Answer:
57.6159 round if needed
Step-by-step explanation:
We know the length of the triangle which is 298. We know the base of the triangle which is 189.
We need to find angle of elevation so we must use tangent function.

Use inverse tan function

Round if needed.
True, when the signs are different the answer is a negative, but when the signs are the same the answer is a positive.
Answer:
D. for the first one, A. for the second (not certain)
Step-by-step explanation:
1. 36/2 (two books every visit) = 18, multiplied by 3 because that's how many often he does to the library (every 3 weeks)
2. 13/2 = w/5 because for every 13 cups of water, there is two cups of cleaner, so for w (unknown amount of water) there would be 5 cups of concontrated cleaner.
Answer: Mass is how much stuff something is made of. Volume is how much space an object takes up.
Answer:
sorry I do not know
Step-by-step explanation: