Answer:
Step-by-step explanation:
If arccos (√3 / 2) = β, then cos β = adjacent side / hypotenuse = √3 / 2. This tells us immediately that the adjacent side length is √3 and the hypotenuse is 2. Via the Pythagorean Theorem, we know that the third side is 1.
This information rules out the 1st and 3rd answer choices.
Because cos 30° = adj / hyp = √3 / 2, we can conclude that the correct answer is the 4th one: 30°, 60°, 90°
Answer: Stratified Random Sampling
Step-by-step explanation: Got it right
Answer:
How to Make a Stem-and-Leaf Plot
Step 1: Determine the smallest and largest number in the data. The game stats: ...
Step 2: Identify the stems. For any number, the digit to the left of the right-most digit is a stem. ...
Step 3: Draw a vertical line and list the stem numbers to the left of the line.
Step 4: Fill in the leaves. ...
Step 5: Sort the leaf data.
Step-by-step explanation:
This would be true because it shows that p equals either a or b and it also shows that p equals a which is true because it is one of the independent choices.
Answer: -104
Explanation: x=-9 y=2
2(y-3xy)
=2(2-3(-9)(2))
=4-2(3(-18))
=4-108
=-104
Hope it helped
