gavincoscarat760
22.03.2020 •
Mathematics
Simplify: (16-5)-9x1 A. 5 B. 2 C. 4 D. 3
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Ответ:
B. 2
Step-by-step explanation:
(16-5)-9*1
We follow PEMDAS, so do parentheses first
(11)-9*1
Then we do multiplication and division
11-9
Then addition and subtraction
2
Ответ:
Step-by-step explanation:
Is it correct to say that there is a right triangle formed in this situation. The reference angle is the angle of elevation, 42 degrees. We know the side adjacent to the angle is 115,(the distance from the boat to the lighthouse) and we want the length of the side across from the angle (the height of the lighthouse, y). The trig ratio that utilizes the side opposite and the side adjacent is the tangent ratio.
This is the answer choice you need to pick.