answers:
liubo4ka [24]3 years ago
8 0

Answer:

10.5 squared centimetres.

Step-by-step explanation:

First, find the area of that sector. We are already given that the circle is 154 squared centimetres.

We are given 90 degrees (or one fourth of the circle). Thus, divide 154 by 4 to get the area of the sector (the white area).

The area of the sector is 154/4 or 38.5

We then need to find the area of the square. After that, we can subtract the sector area (the white area) from the area of the square (the total area) to find the area of the shaded section.

The area of the square is 7*7 or 49.

Thus, the shaded portion will be 49-38.5 or 10.5 squared centimetres.

sweet [91]3 years ago
5 0

Answer:

10.5 cm^2

Step-by-step explanation:

The square has area s^2 = (7 cm)^2 = 49 cm^2

The area of the portion is the the area of the square minus the area of 1/4 of the circle.

Area of 1/4 of the circle = 154 cm^2 / 4 = 38.5 cm^2

Area of shaded portion = 49 cm^2 - 38.5 cn^2 = 10.5 cm^2

You might be interested in
Find the indicated unknown angle measure.​
dem82 [27]

Answer:

138 degrees

Step-by-step explanation:

Angle b and the 42 degree angle right next to it are supplementary angles. That means that 42+b=180

b=138

4 0
2 years ago
Solve for h.<br> A=3h <br> Can anyone help me?
IgorC [24]

Answer:

h = 3/A

Step-by-step explanation:

A = 3h

Divide both sides by 3 to isolate h:

A/3 = 3h/3

Simplify and get

A/3 = h or h = A/3

Hope this helps!

8 0
2 years ago
what is the algebraic equation 3 times the sum of a number and 7 is 2 less than five times the number
stealth61 [152]
Let n = number

"3 times the sum of a number and 7" translates to 3(n + 7)

"2 less than five times the number" translates to 5n - 2

The word "is" becomes the equals sign.

3(n + 7) = 5n - 2

I think you already asked this one. 
7 0
3 years ago
If f(x)= 3/x+2 - square root of x-3, the domain for f(x) is all real numbers ___ than or equal to 3
aksik [14]

Answer:

I don't get the question very well

5 0
3 years ago
Read 2 more answers
Factor 16x^4 - 64y^8 completely
iris [78.8K]
16 • (x^2 + 2y^4) • (x^2 - 2y^4)

8 0
2 years ago
Other questions:
  • Order these cards starting with he smallest fraction 7/8 5/12 11/2 3/4 4/5
    13·1 answer
  • State the reference angle for -75
    15·1 answer
  • Determine the factors of 5x2 + 6x − 8. (5x − 1)(x + 8) (5x − 8)(x + 1) (5x − 4)(x + 2) (5x − 2)(x + 4)
    6·2 answers
  • Help with number 10.
    9·1 answer
  • Solving each system by eliminating <br> x-y+z= -1<br> x+y+3z= -3<br> 2x-y+2z= 0
    11·1 answer
  • Find the sum of this infinite geometric series.<br> HELP!!
    5·2 answers
  • 4.2 minus the product of 12 and a number
    10·1 answer
  • Can someone please help me asap thank u
    15·2 answers
  • FREE BRAIN!! TO THE FIRST PERSON
    10·2 answers
  • Select the graph that represents the solution to x&gt;3
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!