12 cards : $0.25
8 cards : $0.15
The measures of the four angles of quadrilateral ABCD are 36°, 72°, 108° and 144°
<u>Explanation:</u>
A polygon has three or more sides.
Example:
Triangle has 3 sides
Square has 4 sides
Pentagon has 5 sides and so on.
27)
In a quadrilateral ABCD, the measure of ZA, ZB, ZC and ZD are the ratio 1 : 2 : 3 : 4
We know,
sum of all the interior angles of a quadrilateral is 360°
So,
x + 2x + 3x + 4x = 360°
10x = 360°
x = 36°
Thus, the measure of four angles would be:
x = 36°
2x = 2 X 36° = 72°
3x = 3 X 36° = 108°
4x = 4 X 36° = 144°
Therefore, the measures of the four angles of quadrilateral ABCD are 36°, 72°, 108° and 144°
<u>Answer</u>:
- 3
option c). is correct!
<u>Step-by-step explanation</u>:
Given :
5 ( 6 + x ) = 15
= > 30 + 5 x = 15
= > 5 x = - 30 + 15
= > 5 x = - 15
= > x = - 15 / 3
= > x = - 3
Therefore, final answer is - 3
Answer:
Yes
Step-by-step explanation:
Remember in order for the rates to be proportional it has to have a constant rate of change and it has to go through the origin if graphed
For one this has a constant rate of change which is 3 dollars per 25 messages
Now we just have to find out if it would go through the origin (0,0)
To do so we subtract 3 dollars and then 25 messages
6-3=3
50 - 25 =25
then again 25-25=0
3-3=0
concluding that (0,0) is a solution
Thus meaning that this is a proportional relationship
Answer:
C = 44.0 cm
Step-by-step explanation:
The circumference can be found by
C = pi*d
C = 3.14 * 14
C =43.96
Rounding to the nearest tenth
C = 44.0 cm
