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
saw5 [17]
3 years ago
6

Help solving this math

Mathematics
1 answer:
9966 [12]3 years ago
6 0

Answer:

  1. 24 cm²
  2. 6400 -1600π ≈ 1373.45 square units

Step-by-step explanation:

1. You can look at this several ways.

It can be considered to be a stack of 1+2+3 = 6 squares that are 2 cm on a side, so have a total area of 6 × (2 cm)² = 24 cm².

You can lop off one of the squares sticking out and put it into the empty corner to form a 6 cm by 4 cm rectangle with an area of (6 cm)(4 cm) = 24 cm².

You can consider it to be a 6 cm square with 3 squares cut out of it that are 2 cm on a side: (6 cm)² -3(2 cm)² = (36 -12) cm² = 24 cm².

__

2. The shaded area is the difference in areas of a square 80 units on a side and a circle of 40 units radius. If we let d represent the side dimension of the square, then the area formulas are ...

  Square area = d²

  Circle area = π(d/2)²

So the difference area is ...

  shaded area = d² -(π/4)d² = d²(1 -π/4)

For d=80, the shaded area is ...

  shaded area = 80²(1 -π/4) = 6400 -1600π ≈ 1373.45 square units

You might be interested in
Marci purchased the rug shown. To the nearest hundredth, what area of floor space will the rug cover? (π = 3.14)
quester [9]

Answer:

63.59

Step-by-step explanation:

5 0
3 years ago
Madeline has used 50 sheets of a roll of paper towels, which is 5/8 of the entire roll. The equation 5/8s = 50 can be used to fi
raketka [301]

Answer:

s=80

Step-by-step explanation:

5/8ths is .625

80 x .625 =50


4 0
3 years ago
Which of the following is a closed statement? Question 16 options: A) z is a positive number. B) x is an odd number. C) 30 is an
rusak2 [61]

Answer:

Step-by-step explanation:B) x es un número impar

3 0
3 years ago
Hewp..Pls
timofeeve [1]

Answer:

2y+4x=12

2*1+4*8=12

2+32=12

35=12

7 0
3 years ago
What is the product in simplest form? State any restrictions on the variable. Is it 1,2,3 or 4
mart [117]

Answer: I think its C

Step-by-step explanation:

6 0
2 years ago
Other questions:
  • Expand and simplify (3x+5)(4x-1)
    10·1 answer
  • True or False: The cube root of a negative number will ALWAYS be negative?
    15·2 answers
  • A 5 inchx 7inch photograph is placed inside a picture frame. Both the length and the width of the frame are 2x inches larger tha
    13·1 answer
  • One eighth of the number of raisin bagels sold on Friday were sold on Saturday. How many raisin bagels were sold on Saturday? Th
    8·2 answers
  • you have an initial amount of 55$ in a savings account and you deposit an equal amount into your account each week. After 6 week
    8·1 answer
  • Consider the statement : Congruent triangles are always similar. Which of the following statements is an example of the statemen
    6·1 answer
  • Michael plots and connects the following points: A(-3,2), B(1,1), C(-3,4) and D(-5,-1). Which best describes the quadrilateral f
    11·2 answers
  • Find the standard form of the equation of the ellipse with the given characteristics. Vertices: (4, 0), (4, 14); endpoints of th
    11·1 answer
  • Which phrase best describes the translation from the graph y = 2(x - 15)2 + 3 to the graph of y = 2(x - 11)2 + 3?
    14·2 answers
  • Find the equation, in standard form, of the line passing through the point (5,1) and (-2,3)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!