Answer:
Step-by-step explanation:
Just the slope, so we can simply apply the definition, as variation in y over the variation in x
<h3>
Answer: y = 14</h3>
===================================
Explanation:
The two angles involving x add up to 180 degrees. This is because they are same side interior angles (and because the horizontal lines are parallel)
So,
(angle BCF) + (angle EFC) = 180
(5x - 66) + (2x + 50) = 180
5x - 66 + 2x + 50 = 180
7x - 16 = 180
7x - 16+16 = 180+16 ... add 16 to both sides
7x = 196
7x/7 = 196/7 .... divide both sides by 7
x = 28
This will be used to help find y
Notice how the angles BCF and ACD are vertical angles, therefore they are congruent or the same measure
angle ACD = angle BCF
9y - 52 = 5x - 66
9y - 52 = 5*28 - 66 ..... replace x with 28 (since x = 28)
9y - 52 = 140 - 66
9y - 52 = 74
9y - 52+52 = 74+52 .... add 52 to both sides
9y = 126
9y/9 = 126/9 .... divide both sides by 9
y = 14
Hi there.
The best way to estimate starts by rounding.
31.9 rounds up to 32.
32/4 = 8
The best estimate for 31.9 divided by 4 is 8.
Let me know if you spot any errors :)
To find X you use the equation
a*2+c*2=b*2
18*2+c*2=22*2
324+c=484
484-324=160
and then /---
160 is the answer
Answer:
diameter = two times the radius
2r
the area = πr²
the circumference= 2πr
hope it helps
