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
Lelu [443]
3 years ago
13

What is the approximate area of a regular heptagon with a side length of 4 inches and a distance from the center to a vertex of

4.6 inches?
Mathematics
1 answer:
jok3333 [9.3K]3 years ago
4 0
Split it into 7 triangles. Half-base of each is 2 so the distance of center to the midpoint of the base is (Pythagoras) square root of (4.62 - 22) = 4.162 triangle is this times 2, and with 7 triangles multiply also by 7 to get an approximate area of 58 sq in. 
You might be interested in
Please need help with this question m
katovenus [111]

Answer:

D.

Step-by-step explanation:

3(5)+2 > 14= 17>14 which is true

10-5 less than or equal to 7

true, 5 is less than 7

7 0
3 years ago
Read 2 more answers
Tegan needs to make 686868 more snow blocks to finish building an igloo. Write an equation for the number of blocks Tegan still
Keith_Richards [23]

Answer:

We are given:

No: of blocks Tegan still needs to make = m.

No: of blocks Tegan has completed = c

Total No:of more snow blocks need to make = 68 .

Total number of more snow blocks need to make = Total number of blocks -  The number of blocks Tegan has completed.

m = 68 - c.

Therefore, the equation for the number of blocks Tegan still needs to make, m, when she has completed c blocks is

m = 68 - c.

For example.

Suppose if c = 10, it means Tegan still needs to make 68-10 = 58 block.

8 0
3 years ago
A chemist is mixing one solution that is 32% sodium and another solution that is 12% sodium how many liters of each type should
Brut [27]
In order to solve the amount of each solution, we need to set up equations. We do as follows:

Let x = solution with 32% sodium
      y = solution with 12% sodium

Overall balance
x + y = 50

Component balance
.32x + .12y = 50(.20) =10

Solving simultaneously,

x = 20
y = 30

Hope this answers the question. Have a nice day.
6 0
3 years ago
Solve 3^2x-5=81<br> Please show work
Strike441 [17]
Let's solve your equation step by step
(3^2)(x)-5=81
step 1:simplify both sides of the equation
(3^2)(x)-5=81
simplify.
9x-5=81
step 2:Add 5 to both sides.
9x-5+5=81+5
9x=86
divide both sides by 9.
9x/9=86/9
x=86/9
Answer:86/9

Hope this helps!
5 0
3 years ago
Please help- will give brainlist
marshall27 [118]

Answer:

m(JCA)

Step-by-step explanation:

C is the central angle here (the one in between)

so it will be m(JCA) or m(ACJ)

7 0
3 years ago
Other questions:
  • Factor the expression 2x4y – 18x2y3 completely.
    13·2 answers
  • The circumference of a circle is 30 pi. what is the radius of the circle
    6·1 answer
  • The product of two consecutive integers is 72. The equation x(x + 1) = 72 represents the situation, where x represents the small
    7·2 answers
  • 1-(-4) ,, (-4) is squared outside the parentheses
    8·1 answer
  • Only using 2,3,5,8 once to get 104 as many times as possible
    10·1 answer
  • I'll give brainiest , 5 stares help​
    12·1 answer
  • How do I solve this inequality?
    5·1 answer
  • (2x)x(5x^2)= <br> I just needed to write more
    11·1 answer
  • I am stuck here plz help I am so sick of this question
    13·2 answers
  • Evaluate :11/3 + -3/7 + -4/9
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!