The sum of two numbers is 8, and their difference is 22
1 answer:
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Answer:
10) - 45 degrees
12) 0 degrees
Step-by-step explanation:
10)
Find the x and y components that define the vector that joins C with D:
x-component: -4 - (-8) = - 4 + 8 = 4
y-component: 4 - 8 = -4
use the tangent function to find the angle :
12)
Find the x and y components that define the vector that joins A with B:
x-component: 7 - 4 = 3
y-component: - 1 - (-1) = -1 + 1 = 0
use the tangent function to find the angle :
Answer: 30%
Step-by-step explanation:
Percent error =
Estimated number of games win this year = 7
Actual number of games won = 10
Now , the percent error of Doug’s estimate =
Hence, the percent error of Doug’s estimate = 30%