Answer:
The angles are <u>155°</u> and <u>25°</u>.
Step-by-step explanation:
Given:
Two supplementary angles are in the ratio of 31:5.
Now, to find the angles.
The sum of two supplementary angles = 180°
Let the ratio of the angles be 
.
So, according to question:
<em>Dividing both sides by 36 we get:</em>
So, 
And, 
Therefore, the angles are 155° and 25°.
Answer:
(24, -15)
Step-by-step explanation:
-3x + 4y = 12
3x – 6y = 18
Add the two equations together to first solve for y
-2y=30
y=-15
Enter -15 into one of the equations to solve for x
-3x + 4(-15) = 12
-3x-60=12
-3x=72
x=24
Hope this helps! Please mark brainliest :)
Answer:
5
Step-by-step explanation:
b − a
Let a = 2 and b = 7
7-2
5
Answer:
diameter=18 in
radius=9 in
area=254.47 in
circumference=56.55 in
Step-by-step explanation:
<u>Key</u>
C=Circumference
D=Diameter
R=Radius
A=Area
π=pi=3.14159265359
<u>Formulas</u>
2r=d
d/2=r
πr^2=a
(2πr)=c
Brainliest Plz
