X is 50 because a triangle should end up being equal to 180 in total and since the top is 80 then that leaves you with 100 and then the two bottoms are the same so that makes it 50
Answer:
Step-by-step explanation:
Sin= o/h = 23/40 = 0.575 = sin^-1(0.575) = 35.1 degrees
Cos = a/h = 37/40 = 0.925 = cos^-1(0.925) = 22.3 degrees
Tan= o/a = 23/37 = 0.622 = tan^-1(0.622) = 31.9 degrees
Answer:
1/6
Step-by-step explanation:
-4/9 * - 3/8
A negative times a negative is a positive
Rewriting
4/9 * 3/8
4/8 * 3/9
Simplifying
1/2 * 1/3
1/6
Answer:
Write a time equation, time = dist/speed
:
go time + return time = total time
d%2F16 + d%2F15 = 7.75 hrs
multiply equation by the least common multiple 240, cncel the denominators:
15d + 16d = 240(7.75)
31d = 1860
d = 1860/31
d = 60 km one way
total dist = 120 km
:
Check this, find the actual time each way
60/16 = 3.75 hrs
60/15 = 4 hrs
-----------------
total time 7.75 hrs
Step-by-step explanation:
