Answer:

Step-by-step explanation:
Hello, please consider the following.

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4. is A 15
5. is C 12
6. is B 4, 8, 12, 16
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The answer is 121 because if you add,multiply, and divide, you will be ableto find the answer

By the quadratic formula,

Then


Multiply numerator and denominator by the denominator's conjugate:

Answers:
x = 24
y = 8√3
Explanation:
1) Since, the given triangle is a right triangle, and you have both an angle and the hypotenuse length, you can use some trigonometric ratios to find the variables.
2) The variables given represent:
x: adjacent-leg to angle 30°
y: opposite length to angle 30°
3) sine ratio:
sin 30° = opposite-leg / hypotenuse = y / (16√3)
⇒ y = 16√3 sin 30° = 16√3 × (1/2) = 8√3
4) cosine ratio
cos 30° = adjacent-leg / hypotenuse = x / (16√3)
⇒ x = 16√3 cos 30° = 16√3 (√3 / 2) = 16 × 3 / 2 = 24