Answer:
1
Step-by-step explanation:
1) first, we need to calculate slope of old line:
Let’s take coordinate points (3,7) and (4,9)
3-x1
7-y1
4-x2
9-y2
Slope formula: (y2-y1)/(x2-x1)
Let’s plug in our values:
(9-7)/(4-3)
2/1
Old slope=2
So we need to divide 2 with 2
2/2=1
New slope=1
Hope this helps
It's the bottom one. Miko found the incorrect and checked her work using multipication incorrectly.
This is because the correct way to solve this would to use (5/1) * (3/5) = (15/5) then simplify it to 3/1 or simply 3.
Dividing fractions is simply flipping the second fraction and then multiplying across
Answer:
this makes no sense can u simplify it in the comments and i'll answer there pls
Answer: The central angle of the arc is 162 degrees.
Step-by-step explanation: The information available are as follows;
Circumference of the circle equals 10. Length of an arc equals 9/2. The circumference of a circle is given as;
Circumference = 2Pi x r
That means 2Pi x r = 10.
Also the length of an arc along the same circle is 9/2. Length of an arc is calculated as;
Length of arc = (X/360) x 2Pi x r
Where X is the central angle of the arc
That means;
9/2 = (X/360) x 2Pi x r
We can now substitute for the known values as follows
Length of an arc = (X/360) x 2Pi x r
9/2 = (X/360) x 10
9/2 = 10X/360
By cross multiplication we now have
(9 x 360)/(2 x 10) = X
3240/20 = X
162 = X
The angle at the center of the arc is 162 degrees.
