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
miv72 [106K]
2 years ago
11

What is the area of an octagon with height of 30 and side lengths of 12.43

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
4 0
Radius = 15
side = 6.215

a^2 = 15^2 - 6.215^2
a = 13.65

Area = a × p
Area = 13.65 × 99.44
Area = 1357.356
You might be interested in
The table shows the distance Allison drove on one day of her vacation. Is the relationship between the distance and the time a p
Anuta_ua [19.1K]

Answer:

we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

Step-by-step explanation:

We know that when 'y' varies directly with 'x', we get the equation

y ∝ x

y = kx

k = y/x

where 'k' is called the constant of proportionality.

In our case, the table shows the distance Allison drove on one day of her vacation.

Time (h)              1         2        3          4        5

Distance (mi)       55    100     165     280    250

using the equation

k = y/x

susbtitute y = 55, x = 1

k = 55/1 = 55

substitute y = 100, x = 2

k = y/x

k = 100 / 2 = 50

substitute y = 165, x = 3

k = y/x

k = 165 / 3 = 55

substitute y = 280, x = 4

k = y/x

k = 280 / 4 = 70

substitute y = 250, x = 5

k = y/x

k = 250 / 5 = 50

It is clear that the value of 'k' does not remain constant.

Therefore, we conclude that the relationship between distance and time is NOT proportional.

Hence, she did not drive at a constant speed.

6 0
3 years ago
Expression 1 is -12x + 3
musickatia [10]

Answer:

-12 + 3 - (10x - 15x + 96)

Step-by-step explanation:

6 0
2 years ago
Circumference: <br> Can anyone help me with this?
FinnZ [79.3K]

Answer:

use formula when diameter is given

circumference of circle =πd

and

when radius is given

circumference of circle=2πr

hope this help

  1. 6π inch
  2. 18πcm
  3. 15π ft
  4. 8π m
  5. 12π ft
  6. 4π yd
4 0
3 years ago
If the third of 6 consecutive numbers is 12, what is their sum?
Oksana_A [137]

Answer:

75

Step-by-step explanation:

If the third of 6 consecutive numbers is 12, what is their sum?

6 numbers  = c-2, c-1, c, c+1, c+2, and c+3

The numbers become 10, 11, 12, 13, 14, and 15

Add that together and you get 75.

6 0
2 years ago
If UV = x+8, VW = 6x-8, and UW=14, what is VW?
Agata [3.3K]

Answer:

VW=4\ units

Step-by-step explanation:

step 1

Find the value of x

In this problem i will assume that  U,V and W are collinear and V is between U and W

so

UW=UV+VW ----> by addition segment postulate

substitute the given values

14=(x+8)+(6x-8)

solve for x

14=7x

x=2

step 2

Find the value of VW

VW=(6x-8)

substitute the value of x

VW=(6(2)-8)=4\ units

3 0
3 years ago
Other questions:
  • What is the leading coefficient?<br> 6-n^2+ 5n3
    6·1 answer
  • Select all irrational numbers.
    10·1 answer
  • The diameter of the base of the cone measures 8units. The height measures 6 units. What is the volume of the cone? 24pi cubic un
    10·1 answer
  • SOMEONE HELP ME PLEASE!!!
    12·1 answer
  • Selling price of a comic book: $1.70. Sales tax rate: 4%
    9·1 answer
  • 240 people are going to a charity event 3/5 of the guests have ordered chicken for their meals of the remaining guests 12.5% hav
    14·1 answer
  • What is the percent of 53 out of 191 people
    6·1 answer
  • Which values could be the values of x and y? ​
    10·1 answer
  • This is the question Below.
    7·1 answer
  • James, Kendra, Nick, and Natasha spent $56.00 to buy a present for their Aunt Jane.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!