Answer:
it ether b or c
Step-by-step explanation:
<span>The radius of the circle is __17___ units.
(Enter a whole number, not decimals)
The point, (-15, _-16_ ) lies on it's circle. </span>
Answer: The mean absolute devastation is 3
Step-by-step explanation:
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°
Answer:
Step-by-step explanation:
The area of a triangle with height 
and base 
is given by 
. By definition, the base and the height must intersect at a 90 degree angle. Therefore, the diagram gives a base of 14 cm and a height of 8 cm. Substituting these values, we get:
