Answer:
46
Step-by-step explanation:
So, we have these values:
40: 1 time
41: 2 times
45: 1 time
48: 2 times
49: 3 times
50: 1 time
A total of 10 dots spread over 6 values.
We need to calculate a weighted mean (average) for them... so, we add up each dot then divide the total by 10:
40 + 41 + 41 + 45 + 48 + 48 + 49 + 49 + 49 + 50 = 460
460 / 10 = 46
Answer:
b = 230 degrees a= 25 degrees
Step-by-step explanation:
d and e are right angles (90 degrees) because when tangent meets radius at circumference a right angle is formed.
c= 180 - 65 - 90 = 25 degrees because angles in a triangle add up to 180
both triangles are congruent as they share the middle line, they have tangents that meet radi(which are equal), and both have right angles. this means that all angles are same in the triangles so a =c =25 and f=65.
65+65=130
360-130 = 230
because angles around a point add up to 360.
b=230
Answer:
x ≤ -18. I hope this helps
Step-by-step explanation:
The first thing you want to do is combine like terms. This means you should have all the x's on one side and the constants (numbers) on the other side. You can subtract 5x from both sides of the equation and then add 7 to both sides. This gives you -2x=26. Divide both sides be -2 to isolate the variable and your answer is x=-13. Hope this helped!
