Answer:
I only know the answer to part A. The triangles ARE similar and they ARE congruent.
Step-by-step explanation:
The big triangle has 75° and 60°.
The little triangle has 75° and 45°
75°+60°+45° = 180°
45° is the missing interior angle for the big triangle.
75°+45°+60° = 180°
60° is the missing interior angle for the little triangle.
Answer:
A. -1 1/3
Step-by-step explanation:
I am assuming you want to find the number that is farthest to the right of all 4 possible choices. In that case, the bigger the negative number, the farther left it is on the number line. The smaller the negative number, the farther right it is on the number line.
No because the opposite of a negative is positive
Answer: D
Step-by-step explanation: I just took the quiz, it should work
Answer:
XY = 23.3 ft
Step-by-step explanation:
It helps if you can draw yourself a picture.
You are given right triangle with the adjacent side of the 9° angle and you are looking for the hypotenuse.
The cos of an angle = adjacent side/hypotnuse
Let h = XY
Then cos 9 = 23/h
h cos 9 = 23
h = 23/cos 9
h = 23.3 ft.