Answer: K= 5
Step-by-step explanation: Hope this helps! :)
It's a linear binomial because it has two terms (binomial) and one degree (linear).
Answer:
Slope = 2
Step-by-step explanation:
So to find the slope we have to put it in y = mx + b form;
2y = 4x - 8
Divide both sides by 2;
y = 2x - 4
The slope is 2
Answer:
18°
Step-by-step explanation:
The law of cosines tells you ...
a² = b² + c² -2bc·cos(A)
Solve for cos(A) and fill in the numbers. Note that the value of cos(A) is very close to 1, so the angle will be fairly small. This by itself can steer you to the correct answer.
cos(A) = (b² +c² -a²)/(2bc) = (49 +100 -16)/(2·7·10) = 133/140
A = arccos(133/140) ≈ 18.2° ≈ 18°
20 most likely multiply it and see
