Answer:
D. 70.53
Step-by-step explanation:
To solve this problem, one must use the right angle trigonometric rations. These ratios can be used to describe the ratio between the sides and an angle in a right triangle. Please note, each side is named relative to the angle that one is looking at, thus the same side can acquire different names based on the angle one uses to describe it. The trigonometric ratios are the following:

In this case, one is asked to find the measure of (<CBA), one is given the hypotenuse (the side opposite the right angle), and the side adjacent to this angle. Therefore, one should use the cosine (cos) function to find this angle.

Substitute,

Simplify

Inverse operations,

Compute,
m<CBA = 70.53
Answer:
The triangle is isosceles.
Step-by-step explanation:
This means that one angle's sine is the same as the other's cosine.
Answer:
Step-by-step explanation:
- Number of tourists visiting France = 7.94 × 10^7
- Number of tourists visiting Italy = 4.27 × 10^7
<u>The difference:</u>
- 7.94 × 10^7 - 4.27 × 10^7 =
- (7.94 - 4.27) × 10^7 =
- 3.67 × 10^7 more visitors in France
Answer: D) 2x+19
Step-by-step explanation:
Given : During a walkathon,
Total distance traveled by Team A = 6x+12 miles and
Total distance traveled by Team B = 4x-7 miles.
Now, the difference in miles between the two teams = Total distance traveled by Team A - Total distance traveled by Team B
[∵ (-)(-)=(+)]

Hence, the difference in miles between the two teams = 2x+19
Thus , the correct answer is D) 2x+19 .