Answer:
B, 
Step-by-step explanation:
Using the law of cosines, which is 
, you can simply insert all the values.
c=|u+v|
a= r value of u (10)
b= r value of v (5)
To find C, you simply have to subtract v from u, and then subtract that number from 180 to find the reference angle.
I.E.: ∠135 - ∠30 = ∠105 ↔ 180 - 105 = 75 = C
so, the completed equation would be 10^{2} + 5^{2}- 2(10)(5)cos(75)
Answer:
For question 3, the slope would be -5
Step-by-step explanation:
If you wanted to graph this you would have to plot one of the points that is already given. Then from that point, you would move 5 units down and 1 unit to the right. If you run out of space, you can go to the other direction by going 5 units up and 1 to the left.
Hope this helps :)
9514 1404 393
Answer:
AB = 4
∠E = 30°
Step-by-step explanation:
Side AD is 4 times the length of corresponding side EH, so we expect side AB to be 4 times the length of side EF.
AB = 4·EF = 4·1
AB = 4
__
Angle E will have the same measure as corresponding angle A.
angle E = 30°
Answer: Length: 24
Step-by-step explanation:
