All categories

2 years ago

Which polygon is a concave octagon?

Mathematics

2 answers:

Bezzdna [24]2 years ago

8 0

The polygon in option 3 is not octagon at all, it is heptagon (or 7-sided polygon).

A convex octagon has no angles pointing inwards. More precisely, no internal angles can be more than 180°.

When some internal angle is greater than 180°, it is concave.

In option 2 you can see that one angle is pointing inward, then this octagon is concave.

Answer: correct choice is B.

Lena [83]2 years ago

3 0

2nd one. it is concave because one of the side goes inside of the octogon.Its pretty easy tbh. Hope it helped.

You might be interested in

Using the Distributive Property to factorize the equation 3x^2 + 24x = 0, you get _____The solution of the equation is _____

stiv31 [10]

Solution is x=0 x=-8

7 0

3 years ago

HELP!!! Use the factor Theorem to determine whether the binomial x+1 is a factor of the polynomial function f(x) =2x^3-9x^2+13x-

Dovator [93]

ANSWER

A. No because f(c)=-30

EXPLANATION

The given polynomial is

$f(x) =2x^3-9x^2+13x-6$

If x+1 is a factor , then f(-1) must evaluate to zero.

$f( - 1) =2( - 1)^3-9( - 1)^2+13( - 1)-6$

$f( - 1) =2( - 1)-9( 1)+13( - 1)-6$

$f( - 1) = - 2-9 - 13-6$

$f( - 1) = -11 - 19$

$f( - 1) = - 30$

Since f(-1) is not equal to zero, x+1 is not a factor of

$f(x) =2x^3-9x^2+13x-6$

6 0

3 years ago

Hiw do I Graph the line y=-3

Lostsunrise [7]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

If f ( x ) = 2x + 2 and g ( 1 ) = 3x – 1, find (f/g) (2)

schepotkina [342]

Answer:

6/5 or 1.2

Step-by-step explanation:

Given functions:

f (x) = 2x + 2
g (x) = 3x – 1

To find:

(f/g) (2)

Solution

(f/g)(x) = f(x)/g(x) = (2x + 2) / (3x - 1)
(f/g)(2) = (2*2 + 2) / (3*2 - 1) = 6/5 = 1.2

6 0

3 years ago

Read 2 more answers

You roll a dice twice. Find the probability of getting 3 in first throw and 5 in second throw.

Debora [2.8K]

Answer:

1/6

Step-by-step explanation:

there are 6 faces on a dice so there's a 1 in 6 chance that you would roll a 3 on your second go there is still only a 1 out of 6 chance of getting a 5 because there is still 6 numbers you could roll on.

hope this helped

8 0

2 years ago