All categories

3 years ago

What is the measure of an exterior angle of a regular octagon? a. 360. b. 135. c. 60. d. 45

Mathematics

2 answers:

grin007 [14]3 years ago

6 0

45^o is the correct answer just took the test

Darya [45]3 years ago

5 0

An octagon has 12 sides;
The measure of an exterior angle is:
$\frac{360}{12} = 30^{0}$

You might be interested in

A direct variation function contains the points( -8,-6) and (12,9). Which equation represents the function ?

natulia [17]

Answer:

y = (3/4)x

Step-by-step explanation:

1) Find the slope of the line. As we go from ( -8,-6) to (12,9), x increases by 20 and y increases by 15. Thus, the slope, m, is m = rise / run = 15/20 = 3/4

2) Recognize that the y-intercept is zero (0) because this is direct variation; the line goes thru the origin.

3) write the equation of the line: y = mx + b becomes y = (3/4)x

6 0

3 years ago

Read 2 more answers

Plz help me!!!!!!!!!

Over [174]

Answer: $\bold{\dfrac{4\pm \sqrt{6}}{2}}$

<u>Step-by-step explanation:</u>

$\dfrac{3}{y-2}-2=\dfrac{1}{y-1}\\\\\\\text{Multiply by the LCD (y-2)(y-1) to clear the denominator:}\\\\\dfrac{3}{y-2}(y-2)(y-1)-2(y-2)(y-1)=\dfrac{1}{y-1}(y-2)(y-1)\\\\\\3(y-1)-2(y-2)(y-1)=1(y-2)\\\\3y-3-2(y^2-3y+2)=y-2\\\\3y-3-2y^2+6y-4=y-2\\\\-2y^2+9y-7=y-2\\\\0=2y^2-8y+5\quad \rightarrow \quad a=2,\ b=-8,\ c=5\\\\\\\text{Quadratic formula is: }x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\\x=\dfrac{-(-8)\pm \sqrt{(-8)^2-4(2)(5)}}{2(2)}\\\\\\.\ =\dfrac{8\pm \sqrt{64-40}}{2(2)}$

$.\ =\dfrac{8\pm \sqrt{24}}{2(2)}\\\\\\.\ =\dfrac{8\pm 2\sqrt{6}}{2(2)}\\\\\\.\ =\dfrac{4\pm \sqrt{6}}{2}$

7 0

3 years ago

use the given conditions to write an equations. solve the system and find the number. The sum of two numbers is 6. if one number

Ugo [173]

The answer would be 2 and 4 because if you added these two numbers together it would equal 6 and but if you subtracted 4 from 2 you would get -2. ex- if you have 4 dollars and you gave your friend those 4 dollars but the next day they payed you back 2 they would still need to give you back 2 dollars.

8 0

4 years ago

Antonio is buying milk for a breakfast event. Each container of milk costs $3. He must spend $12 or less on milk for the event.

madreJ [45]

Answer:

3x ≤ 12 x≤4

Step-by-step explanation:

If Antonio has only $12 to spend on the milk, then the inequality sign should be less than or equal to. Since he can not go over 12. So from this you must figure out how many cartons he can buy. 12/3 = 4. So the maximum amount he can buy is 4 cartons.

7 0

2 years ago

Anderson uses the discriminant to correctly find the number of real solutions of the quadratic equation x2 + 4x + 8 = 0. Which e

levacccp [35]

C because b^2 - 4ac is less than 0.

4 0

3 years ago

Read 2 more answers