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artcher [175]
2 years ago
5

One of the angles of a regular octagon has a measure of (7x-5) What is the value of x?

Mathematics
2 answers:
Nesterboy [21]2 years ago
6 0

Answer:

20

Step-by-step explanation:

Regular octagon means that each angle is 135 degrees, so 135 = (7x - 5).

135 = 7x - 5,

135 + 5 = 7x,

140 = 7x,

140 / 7 = x,

20 = x

SIZIF [17.4K]2 years ago
4 0

Answer:

  x = 20

Step-by-step explanation:

The interior angles of a regular octagon have measures of ...

  180° -360°/8 = 135°

We want that equal to the given expression.

  7x -5 = 135

  7x = 140 . . . . add 5

  x = 20 . . . . . divide by 7

The value of x is 20.

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Pls help and explain it how i do i this <3
jolli1 [7]

Answer:

You input the equation they give you into the table to get an outcome. The Equation they gave you is x=y. simply, what ever X is, thats what y is. x=y. On the table it says that X is 3. If x is 3 then y is three because they are equal. if X is 7 then Y is 7. its the same throughout the whole table. To write it as an ordered pair you write (X,Y) if x is three y is three so the ordered pair would look like (3,3)

4 0
3 years ago
PLEASE HELP!!!!! How many 4-digit numbers divisible by 5, all of the digits of which are even, are there?
saul85 [17]

Answer:

I assume you know Arithmetic Progression .

so, we have to find the first and last 4-digit number divisible by 5

first = 1000 ,  last =  9990

we have a formula,   a_{n} = a + (n-1)d

here, a_{n} is the last 4-digit number divisible by 5.

n is the number of 4-digit even numbers divisible by 5

d is the common difference between the numbers, which is 10 in this case

a is the first 4-digit number divisible by 5

9990 = 1000 + (n-1)*10

899 = n-1

n = 900

Hence, there are 900 4-digit even numbers divisible by 5

7 0
3 years ago
Gemoetry <br> PLEASE HELP!!
olya-2409 [2.1K]

Answer:

Step-by-step explanation:

the triangles are similar because they are proportional. the 3 sides of 2 triangles fall in a particular table.

6 0
2 years ago
Help me answer this question
Ne4ueva [31]

Answer:

Volume=24+192=216

Step-by-step explanation:

Pink Rectangle:

LxWxH

3x1x8

3x8

24

24+192=216

Hope this helps!

5 0
3 years ago
Find the value of 'x' in the given figure​
Archy [21]

\boxed{\large{\bold{\textbf{\textsf{{\color{blue}{Answer}}}}}}:)}

  • (2x-20)°+(x+65)°=180°

  • 2x-20+x+65=180

  • 3x+45=180

  • 3x=180-45

  • 3x=135

  • x=135/3

  • x=45°

8 0
3 years ago
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