Let's write this proportion of equivalent ratios in equation form and then plug in our two known values to determine our two unknown values:
(s1)2 : (s2)2 = A1 : A2
(10)2 : (7)2 = 100 : 49
Ratio of the Areas = 100 : 49
Law cosines:

16 + 256 - 128

=> y ≈ 16.51;
Law sines: 16/sinx = 16.51/sin30 => sinx = 0.48 => x ≈ 29 degrees;
The slope-intercept form:

m - slope
b - y-intercept
We have the slope m = 1/4 and y-intercept (0, -4) → b = -4.
Answer: 
8 + 0.15m = 22 + 0.10m
0.15m - 0.10m = 22 - 8
0.05m = 14
m = 14/0.05
m = 280
Answer: <em><u>280 minutes</u></em>
Answer:
except b, all are true
Step-by-step explanation:
angle 6 = 55(opp angles)
angle 5 = 125(supplementary angles)
angle 3= 55(alternate to angle 6)
angle 1 = 125
angle 4 = 125